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Home My WebLink About6/8/1992Next Resolution No. 92-13 SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT AUDITORIUM 21865 E. COPLEY DRIVE DIAMOND BAR, CA 91765 June 8, 1992 CALL TO ORDER: 7:00 pm PLEDGE OF ALLEGIANCE ROLL CALL: COMMISSIONERS: Chairman Flamenbaum, Vice Chairman MacBride, Grothe, Li and Meyer MATTERS FROM THE AUDIENCE/PUBLIC COMMENTS: This is the time and place for the general public to address the members of the Planning Commission on any item that is within their jurisdiction, allowing the public an opportunity to speak on non-public hearing and non -agenda items. Please complete a -F-- +1,- - - - A- 1--,,,-1-+;.-- - -F 4-k 4 - form is voluntarv). There is a five minute maximum time limit he CONSENT CALENDAR: The following items listed on the consent calendar are considered routine and are approved by a single motion. Consent calendar items may be removed from the agenda. -by request of the Commission only: 1. Minutes of May 4, 18 and 21, 1992 OLD BUSINESS: None NEW BUSINESS: None SPECIAL PRESENTATION: 2. Tres Hermanos Conceptual Plan A special presentation will be made by the City Consultant Team headed by Kotin, Regan & Mouchly, Inc. CONTINUED PUBLIC HEARING 3. Tentative Tract Map No. 50519/Development Review No. 91-2/ Development Agreement No. 91-2 / Zone Change 91-1 A request for approval to subdivide a 2.3 acre site into six (6) lots and 80 condominium units in a Senior Citizen complex designed with underground parking structures. The complex is designed with five (5) three story structures containing 16 units per building. The Zone Change request is to amend the site from the current Zone C-1 (Restricted Business) classification to Zone R-4 (Unlimited Residential). The Development Agreement is required to guarantee the Senior Citizen composition and for the construction of condominiums and structures in excess of two (2) floors in Zone R-4. The Development Review application is required for all new commercial and multi -family residential construction. The project is located near the northwest of Torito Lane and Golden Springs Ave. The applicant is Diamond Development Co., A, California Limited Partnership, 1700 Raintree Road, Fullerton., Ca -.-92635. Environmental Determination Mitigated Negative Declaration 4. Draft General Plan (continued from June 1, 1992) The Diamond Bar General Plan is a statement by local citizens of what they feel is in the best interest of their community. It serves as a blueprint for the type of community they desire for the future, and provides the means by which that future can be obtained. The General Plan expresses, in the form of text, maps.and illustrations, the policies and programs necessary to create and maintain a functional, healthful and desirable environment in which to work and live. The Diamond Bar General Plan will serve as a comprehensive strategy for the management of growth and change in our community throughout the next twenty years. The Proposed General Plan addresses both the incorporated city limits and its adopted sphere of influence. The Draft Environmental Impact Report (DEIR) prepared for the Diamond Bar General Plan addresses the environmental impacts created by the Plan as well as mitigation measure's for the impacts. The Draft Diamond Bar General Plan incorporates the seven required general plan elements (land use, housing, open space, conservation, safety, noise, and circulation) into five major sections: The Plan for Public Services and Facilities The Plan for Resource Management (Open Space, Conservation) The Plan for Public Health and Safety (Noise and Safety) The Plan for Physical Mobility (Circulation) The Plan for Community Development (Land Use, Housing) a The focus of the June 8, 1992, hearing will be to conclude the review of the General Plan and to adopt a Resolution forwarding the document to the City Council. ANNOUNCEMENTS: Staff Planning Commissioners ADJOURNMENT: CITY OF DIAMOND BAR MINUTES OF THE PLANNING COMMISSION MAY 41 1992 CALL TO ORDER: Chair/Flamenbaum called the meeting to order at 7:05 p.m. in the South Coast Air Quality Management District Board Meeting Room, 21865 E. Copley Drive, Diamond Bar, California. PLEDGE OF The audience was led in the Pledge of Allegiance by ALLEGIANCE: CD/DeStefano. ROLL CALL: commissioners: Grothe, Meyer, Vice chairman MacBride, and Chairman Flamenbaum. commissioner Li arrived at 7:08 p.m. Also present *were Community Development Director James DeStefano,' Associate Planner Rob Searcy, Planning Technician iAnn'Lungu, Associate Engineer David Liu, District City Attorney Bill Curley, Lloyd Zola of the Planning Network, Paul Taylor, a principal of DKS, and Contract Secretary Liz Myers. MATTERS FROM Marc Perrin, with Bramalea California Inc.,. 1 Park THE AUDIENCE: Plaza Ste. 1100, Irvine, stated that Bramalea, the owner of the property referred to in the General Plan as either the upper Sycamore property, or the Bramalea property, upon review of the draft General Plan as it has been presented, object to the designation- of -a substantial. portion of the property as open space and park space. we consider it a taking of that property without just compensation. He submitted a letter, from Bramalea California, Inc., to the Commission. CONTINUED CD/DeStefano reported that this is the third in a PUBLIC HEARING: series of public hearings regarding the new General Plan of Diamond Bar. The Commission has reviewed The Plan the Plan for Public Services and Facilities, the for Resource Plan for Resource Management, and the Plan for Management Public Health and Safety. The Plan for Public services and Facilities has been finalized by the Commission. The Commission will look towards finalization of the Plan for Resource Management tonight. The commission concurred to review the Plan for Resource Management, as was amended, per Commission's direction, on April 20, 1992. The Public Hearing was declared opened for any comments regarding the Plan for Resource Management. The Public Hearing was declared closed. C/Grothe made the following comments: page 3, last paragraph, should have been amended to read, "...are in a historic area that may contain..."; and page 6, last paragraph, second to the last May 4, 1992 Page 2 line, the word "anyway" should be deleted. The Commission concurred. Chair/Flamenbaum recessed the meeting at 7:18 p.m-, to allow staff time to make additional copies of the Plan for Resource Management for the members of the audience. The meeting was reconvened at 7:30 p.m. CD/DeStefano, while waiting for further copies to be made, explained the components of the Plan for Resource Management to the audience. C/Grothe made the following comments: page 10, Strategy 1.1.1, the statement "State Route 57 Scenic Highway corridor" was to be relocated to follow the revision of the statement "...the south end of The Country, Tonner Canyon, and State Route 57 Scenic Highway corridor."; and page 11, Strategy 1.1.8, second line, was to delete the comma following the words "adjacent to". The Commission concurred. VC/MacBride stated_ _ that the "m" . from. the word "feasible" on page 12, Objective 1.2, should be deleted. Chair/Flamenbaum, referring to page 13, Strategy 1.2.2.b, stated that he recalled that the Commission had concurred that it was to be reworded to indicate that there should be some mitigation plan for any tree, deleting the specific trees. CD/DeStefano, referring to his notes, stated that the Commission wished to eliminate many of the specifics, and deal with the general issues of tree preservation. Staff tried to eliminate most of the subsections and combine it all into a mitigation plan, for removal of trees of 6" or greater in diameter, under Strategy 1.2.2.b. Chair/Flamenbaum stated that his concern was calling out the requirement for an ordinance, then specifically mentioning trees that were clearly deleted from the ordinance, by the City Council. C/Meyer stated that the Commission had wanted reference to an ordinance deleted, to be replaced with reference to plans and programs. Chair/Flamenbaum requested staff to rewrite the strategy to delete the specific tree and to delete reference to the ordinance. May 4, 1992 Page 3 C/Meyer suggested that the word "ordinance" be deleted, and the word "plan" be inserted. He also stated that the Commission was referring to a mitigation plan, not just . a "replacement" mitigation plan. The Commission concurred. C/Grothe noted that Strategy 1.2.5, on page 14, should actually be numbered 1.2.4. VC/MacBride made the following corrections: the I'm" in Objective 1.3 should be deleted; the word "of" in Strategy 1.3.9, first bullet, should be deleted; delete the word "all from Strategy 2.1.5.a; and delete the words "an aggressive" from objective 2.5. Chair/Flamenbaum noted that references to Assembly Bills, such as AB939 and AB2707, were to be footnoted to the appropriate code section. VC/MacBride requested that the statement "conduct an aggressive" be deleted from Strategy 2.5.9. Chair/ Flamenbaum noted that the meaning ,to the abbreviation HHW, in Strategy 2.5.11, is not referenced in the document. Motion was made by *C/Meyer, seconded by VC/MacBride and CARRIED UNANIMOUSLY to approve the revised Plan for Resource Management, as further amended. The Plan The commission concurred to review the Plan for for Physical Physical Mobility. Mobility Chair/Flamenbaum informed the audience that changes made, to this document, this evening, will be presented back to the commission in two weeks. CD/DeStefano reported that the purpose of the Plan for Physical Mobility is to examine Diamond Bar's overall circulation for the needs of the community. The plan is designed to provide basic goals, objectives, and . programs to manage existing transportation facilities and future growth. Diamond Bar's system is significantly affected by forces outside it's jurisdiction. The Circulation Element is designed to account for those external forces and develop a strategy to implement the choices that are before the City, and the decisions that the City makes. The circulation system needs involve a balancing of the demand for increased roadway capacity with a vision for our community image and our overall quality of life. He introduced Lloyd Zola, from the Planning Network, May 4, 1992 Page 4 and Paul Taylor, a principal of DKS. The Planning Network has been the principal consultant for preparation of the General Plan, advising the GPAC, Planning commission, City.council, and City Staff. DKS is the consultant, that the City engaged in December of 1990, for preparation of the Plan for Physical Mobility. Lloyd Zola explained that with the opening of Grand Ave., it became apparent that the City would have to take it's own route on preparing a circulation element. The City did a separate request for proposals, and retained DKS & Associates to prepare the Circulation Element. Therefore, there is the original preparation of the General Plan, occurring through the Planning Network, and the Circulation Element, occurring through DKS. The important factors to consider when looking at the Circulation Element is the basic requirement, under State law, that the Circulation Element must be related to, and support, the Land Use Element. one of the important land use factors discussed by GPAC, that start affecting traffic, is the need to protect the integrity of residential neighborhoods within the community. The Commission will be asked to balance the importance of protecting the integrity of neighborhoods compared with the traffic benefits. Another factor discussed was that, though Tonner Canyon is to ultimately be a master plan development, the unique biological resources and open space characteristics of Tonner Canyon is to be preserved. The GPAC determined that, as part of protecting those resources, putting a roadway through the Canyon would not be appropriate. The Commission will be asked to balance the biological preservation, and the importance of the environmental aspects of Tonner Canyon, with the traffic needs or criteria to build that roadway. The Planning Commission's role is to define the internal consistencies of the Plan, to improve the traffic flow through the City, balancing it with the other Elements, plus the land use thrust of maintaining the quality of life we have in the community in the future. Paul Taylor explained that they are the experts who address the traffic impacts, of the land use desired by the City. As was indicated, DKS was engaged over a year ago to develop this element of the General Plan. At that point we began developing an early working dialogue with the TTC, and, eventually, with the GPAC. He then reviewed the figures and tables from the Plan for Physical Mobility: May 41 1992 Page 5 Figure 2-1 - The existing roadway system. Figure 2-3 - Major intersection locations and deficient peak hour levels of service. Figure 2-4 - PM peak percentage of through trip traffic. The surveys taken indicate that, on Diamond Bar Blvd., south of Grand Ave, 20 % or more of the traffic during the peak rush hour is through traffic, on Grand Ave., west of Diamond Bar Blvd., the through traffic is in excess of 20 %, and east of Diamond Bar Blvd., the through traffic is 40 or more. Figure 2-5 - Existing transit service routes. One of the ways to relieve and mitigate some of the traffic congestion is with public transit. Figure 2-6 - Existing designated bicycle route. The two. bicycle routes, along Golden Springs and ..Diamond Bar -Blvd., provide an alternate -means of.. transportation. Figure 2-7 Proposed equestrian trail. Figure 2-8 Designated truck routes. This is an important aspect of the City's transportation system that deal with the movement of heavy trucks, and where they must be. Table 3-3 - Roadway classification. The GPAC recommended that Diamond Bar Blvd. and Lemon Ave., south of Colima, be reclassified from a major arterial to a secondary 'arterial, and that Sunset Crossing/Washington/Beaverhead be reclassified from a secondary arterial to a cul-de- sac. Mr. Taylor corrected that the roadway improvement standard for Lemon Ave. should indicate 80 feet, which is ' consistent to the reclassification to a'secondary street. Table 3-4 - Freeway arterials - Existing and estimated future average daily traffic (without Tonner Canyon Road). This table is representative of the result of the Travel Forecasting that was done with the regional and City model that was prepared for Diamond Bar. He explained that a street with a V/C ratio under May 4® 1992 Page 6 1.00, such as .94, can be viewed as 94% saturated. A number over 1.00 is an indication of a theoretical over capacity, but factually a physical impossibility. The future forecast, for a number of the streets, are shown with a theoretical over capacity in 20 years from now, under the recommended future land use scenario. Table 3-5 - Future average daily traffic and volume -to -capacity ratios for selected arterials with and without Soquel Canyon Road/Tonner Canyon Road extensions. He noted that the addition of Soquel Canyon Road/Tonner Canyon Road has the effect of returning and retaining the traffic congestion on Grand Ave. and Diamond Bar Blvd. to the levels experienced today.. Mr. Taylor pointed out the following key issues that resulted from the analysis, and are reflected in the goal, strategies, and objectives: regional through traffic is. a significant .problem in. planning for physical mobility within the City; the addition of Tonner Canyon Road is not a solution for the traffic problem; and the extension of Sunset Crossing/Washington/Beaverhead would add additional traffic. Lloyd Zola, in response to C/Meyer's inquiry regarding the traffic numbers used in the open space areas, stated that the canyon area was done projecting future volumes forward, realizing that there is some traffic generated in and out of the boy scout area, and Tres Hermanos was estimated at a buildout of similar density to the balance of the City. Paul Taylor, in response to Chair/Flamenbaum's inquiries, stated that, because of the canyon's relative inaccessibility from the rest of Diamond Bar, the traffic on Diamond Bar Blvd. and Grand Ave. would be little affected by the extent of buildout in Tonner Canyon. If it were accessible, hypothetically, it could dump even more traffic into the area. He, does not subscribe to the theory that at some point you can build enough capacity that you won't have any more problems, because traffic will fill what ever space is provided to it. Paul Taylor, in response to C/Meyer's inquiry as to what mitigation measures are used to reduce traffic May 4, 1992 Page 7 volumes, stated that the single most effective measure that can be done is to encourage more people in fewer cars. Another approach is staggering work hours, which reduce traffic volumes because there a less people trying to use the same roads at the same time. One way streets can be an effective way of improving the traffic flow but it doesn't do anything to reduce the traffic. Traffic signals are very effective in improving the capacity of an intersection, if there is an unbalanced flow of traffic. If the traffic flow is balanced, a four way stop sign is most effective. If the traffic signals are very close together, and they are not coordinated, that route could turn out to be less desirable or attractive than they would under other circumstances. The Public Hearing was declared open. Jelie Bordena, a resident, in opposition to the opening Sunset Crossing, stated that the City has a responsibility to meet the needs of the citizens. If more roads are built, there will be an increase in traffic that will have a negative impact on the children of the community. John Beke, residing at 1248 S. Hern Dr., a member of the TTC, and a traffic engineer for 35 years, made the following comments: the Circulation Element is designed to thwart all traffic, therefore, according to the data, this would mean that 20% of the regional traffic will be inconvenienced, but 80% of our residents will also be inconvenienced; Sunset Crossing has been designated to be opened for 52 years; if there is opposition to having trucks on Sunset Crossing, then all the City needs to do is post "No Truck" signs; according to table 3-5, the traffic on our roads will double if a Tonner Canyon Road is not built; and a road can be built in Tonner Canyon that is blends in naturally with it's environment. Kim Chapman, residing at 22713 Happy Hallow Rd., in opposition to the opening of Sunset Crossing/ Beaverhead, noted that, if the road were to be opened, the railroad could cause terrible back up congestion, especially with the three ball fields, a YMCA, and 300 homes that surround that area of Sunset Crossing. Red Calkins, residing at 240 Eagle Nest Dr., made the following comments: the increase in traffic from opening Sunset Crossing would be chaos to the existing neighborhood; speaking from experience, May 4, 1992 Page 8 posting "No Trucks" would have little or no effect; and since there are plans to build a MRF on the other side of Sunset Crossing, there would be a lot of -garbage trucks using the road. - Todd Chavers, ' residing at 23816 Chinook Pl., a member of the TTC, made the following comments: buildout refers - to alternative land use and has nothing to do with homes; since four of the members picked with DKS are no longer with that firm, there is a lack of consistency in developing this element; the intent is to try to achieve a balance, yet Tonner Canyon is being ignored; to say that the City will not do something, sets us up for liability; there are so many inconsistencies within the element; and the TTC should be requested to be involved on a more formal bases. Clyde Hennesy, residing on Sunset Crossing, stated that opening Sunset Crossing is a temporary fix that will affect 3,000 people in the area. Don Gravdahl, residing at 2398 Minnequa, a member of the TTC, made the following comments: local streets are being referred to as collector streets; opening Sunset Crossing would create a traffic mess; if the roads are opened to regional traffic, how would we protect existing neighborhoods; any reference to Sunset Crossing should be omitted; and the document should indicate that a public hearing will be held if these roads (Sunset Crossing, Beaverhead, and Washington) are ever considered to be opened. Chair/Flamenbaum recessed the meeting at 9:11 p.m. and reconvened the meeting at 9:23 p.m. Deborah Carter, a resident, opposing the opening of Beaverhead, stated that the school in the area, and the safety of the children, should be a major consideration. Max Maxwell, residing at 3211 Bent Twig Lane, stated that the issue of environment was not fully addressed in Tonner Canyon. The Planning Commission seems to have a "pro development" attitude. He would like the Commission to stand up and protect the environment in the General Plan. Gary Neely, residing at 344 Canoe Cove Dr., stated that Strategy 2.3.1, in the Plan for Resource Management, should refer to not only the vehicle miles traveled, but the amount of people in the cars, and the length of time it takes to travel. May 41 1992 Page 9 He made the following comments in regards to the Plan for Physical Mobility: the document already indicates that Sunset crossing, Washington, and Beaverhead are to be cul-de-saced; the document should be kicked back to the TTC to allow them an opportunity to review and amend the document accordingly; an access road to the new High School in Tres Hermanos needs to be addressed; the Plan is, at best a sophomoric effort, with the facts and 'conclusions inconsistent with each other; Tonner Canyon Road can be built in a biologically safe way; and he is in opposition to a toll booth for Grand Ave. Sylton Hurdle, residing at 105 N. Palo Cedro Drive, stated his opposition to the opening of Beaverhead. Don Robertson, residing at 309 N. Pantado Dr., a member of GPAC, stated the GPAC's feeling on traffic, in general, is that there are two ways to solve a traffic problem: open the roads and let the traffic through; or restrict the roads and let the traffic go around Diamond Bar. The GPAC would like to make it difficult for the outsiders to travel through Diamond Bar, and make it easier for the local residents. The GPAC is not against a road in Tonner Canyon, but against a regional parkway put through Tonner Canyon. * He stated that opening Beaverhead would impact the schools in a terrible way. The Public Hearing was declared closed. Chair/ Flamenbaum indicated that he would like the members of the 'Traffic and Transportation Commission to come forward, as individuals, to answer any questions that the Planning Commission may have regarding the Circulation Element. The Commission concurred. Chair/Flamenbaum, noting that sooner or later Tonner Canyon will be part of Diamond Bar, inquired how, philosophically, one could say that opening Tonner Canyon is appropriate, yet Sunset Crossing is to be left closed. Don Gravdahl stated that the two situations are completely different. Sunset Crossing is a residential area that has been built up for about 30 years. According to the consultants figures, Sunset Crossing, east of Diamond Bar Blvd., should be well over capacity today, and yet you're asking why it shouldn't be further impacted. On the other hand, there are no persons living in the Tonner May 4, 1992 Page 10 Canyon area today. Tonner Canyon Road is a traffic reliever for Diamond Bar, and should, at least, be explored. He stated that he is in agreement, with the other individuals, that are members of TTC, that spoke regarding the development of a Tonner Canyon Road. The opinions on sunset Crossing are not so different, and could probably be worked out. His concern is that there be adequate protection should one of those streets ever want to be open. There should be some safeguards in place assuring that there are hearings, by the City Council, to allow citizens to express their opinions to make it work. Chair/ Flamenbaum inquired how the over pass for the 57/60 interchange, and the need to accommodate a High School in north Diamond Bar, should be addressed. Todd Chavers stated that., philosophically, one should question if the improvement will benefit Diamond Bar. Opening Sunset Crossing will probably not benefit the City. In regard to Tonner Canyon, two situations have been -projected: the traffic conditions with a Tonner Canyon Road; and the traffic conditions without a Tonner Canyon Road. The question to ask is which one of these conditions are we willing to accept, and if it is an either/or situation, or some balance of a combination. According to Caltrans, when the 71/60 interchange is resolved, the east bound 60 to northbound 57 movement is supposed to use that new interchange. Therefore, our need for the overpass is minuscule, and is not an acceptable solution. The question, regarding the road to the High School, is determining how we provide good access for Diamond Bar, without providing good access to the rest of the world. That is a different question than TonnerCanyon, and Sunset Crossing. John Beke concurred that the issue of Tonner Canyon and Sunset Crossing is different. The benefits, to the City, by opening. Sunset Crossing, may be nil, but, it would improve regional circulation. Tonner Canyon, on the other hand, is going to benefit Diamond Bar. The data, in Table 3-5, indicates that without Tonner Canyon, the City will have traffic conditions that are unbearable. With Tonner Canyon Road, the traffic conditions will improve for the residents on Diamond Bar Blvd. and Grand Avenue. Todd Chavers pointed out that, . as the document stands now, we have precluded ever opening up May 41 1992 Page 11 Tonner Canyon. We have to be cautious how we frame this, philosophically, with what we really mean, and what we will accept. C/Meyer inquired why the TTC was never charged with holding a public hearing process to review the original proposal prepared by the GPAC. The Parks and Recreation Commission held hearings on the Plan for Resource Management. Since this is an important element that has to ducktail very closely with the Land Use Element, he stated that he would feel more comfortable if there was a recommendation from the TTC regarding the Circulation Element. He is also uncomfortable with reviewing the Circulation Element without having the Land Use Element with it. CD/DeStefano explained that, to his understanding, the TTC has had an opportunity to participate in shaping the direction of this particular element. The TTC, around the end of. 1990, began some. discussion regarding the upcoming contract with a consultant for preparation of this element, which ultimately led to ' a conclusion of hiring DKS & Associates. The TTC commented on the document, following a presentation given by Kathy Higley, of DKS. The documents were. changed in order to reflect the philosophies of the TTC,. and then forwarded to the GPAC. The GPAC, in it's present state, has a different philosophical bent on the quality of life in Diamond Bar. The GPAC is not interested in improving the circulation network because they feel there is a greater benefit restricting traffic. The TTC feels we should try to provide a balance of transportation improvements that service not only Diamond Bar, in the most positive way, but service the regional needs of the circulation networks. He stated that he does not know why the TTC did not hold public hearings. However, based upon the minutes of their meetings, it seems clear that they have had an opportunity to participate and to promote their specific beliefs. City management requested that the GPAC be allowed to make their recommendations to the Planning Commission and the City Council. It is the GPAC's recommendations that are being promoted. Staff has tried to indicate where the TTC and the Parks and Recreation Commission has had differences of opinions. It is before the Planning Commission to decide how to proceed with the document before them. C/Grothe, noting that the Commission has received the opinions of the GPAC and the TTC, proposed that May 4, 1992 Page 12 it would be appropriate for the Commission to first come up with a consensus of the major goals, and then develop a sub -committee, made up of 2 representatives for the Planning Commission and the TTC, and City staff, to edit the document line by line, to be brought back to the Commission for final review. Chair /Flamenbaum, unsure if he understands the data in the existing conditions as presented, questioned if the commission is in the position to make philosophical decisions. John Beke explained that the TTC never intended to review the document line by line. The TTC has taken a very positive position on Tonner Canyon, as is indicated in their "White Paper", and has stated that Tonner Canyon should be preserved in some manner, shape, or form, in the General Plan. The TTC can also come up with an agreed upon position regarding Sunset Crossing. Todd Chavers stated that, as an individual, he would support -the suggestion to .-form a sub- committee. There is the technical expertise, in the TTC, that would be beneficial in the Planning Commission's review. C/Li indicated that he concurs with C/Grothe's suggestion. VC/MacBride stated that he is disturbed that the thoughts of the TTC was not formulated on paper. He suggested that the Planning Commission and the TTC write down what goals, objectives, and strategies should be' in the document, and that anything in the document that ..is unconstitutional and generic in nature be deleted. The Planning Commission can - then review it in this simple format. C/Meyer, noting that there are two totally divergent views before the Commission, stated that after two and half years of gathering public input to create a draft document that is to go before the Planning Commission, there should have been some sort of consensus from the commissions and committees working for the City. Chair/Flamenbaum indicated that it has been suggested, by staff, that the TTC and the Planning Commission individually write down their comments during the week for a joint study session next Monday. May 4, 1992 Page 13 C/Grothe, pointing out that Commission is charged with getting the points of view and making a decision, stated that he feels that the GPAC and the TTCIS points of views have been adequately presented. He concurred that somebody from the TTC analyze the facts and figure� of the should anz Commission is document, but that the Planning, charged with the general philosophy, and the goals and objectives. C/Meyer stated that there are three documents before the commission: the General Plan, the MEI, and the EIR. The document contains facts and figures, and data that is critical. Motion was made by Chair/ Fla-menbaum, seconded by c/Meyer and CARRIED.to hold a joint study session 6:00 P.m-, Monday, May 11, 1992, with the TTC, to analyze the data. L i a n d AYES: COMMISSIONERS: M e y e r, nbaum. Chair/Flame NOES: COMMISSIONERS: Grothe and VC/MacBride. ABSTAIN: COMMISSIONERS: None. Lloyd Zola stated that the following are the issues raised tonight: Tonner Canyon; the issue of sunset Crossing and Beaverhead; a concern of showing collector roadways which may function as local streets; identifying an access to the High School; mention to the 60/57 interchange; and a comment that there are a series of inconsistencies in the document. He noted that to have a successful workshop, the TTC should identify those elements that are believed to be inconsistent. CD/DeStefano suggested that the chairmansr of each Commission, communicate with each other and decide on the appropriate agenda for Monday's meeting. The Commission concurred. VC/MacBride, referring to the Plan For physical Mobility, page A-1, first sentence of the second paragraph, stated that the sentence could be written the following three different Ways to correspond with the varying opinions stated: in it's original form, "The focus Of this plan is the identification and evaluation of local circulation needs of the City of Diamond Bar, balancing needs with regional demands and mandates."; or as, "The focus of this plan is the identification and evaluation of local circulation needs of the City of Diamond Bar.", or "The focus of this plan .... as a counterbalance to regional demands and mandates-". it is this philosophical issue that May 4, 1992 Page 14 needs to be resolved. furthermore, the document contains statistical data that is difficult to analyze. It should notbeastatistical document. The document ought to be so broad in vision, that others can come and apply data to it. C/Meyer stated that the data should not be ignored. The traffic generation numbers don't necessarily change, but can be interpreted differently in terms of it's acceptability. VC/MacBride, in regards to safety and traffic facility considerations, pointed out that Sunset Crossing, which is part of the truck route up to the entry lane of the 57 freeway, with 12 driveways within 600 feet, does not have a raised median, like the rest of Diamond Bar. C/Meyer suggested that if the Commission gets to a better comfort level with the Circulation Element, it can be folded in with the Land Use Element, and the Commission could still conclude within the time schedule. Motion was made by VC/MacBride, seconded by C/Meyer and CARRIED UNANIMOUSLY to close this portion of the plan until Monday, May 11, 1992 at 6:00 p.m. ADJOURNMENT: Motion was made by C/Meyer, seconded by C/Li and CARRIED UNANIMOUSLY to adjourn the meeting at 10:52 p.m. to Monday, May 11, 1992 at 6:00 p.m. Respectively, James DeStefano Secretary Attest: Bruce Flamenbaum Chairman CITY OF DIAMOND BAR MINUTES OF THE PLANNING COMMISSION MAY 18, 1992 CALL TO ORDER: Chairman Flamenbaum called the meeting to order at 6:12 p.m. at the South Coast Air Quality Management District Building, 21865 E. Copley Drive, Diamond Bar, California. ROLL CALL: Commissioners: Meyer, Li, Grothe, Vice Chairman MacBride, and Chairman Flamenbaum. Also present were Community Development Director James DeStefano, Associate Planner Rob Searcy, Planning Technician Ann Lungu, Lloyd Zola, from the Planning Network, and Contract Secretary Liz Myers. CONTINUED CD/DeStefano stated that the City Council's public PUBLIC HEARING: hearing for the draft General Plan is scheduled to begin June 9, 1992. The Planning Commission may Draft General want to schedule additional meetings in order to Plan: Housing complete the review of the General Plan by that date. Tonight's review will be on the Housing and Land Use Element. The Commission will need to have a discussion on the Land Use issue so that staff is able to finalize the goals and objectives that will be publicized in the Highlander. C/Meyer requested staff to clarify the comments made by the Housing of Community Development department (HCD) * regarding the draft Housing Element. The Public Hearing was declared opened. The Public Hearing was declared closed. CD/DeStefano stated that, in his opinion, the Housing Element is the only element in the General Plan that is written to respond to the mandates of State Law, and the guidelines of the HCD. HCD is statutorily responsible for reviewing draft Housing Elements prepared by cities. They responded to our draft Housing Element, which we submitted July/August of 1991, like they do to most communities, with a sense of displeasure. The HCD commented that our Housing Element needs to set, forth a more specific program to respond to the State wide housing issue. The State is attempting to implement state-wide housing needs and to require each local city to devise programs to deal with their fair share of that state-wide housing need. The HCD basically wants Diamond Bar to increase density, rezone properties, that are not now high densities, into high densities, and reduce or eliminate the bureaucratic process to allow housing to be developed expeditiously, and with less costs associated with fees and permits. The GPAC reviewed all the comments made by HCD, and disagreed with most of it. They were not May 18, 1992 Page 2 particularly interested in increasing densities or providing low to moderate income housing. Chair/ Flamenbaum inquired if HCD would be content if the city simply increased the densities in all available land within the Plan. CD/DeStefano explained that the HCD would prefer that much more of the implementation aspect be in the document. They would want the City to identify means that would ensure that the higher densities would bring and maintain lower income housing. C/Meyer noted that the HCD would want the implementation strategy in the document because that is the only document by law that they have the authority to review and comment. DCA/Curley, in response to C/Lils inquiry, explained that HCD is a recommending body, that reviews the document subjectively. Since any interested party could challenge the General Plan, particularly the Housing Element, having HCD's approval adds to the weight that the City's document is satisfactory. How we respond to their comments is also subjective on our part. The key is how good faith is the city's action. CD/DeStefano, in response to C/Meyerl.s inquiry regarding the regional housing allocation number, stated that he feels that the allocation of 450 units of low to moderate income housing is very reasonable, and if we chose to, very achievable. C/Meyer stated his concern that the density bonuses, granted to developers by State housing law, would substantially increase the density established in the General Plan. CD/DeStefano stated that he would suggest that the Commission and the City Council establish either a range or some type of upper limit density that would be acceptable. Incentives could be created to get the developer to work towards achieving the maximum density established. In exchange we get affordable housing or some type of additional need that the City has. In response to Chair/Flamenbaum, CD/Destefano explained that, since HCD wants cities to generally identify sites, the Tres Hermanos site can be identified, in the document, as a candidate for up to 11x11 amount of units, and then that can be put May 18, 1992 Page 3 into the specific plan discussion for Tres Hermanos. C/Grothe stated that an attempt should be made to satisfy the State requirements, however, the residents of Diamond Bar should be kept happy first, and the character of Diamond Bar maintained. The document should indicate that the percentage of low to moderate housing should be met in Tres Hermanos and other developed areas, but in developments where it can't be met, a fee should be collected to buy land to build the housing at a later date. VC/MacBride suggested that staff be directed to determine what extent there have been changes in the document, correlate those changes with the Planning Commission's philosophy and critiques, and then determine how far along we are in terms of data and mandates. Philosophically, we must meet two massive criterias: take care of the housing needs; and protect this City from the mandates of the State. He suggested that the first paragraph, in the Introduction, be amended to read, "The purpose of, the housing section of -the--Plan -for Community Development is: 1. To identify local housing problems and needs; 2. Relate these needs to the City's proportionate * share of the total projected need for housing in the region as determined by State law; and 3. Identify measures necessary to mitigate and alleviate these needs and problems for all economic segments of the community." C/Li stated that he would like a statement included informing the public that there is money involved, in the future phases, if we don't meet State requirements. The commission concurred that the first paragraph should be amended as suggested by VC/MacBride. They concurred to review of the Housing Element page by page. Chair/Flamenbaum suggested that footnote 1, on the bottom of page 37, be deleted. VC/MacBride stated that the (s) in "statement", in the second bullet on page 37, should be deleted. Chair/ Flamenbaum requested that the statement on page 39, section G., Citizen Participation, properly define that the appointed citizen May 18, 1992 Page 4 committee is the. General Plan Advisory Committee (GPAC) . VC/MacBride suggested the following changes: page 39, bullet one, delete the word "shall" page 39, bullet three, delete the third word "any"; page 39, delete the last sentence; page 40, first line, place a period following the word "stock"; and page 40, line nine, delete the statement, "obvious deviation from plumbing". Chair/Flamenbaum requested that the names "Flores" and "Tarrago" be deleted from page 41, section c. Substandard Units. C/Meyer suggested that the last sentence in section c., Substandard units, page 41, be deleted, and that the word "healthy" be deleted from page 41, section d. Housing Assistance Needs, second paragraph, fourth line. Chair/Flamenbaum recessed the meeting at 7:07 p.m. The meeting was reconvened in the AQMD Auditorium at 7:18 p.m. VC/MacBride suggested the following: second paragraph, third line, page 42, of Household Characteristics, delete the word "the" following the word "similar"; page 43, second paragraph, delete the second sentence; page 43, third paragraph, second line, place a comma following the word "component" and "age", and replace "who" with "which"; page 44, first paragraph, first line, delete the word "also"; and page 44, first paragraph, the elements in the paragraph need to reflect the categories that follow. Chair/Flamenbaum requested that the data in table 1-3, page 43, be amended to reflect the 1990 census, and the paragraphs on page 44 and page 45 should also reflect the 1990 census, if available. C/Meyer suggested that the first bullet, third line, on page 44, delete the statement "subtle, or not so subtle". He noted that, in subsection a. Handicapped Households, last paragraph, the County's percentage rate is used, yet, earlier in the document we stated that we are dissimilar to the County's characteristics. CD/DeStefano explained that it was put in to respond to a question for the State's purposes. May la, 1992 Page 5 The information will be updated when the 1990 census data is available. C/Meyer suggested that the word "Unfortunately" be deleted from page 45, second to the last paragraph, fifth line. VC/MacBride suggested that the second sentence on page 46, last paragraph, be deleted. Lloyd Zola explained that the Housing Element guidelines states that opportunities for energy conservation must be discussed. He suggested that the sentence be rewritten to state, "There is an opportunity to use alternative energy sources and to. reduce energy consumption through the implementation of conservation measures.". The Commission concurred. VC/MacBride made the following suggestions: page 47, reword the first sentence to read, "Relative to addressing Diamond Bar's housing needs, consider proportionate share of low and moderate income housing."; delete the last sentence just before the three bullets on page 47; - replace the word "indicates" with "contains", in the first sentence of the last paragraph on page 47; and delete the statement, "has the largest amount of vacant land", in the last paragraph, fifth line, page 47.. Chair/Flamenbaum stated that the statement, "Bramalea property", on page 47, fifth line of the last paragraph, be deleted, and then properly identified. Lloyd Zola, in response to C/Meyer's concern that the wording in the first paragraph, page 48, is awkward, suggested that it be rewritten to state, "The land available within the current City limits for general residential development could yield an additional 3,000 units. However, land within the current City limits could support up to 5,500 additional housing units if development density was to be increased.". The remainder of the paragraph can remain as it is written. The density numbers will be recalculated upon the final approval from the City Council. CD/DeStefano, in response to Chair/Flamenbaum's inquiry if the densities, described on page 48 and 49, are standard, explained that each of the land use categories reflect Diamond Bar's densities. Since many of the cities have their own acronyms, classifications, and definitions, it is not May 18, 1992 Page 6 possible to set a standard for the purpose of consistency. The density numbers indicated are the densities recommended by GPAC. Lloyd Zola explained that the residential land use categories on page 48 and 49 are the categories recommended in the land use portion of the General Plan. He suggested that this discussion wait until the land use review. The Planning Commission concurred. VC/MacBride suggested that the second sentence, on page 49, section 2. Government Constraints, be rewritten to properly reflect, "Increasing demand to meet State mandates, with decreasing commitments to housing... 11. C/Li suggested that the fourth paragraph, first line, delete the word "very", and the statement "moderate to severe". C/Grothe suggested that the third paragraph, section d. Fees, delete all the "etc". C/Meyer-made-the following suggestions: it should be noted that a lot of the statements on page 50 conflict with the conclusions of density per 1 unit for every 2 1/2 acres; paragraph one, page 51, delete the last sentence; page 52, second to the last line, should properly indicate Table 6; and verify the data indicated in Table 1-6 on page 53. VC/MacBride made the following suggestions: place a comma following the word "financing" in the first paragraph, on page 53; page 54, fifth paragraph, delete "under contract with the City" and change the numbers 112-311 with 111-211. Chair/ Flamenbaum stated that the name "Barbara Mowrey" should be deleted form the fifth paragraph on page 54. C/Meyer suggested that the Government Code Section should be inserted in the section J. Progress Report on page 54. The word "However" should be deleted from page 55, second paragraph, first line. Chair/Flamenbaum suggested that the Land Use Element be discussed prior to discussing the goals, objectives, and implementationstrategies of the Housing Element. The Commission concurred. Land Use CD/DeStefano stated that the Land Use plan Element basically provides the City's intentions for the May 18, 1992 page 7 development, redevelopment, growth, and preservation of its public and private property. The element should chart a course for the vision of our City. The GPAC has presented an overall land use plan that reflects a lowering of density and development intensity. As the document is crafted, there will need to be a variety of zone changes, essentially down zoning, in order to make the zoning consistent to the General Plan. The GPAC reviewed all remaining open/undeveloped land within the City, and recommended that all remaining open/undeveloped land be down zoned to the Open Space classification, regardless of the present zoning. This document must be consistent with all the other elements within the General Plan. The plan before the Planning Commission contain the recommendations of GPAC as of February 29, 1992. There were some changes made at GPAC's last meeting held in April of 1992. Additionally, there are approximately,a dozen requests, for changes, from developers, as well as changes recommended by staff. It is recommended that the Commission open the public hearing, accept testimony, and then review the element based upon the broad goals and objectives presented. Chair/Flamenbaum read the list of the correspondences received by the City: Fred P. Janz, of Fred Janz Real Estate Investments, dated April 24, 1992; Eric R. Stone, dated July 15, 1991; Marc Perrin, of the Bramalea California Inc., dated May 4, 1992; Howard Mitzman, of the Bramalea California Inc., dated Sept. 25, 1991; Frank Arciero, Jr., of Arciero Builders, dated Sept. 11, 1991; Frank Arciero, Jr., of Arciero Builders, dated Sept. 23, 1991; Jerry K. Yeh, dated Jan. 21, 1992; Daniel Buffington, dated July 11, 1991; Manuel E. Nunes, dated Sept. 13, 1991; Thomas H. Tice, of T.H. Tice and Associates, dated May 4, 1992; Thomas H. Tice, dated May 4, 1992, addressed to Jim Gardner of the Diamond Bar Country Estates; Lyman K. Lokken, of TransAmerica Minerals Company, dated Aug. 7, 1991; Warren Dolezal, of DFL Partnership, dated January 7, 1992; Ronald J. Crowley, of R.J. Crowley, dated Sept. 11, 1991. Alice Truax, dated Sept. 4, 1991; Jan C. Dabney, of J.C. Dabney and Associates, dated May 15, 1992; Eric R. Stone, dated May 18, 1992; and Warren Dolezal, dated May 18, 1992. CD/Destefano stated that staff has provided the Commission with the following: a matrix summarizing all of aforementioned requests, as well as a graphic illustrating their location within the May 18, 1992 Page 8 City; a graphic and table outlining the properties that have development restrictions; a graphic summarizing the properties within the community that w6illd require -down -zoning as -a -result of the adoption of the presently configured General Plan; and a reduced copy of the GPAC land use map dated Feb. 29, 1992. Chair/Flamenbaum recessed the meeting at 8:10 p.m. The meeting was reconvened at 8:20 p.m. Chair/ Flamenbaum. presented C/Grothe with a plaque in recognition of dedicated service as planning commission chairman from July of 1991 through April of 1992. The Public Hearing was declared opened. Ben Reiling, President of Zelman Development Co., the developers of the Gateway Corporate Center, in reference to page 1-24, in the Plan for Community Development, requested that bullet five be clarified. He noted that a portion of their property, located on Golden Springs between the Gateway property and the Church property, also known as lot "zero", is presently designated as open space. However, it is a moderate slope that can be graded to create about a 4 acre pad. CD/DeStefano stated that the language, in the fifth bullet on page 1-24, does not properly reflect what GPAC had recommended on April 22, 1992. GPAC I s approved language was: "To ensure residential views, buildings should be stepped down from the southeast side of Gateway Corporate Center to the freeway. building adjacent to the freeway, along Gateway and Bridgegate should have a maximum height of 6 stories. Buildings along Copley and Valley Vista should have a maximum height of 8 stories. Trees natives to the' area should be used to obstruct unsightly views. Maintain the overall FAR at .5.11 Frank Piermarini, residing at 2559 Wagon Train, representing Jerria with Union Wide Developers, in regards to parcel lot #1528, parcel #14, #25 on the open land survey, objected to strategy 1.2.4(a), on page 1-12, of the Plan for Community Development. He noted that The Country exists today as one unit per acre, as is indicated on page 1-3. Furthermore, the term "steep" is ambiguous. Fred Janz, residing at 2683 Shady Ridge, stated that his property located on the southeast corner May 18, 1992 Page 9 of Diamond Bar Blvd. and Brea Canyon has been zoned residential, even though the other three corner lots are commercial. He requested that the property be zoned general commercial. Jan Dabney,' with J.C. Dabney and Associates, located at 671 Brea Canyon Rd., representing Frank Arciero, Jr. and R&P Development Inc., referring to #17 (78 acres) and #31a -e (130 acres), of the open land survey map, stated that their property is being down zoned, and the developers are asking that the property be left as is. Additionally, R&P Development is asking that the 130 acres have a PD designation, on the portion of the 78 acres, for residential and commercial development. Chair/Flamenbaum inquired if there is construction prohibited recorded as part of the map. Jan Dabney explained that it was not uncommon for the county to put building restrictions, or some kind of covenants, on the property so that the property would have to come back, before the supervisors, before any future.de ' velopment could be done. We would request that parcel j17 be zoned RR, and that parcel #31 be zoned residential, allowing a large park, and the remaining 29 acres be zoned commercial. CD/DeStefano, in response to Chair/Flamenbaum, stated that the bulk of parcels #17 & #31a -e have development restrictions placed upon the recorded subdivision map. The zoning for these properties allow for substantial development rights. Therefore, the zoning is not at all consistent with the recorded maps. The language on the recorded maps requires the developer to come back to the City, request that the restrictive language be removed, and that development rights be granted upon the property. This opens up the door for substantial negotiation between the City and the developer. Jan Dabney explained that the restriction on the property is not a restriction in zoning, it is a restriction in consideration. The property was zoned as R 10,000 with the County. In response to VC/MacBride, he explained that both developers, through some guidance by, the City, have been attempting to work with the school district to resolve the issues that the city has with the school 'district, and to allow these developments to proceed in a relatively timely manner. They are willing to spend the money to put in commercial to May 18, 1992 Page 10 get the tax increment into the community to offset and mitigate the financial problems that already exists in the City. Eric Stone, residing at 24401 Darrin Dr., referring to #4 on the open land survey, stated that the proposed OS zoning is inconsistent with GPAC's final resolve on that particular piece of property. He noted that the letter he presented to the Commission addresses a development concept for that lot. CD/DeStefano, confirming Mr. Stonel.s comment, stated that the map is dated February 29th, and GPAC did make a change at their April 22nd meeting. GPAC's final recommendation, on that specific parcel, was to retain the existing zoning classification, which would permit about 4 units per acre. C/Li suggested that staff to develop a summary table to cross reference these lots. ..Tom Tice, 17611 Yorba.Linda .Blvd.,, Yorba Linda, referring to #7, on the land use designation request, #25 on the open land survey, parcel #13 and #26, and a portion of #79 in the down zoning study, requested a consideration to the RR land use rather than the RH. From a zoning standpoint, R-1 40,000 would be more appropriate. Frank Piermarini, referring to parcel #18, item #55 in the down zoning study, the Diamond Knoll Estates, pointed out that it should not be zoned RH because it was approved by the City, in January of 1991, as RR, 1 unit per acre. He also noted that a portion of The Country is zoned R-1 20,000. CD/DeStefano stated that The Country is comprised of four different zoning classifications: 50% to 60% is zoned R-1 40,000 located mostly in the NE portion; 30 to 35% is zoned R-1 20,000, located mostly in the SW portion; about 50 acres are zoned A-1 or A-2; and there are some properties on the fringe of the formal Country area, but not part of it, with egress and ingress rights, that are zoned R-1 8,000. Warren Dolezal, general partner of the D.F.L. Partnership, referring to 2 1/2 'acres zoned R-1 8,000, located on the north side of the extension of Steeplechase Dr., and adjacent to Las Brisas property, #9 on the land use designation request, stated that the master map displayed at City Hall May 18, 1992 Page 11 properly indicates the property as being 2 1/2 acres, and designates it as RL, however, the maps being sold to the public designates it as RR, and indicates that the property is 4 acres. He requested that it be designated RL. CD/DeStefano, confirming the discrepancy between the two maps, noted that regardless of what the map says, it is incumbent upon the Commission to provide a recommendation to the City Council on this issue. Marc Perrin, with Bramalea California, Inc., 1 Park Plaza, Suite 1100, Irvine, stated that item #13, of the open land survey, lots 4, 5, and 7 of Tract Map #31479, are improperly listed as having prohibited construction. It should be listed as restricted construction. He also pointed out that land previously restricted by LA County, now comes under the discretion of Diamond Bar, and the City can allow development on the land. Therefore, it is suggested that the statement in the Land Use Element, page 1-28, Objective 1.5.1.b, "It is the City's policy not to renegotiate these prior commitments.", be removed, and the decision, on whether restrictions should remain or not, should be made at a later date, preferably in the processing stage of the final Tract Map. Lloyd Zola explained that the LA County zoning code, adopted by the City, has density control development which allowed cluster units in exchange for open space. Unfortunately, since the County's records are unclear, it is difficult to determine if the open space restriction on the map is in exchange for density elsewhere, or if it was land just set aside. The decision as to how these open space land is designated on the map, and if the City chooses to renegotiate, is a policy issue. The GPAC chose to take all these restrictions and call them open space. Designating it as open space on the map does not restrict the City to renegotiate. In response to C/Meyer's inquiry, he confirmed that regardless of what category the General Plan designates the land, a building permit would still not be issued until the restriction is dealt with. Gary Neely stated that, if the Commission desires to review the history of some of these developments, as discussed by the Municipal Advisory Committee (MAC), the files were given to the Historical Society. He stated his support for May 180 1992 Page 12 Mr. Reiling's and Mr. Stone's requests for modification. Chair/ Flamenbaum inquired if anyone in the audience wishes to address the Commission on any areas on the down zoning map that has not been previously addressed by letter or testimony. CD/DeStefano explained that there is an existing set of zoning classifications for all properties within the City. Existing land uses may be different than existing zoning, and the proposed General Plan may be different from existing zoning and/or different from existing land use. Therefore, in order for the proposed General Plan to be consistent with zoning, the areas represented on the map must be down zoned. The Public Hearing was declared closed. C/Meyer questioned the purpose behind down zoning fully developed residential subdivisions, since nothing can be changed. Talking about down zoning can generate misunderstanding from the public. He suggested that there be a different way of doing it. C/Grothe stated that there is benefit in having some consistent zoning throughout the community. It would retain a similar character throughout the community as large parcels get annexed into the community. CD/DeStefano explained that, as an exercise, it was necessary to do a study to determine how many areas would be affected by the proposed General Plan, which is basically designed to prevent higher densities from what presently exists. The Commission could change the designation from RL to RLM, or increase the density within the RL to the 5 to 6 unit per acre range. It is a major policy issue for the Commission to recommend to the City Council. C/Grothe pointed out that without consistent zoning, it is possible for an assemblage of very large lots, zoned with very small minimum lot sizes, to be replaced by a larger number of homes, or condominiums. This is very disruptive in older communities. Chair/Flamenbaum concurred. DCA/Curley, in response to Chair/Flamenbaum's inquiry if down zoning could take away a property owners right to develop, explained r, that changing May 18, 1992 Page 13 land use designation and the zoning, in the General Plan, does not preclude the property owner from coming back in and seeking a change of zone to meet their development needs or expectations. The General Plan public hearings are being noticed consistent with legal requirement. In the future, when the consistency zoning change happens, there will be further notice to the public. Lloyd Zola summarized the different issues: the general proposition that we will identify existing developed properties, in the General Plan at their existing densities; land with existing land use restrictions are shown as open space; and the general lowering of the densities, and intensities, of potential multi family uses, or elimination of multi family zoning. C/Grothe, in concurrence with the concept of making land use match zoning, stated that he sees the benefit of keeping the community in it's intact form. If the community wants to make a change in it's zoning, the whole community gets involved rather than. just those neighbors .in the -500 foot mailing radius of some little development site. Chair/Flamenbaum recessed the meeting at 10:07 p.m. The meeting was reconvened at 10:24 p.m. CD/DeStefano suggested that the Commission may wish to schedule additional meeting dates in order to meet the scheduled June 1st date of completing the review of the draft General Plan. The Commission concurred to meet on the following days: Thursday, May 21st; Tuesday, May 26th; Thursday, May 28th; and Monday June 1st. Chair/Flamenbaum, returning back to the discussion regarding the down zoning map, stated that his purpose of discussing the map was to eliminate a large portion of the GPAC's recommendation, in the down zoning map; to make Diamond Bar's General Plan consistent with todays land usage. C/Meyer, in response to the suggestion to zone school property as "Schools", stated that because schools do sell off their property, there is no harm created by keeping an underlying zone of R-1, with a public utility use on it, or zoning it POL. C/Meyer recommended that the Land Use designation reflect the existing zoning, as opposed to GPAC's recommendation of having the Land Use designation dy 18, 1992 Page 14 reflect existing development. VC/MacBride and C/Li concurred. Chair/Flam6nbaum recommended that the specific designations to the areas defined as Tres Hermanos and Tonner Canyon be deleted from the map, and be made part of a specific plan. The Commission concurred. Lloyd Zola stated that, the limitation on taking out any reference to the density of development, is the State law requiring that the General Plan specify the intensity of use on parcels. CD/DeStefano stated that staff, Lloyd Zola, and the City Attorney will work out specific language on the two specific plan candidates. Lloyd Zola, in reference to C/Meyer's suggestion regarding the land use map, pointed out that there are situations where parcels are zoned manufacturing, but in the current community plan it is commercial, and situations where condominiums are located in commercial zones. C/Meyer stated that he was referring to existing residentially developed property. CD/DeStefano suggested that those areas designated RL, that would be required to undertake a down zoning, be designated RLM, which is consistent with the present zoning, allowing 6 units per acre. The Commission concurred. C/Meyer suggested that those land use categories, with potential development that surround The Country, and other large tracts of land, be debated on their merit. The commission concurred. C/Grothe suggested that all public facilities remain designated as Public Facility on the map. The Commission concurred. C/Meyer suggested that The Country's land use designation be dealt with as a specific issue. The Commission concurred. ADJOURNMENT: Motion was made by C/Meyer, seconded by C/Grothe and CARRIED UNANIMOUSLY to adjourn the meeting at 10:58 p.m. to be continued to Thursday, May 21, 1992 at 7:00 p.m. May 18, 1992 Page 15 Respectively, James DeStefano Secretary Attest: Bruce Flamenbaum chairman CITY.OF DIAMOND BAR MINUTES OF THE PLANNING COMMISSION MAY 21, 1992 CALL TO ORDER: The meeting was called to order at 7:07 p.m at the South Coast Air Quality Management District Room CC -2, 21865 E. Copley Drive, Diamond Bar, California. ROLL CALL: Commissioners: Meyer, Li, Grothe, Vice Chairman MacBride, and Chairman Flamenbaum. Also present were Community Development Director James DeStefano, Associate Planner Rob Searcy, and Candid O'Neil, of the Planning Network. CONTINUED Chair/ Flamenbaum stated that the Commission will PUBLIC HEARING: review the revisions made to the Plan for Public Health and *Safety:Noise, as was recommended by the Noise Element Commission April 27, 1992. VC/MacBride suggested that the word "Pitch" be deleted from the second bullet on page 1. C/Grothe suggested that the term be left as Frequency/Pitch, but that the following words "Frequency is", be deleted. Candid O'Neil explained that pitch is the commonly used word, and .frequency is - the scientific term. If the Commission would like to change it, as suggested by C/Grothe, then it would need to be done consistently throughout the other bullets. The commission concurred. C/Meyer stated that there needs to be a definition section to identify not only the terms on page 2, but the various terminology used throughout the element. VC/MacBride requested that the letter I'm" in "march", first line, second paragraph, be capitalized, and the words, "very important", be deleted. Chair/Flamenbaum stated that the Commission is assuming that the data in Tables 1, 2 and 3, as presented in the document, are accurately reflected. C/Meyer suggested that the abbreviations, on page 7, activity category D, table 2, be specifically spelled out, and dated. CD/DeStefano, in response to VC/MacBride, stated that there is an Appendix for each Element, which can be found in the MEA, the Existing Setting, and the General Plan. May 21, 1992 Page 2 VC/MacBride, referring to Figure G-4, page 11, questioning if the area of Sunset Crossing, westerly of the freeway should be shaded, stated that_he_finds it hard to believe that the area is experiencing a background noise level of over 60 dba, similar to Diamond Bar Boulevard. Candid O'Neil explained that the graph indicates that the areas are potentially experiencing over 60 dba, and that some shaded areas may experience a higher noise level than other shaded areas. The study was based on the existing conditions on those streets, and, not all streets were included in the study. C/Li, noting that the consultants used FHWA Analysis based on existing Average Daily Traffic, as footnoted on page 13, Table 4, questioned if DKS actually conducted a sound study. VC/MacBride stated that he is not convinced that the sound study was made most of the way west of the freeway. He informed the Commission that three people from the Sunset Crossing area have communicated to him that they feel the map is a set up in order to have a truck route through the neighborhood. He questioned if the study was conducted at the off ramp point, or midway between the YMCA and the off ramp. Chair/Flamenbaum noted that, regardless of how many residents speak out, the only way to refute the data is with data. He requested that staff check the location of where the traffic study was done. If it was done at the off ramp, then augment the study at the other end of Sunset Crossing. Take the shading out of the map, if appropriate. C/Li suggested that there be an additional footnote, on page 13, Table 4, to reflect that the ADT source is to be found in the traffic report. VC/MacBride suggested that the last sentence, in the last paragraph of subsection 3. Stationary Noise, page 14, be amended to read, "...there are no known significant sources of stationary noise.". The last sentence, in the last paragraph of subsection 4. Local Noise Conditions, page 14, should delete the words "need to". The Commission concurred. C/Meyer stated that the first sentence in subsection 5. Sensitive Receptors, page 15, should not use the word "discourage" but rather indicate May 21, 1992 Page 3 that incompatible noise intrusive land uses are carefully studied to affect mitigation. The Commission concurred. C/Li suggested that the first paragraph, on page 15, properly reflect that the Figure number is 11- 1-5. All the figures, within the element, should be properly designated. VC/MacBride suggested adding the clause, "and through formal interaction the transportation corridor representatives, who's facilities are located within the City, with the purpose of constructing sound barriers,' such as walls along the right of ways, where the Ln exceeds acceptable limits compatible with adjacent receptors", to the second sentence of the last paragraph on page 15. C/Meyer, noting that the paragraph accurately describes the existing condition, suggested that such a statement may be more appropriately placed in the Goal section. The commission concurred. Chair/Flamenbaum suggested that Figure 11-G-5 note the potential site for an educational facility in the Tres Hermanos area. The Commission concurred. C/Grothe suggested that the map also be dated in case the names of the facilities get changed. The Commission concurred. AP/Searcy noted that number 15, Figure 11-G-5, be amended to read Mount Calvary School. C/Meyer suggested that the map be checked for accuracy to assure that all the schools are included, with the proper names, and the proper location. The Commission concurred. Chair/Flamenbaum, referring to page 18, Figure 11- G-7, questioned if footnote 4 is properly placed in the Existing Setting, or if it should be placed in the Goals section. Candid O'Neil explained that the 45 CNEL is a standard that is recommended by the State, and is neither a present standard nor a future standard. VC/MacBride suggested that the statement, "although there will be ...are not considered significant.", be deleted from the last paragraph on page 19. The Commission concurred. May 21, 1992 Page 4 Chair/Flamenbaum stated that Table 5, page 20, needs to cite the future traffic study conditions, projected to the year 2010. CD/DeStefano stated that he put the definition discussion in the Existing Setting section, on page 22. Strategy 1.10.2 - Change 60 db CNEL to 65 db CNEL. Strategy 1.10.3 - Move the clause in parenthesis after the word "projects". Strategy 1.10.5 - Replace "or exceed" to "reached". Strategy 1.10.6 - Delete the word "annual". C/Meyer suggested that the Strategy be reworded to state, "As part of the General Plan review, determine: 1. whether traffic levels have increased; 2. if new stationary noise generation sources have been created; and 3. if the noise contour map needs to be updated.". The Commission concurred. Strategy 1.10.7 - Replace "proposed" with "identified". Gary Neely, residing at 344 Canoe Cove, noting that Golden Springs Road cannot run west of Sunset Crossing Road, as indicated on page 12, of the Noise Element, suggested that it be changed appropriately. Chair/Flamenbaum, in response to Gary Neely's concern, suggested that the last paragraph, on page 19, of the Noise Element, be deleted. The Commission concurred. Motion was made by C/Grothe, seconded VC/MacBride and CARRIED UNANIMOUSLY to direct staff to prepare the final draft of the Plan for Public Health and Safety: Noise, as amended. Plan For CD/DeStefano distributed the Plan For Physical Physical Mobility to the Commission. He suggested that the Mobility Commission may wish to review the Minutes, on the Plan for Physical Mobility, in conjunction with these goals and policies changes that have been provided by the consultants, and begin discussion on the Housing Element at this time. Housing The Commission concurred to begin review of the Goals, Objectives, and Implementation Strategies of the Housing Element. May 21, 1992 Page 5 DCA/Curley, in regards to the specific comments by the Housing of Community Development (HDC) to the Housing Element, stated that it is preferred that the philosophy of the General Plan be responsive to the HCD concerns. If there is a conscious decision to disregard the HDC's comments, then a rationale must be provided explaining why we -are being nonresponsive. C/Meyer suggested that the word "Residents" be deleted from the overall goal to avoid being discriminatory. The Commission concurred. objective 1.1 Delete the words, "a reasonable portion of the", and, "in the region". Strategy 1.1.1 Delete the words "large scale", "that", and "be provided". Chair/Flamenbaum, in regards to Strategy 1.1.2, which had been deleted, stated that he likes the idea of encouraging the mixed use concept. Strategy 1.1.2 - The Commission concurred to reword the strategy to read, "Encourage large scale commercial/office developments to provide a residential component as part of an overall mixed use concept, where feasible." Strategy 1.1.3 Delete the words, 11 included in the Diamond Bar Development Code", and replace the first "unreasonably" with "needlessly". CD/DeStefano, in response to DCA/Curley's concern that there should be mention of how and when the City will accomplish Strategy 1.1.3, suggested that Strategy 1.1.4 be reworded to state, "Prepare a public information packet summarizing the City's zoning and development requirements for residential construction.". The Commission concurred. Strategy 1.1.4 - Reword as previously indicated by CD/DeStefano. Strategy 1. 1. 5 - Delete the clause "(next five years)", replace the word, "produce an annual report which identifies the revenues that are available" with "produce required reports to May 21, 1992 Page 6 accomplish", and delete "and which sets production 'goals". Strategy 1.1.6 Delete the words "quality,", "the development of", and "on". CD/DeStef ano that the deleted portion, of Strategy 1.1.7, should be put back in, except for the phrase "discretionary and nondiscretionary residential". In response to C/Li, he explained that the third bullet, in Strategy 1.1.7, is requesting that those agencies hold a joint public hearing on the EIR in order to expedite the process. Strategy 1.1.7 - Strategy 1.1.8 - Strategy 1.1.9 - Strategy 1.1.10 The Commission concurred to put the strategy back in, as indicated by CD/DeStefano. Delete. Reword the statement to read, "Encourage use of innovative site development and construction materials and techniques.". Add the word "or" before "make 16 percent...", and change . the second line to read, "providing a mini -mum of 25 percent...". Chair/ Flamenbaum suggested. that Strategy 1.1.11 delete the words "of large residential". CD/DeStefano explained that, because HDC had requested further classification, GPAC requested the first two bullets be deleted. However, the consultants suggested that the bullets be revised to read, "Developments with less than 250 units will be able to pay an in lieu affordable housing fee, assessed per unit, to help provide affordable housing in other locations, within the City, if they cannot be reasonably provided on site.", and also "Developments with more than 250 units will be required to provide at least 10 percent of their units to meet current affordability guidelines, or pay the in lieu fee.". Chair/Flamenbaum suggested that it read, "Developments of residential units are to provide a mix of dwelling units types.". It is unlikely that a 250 unit would ever be developed within the City, and that number should be lowered. Developers should be encouraged to put in affordable smaller homes so our young people can live in the same community as their parents, and local folks can afford to retire into these smaller homes. May 21, 1992 Page 7 C/Meyer stated that low cost housing should be equated with financial assistance, rather than with the quality of construction. Strategy 1.1-11 Delete the words "of large residential". Bullet one: The Commission concurred to reword bullet one to read, "Developments of 5 units or more shall pay an in lieu affordable housing fee, assessed per unit, to help provide affordable housing in other locations, within the City, if they . cannot be reasonably provided on site-" Bullet two: The Commission concurred that 10% of all new housing is to be affordable units, is an acceptable standard. Bullet three: The Commission concurred to reword it to read, "Establish parking requirements for senior citizen housing to a level consistent with the residents transportation needs.". The sentence following bullet three is to be deleted. Strategy 1.1.12 - Add to the first sentence, "...and other viable economic alternatives.". Goal 2 - The Commission concurred to delete the word "gender". objective 2.1 - Add the words, "very low," before "low". Strategy.2.1.1a. Change the word "participate" to "provide". and add, "...and encourage relocation within the community.", to the end of the sentence. Chair/ Flamenbaum suggested that a new subsection e. should be added indicating a requirement that those houses should always be maintained as low cost/moderate housing. Strategy 2.1.1e. The Commission concurred that staff is to write this subsection as indicated by Chair/Flamenbaum. May 21, 1992 Strategy 2.1.1d. - Delete the word "Annually", and delete the last sentence. Strategy 2.2.1 - Either develop a new strategy 2.2.2 stating "Participate in the Fair Housing Programs" or reverse the strategy numbers. VC/MacBride suggested that, for continuity, Objective 2.3 should include mention of the disabled, and the strategies should include mention of the homeless. Strategy 2.3.2 - Chair/Flamenbaum, that there are an to the disabled, standards for the houses. Delete the word•"rental". suggested that there be mention 11x11 number of housing available as well as the appropriate handicap in those 11x11 number of VC/MacBride noted that Strategy 2.3.1 indicates that housing is to be accessible to the handicap. The Commission concurred. ' CD/DeStefano stated that objective 2.3 should also include large families and other groups in need of affordable housing. The Commission concurred. Chair/ Flamenbaum suggested that there should be a City program that refers individuals to emergency shelters if it is ever needed. The provision should state, "The City shall provide information regarding emergency shelter availability.,,. CD/DeStefano stated that he will insert "City" and "Housing Development Funds" just above "Private Organization", on page 61, and include information regarding emergency shelters, as well. C/Li suggested that mention of the funding program be included in Objective 3.2. CD/DeStefano stated that the HDC would prefer that the City identify potential location for the development of these kinds of housing. The Housing Element should talk about how the City will pursue affordable housing throughout the community, with these particular areas, and with these policies. Then, the Land Use Element can discuss the locations more specifically in terms of densities. Chair/ Flamenbaum suggested that there be a fourth goal the states, "Identify potential location of May 21, 1992 Page 9 ADJOURNMENT: affordable housing within the City", and then identify those sites, generically. CD/DeStefano stated that the Commission will also need to discuss the issue of determining what the highest density, in the community, should generally be. The GPAC has recommended a maximum density of 12 units per acre. C/Meyer, in reference to the location of the affordable housing, suggested that HDC be told that the affordable housing will be located in the vacant property through specific plan development review, and in fill will be looked at by a case by case basis. CD/DeStefano, in response to C/Meyer's inquiry, stated that the vacant land will be referred to in it's broadest term, and not to the map. The Public Hearing was declared open. The Public Hearing was declared closed. Objective 3.1'- Add the words, "",'and encourage the improvement of,...", after the word "Maintain". The meeting was adjourned to 7:00 p.m., Tuesday, May, 26, 1992. Respectively, James DeStefano Secretary ' Attest: Bruce Flamenbaum Chairman ti �: TO: FROM: SUBJECT: DATE: INTEROFFICE MEMORANDUM Chairman and Planning Commissioners James DeStefano, Director of Community Deve'lopment Presentation of Tres Hermanos Conceptual Plan June 5, 1992 The Cities of Industry and Diamond Bar contracted with a team of consultants in late 1991 to prepare a conceptual land use plan for the 800 acre Tres Hemanos Ranch property. The Tres Hermanos Ranch consists of approximately 2,600 acres, of which 800 acres are located in the City of Diamond Bar. The area is on the edge of the City of Diamond Bar, Phillips Ranch portion of the City of Pomona, and the fast growing community of Chino Hills. The Draft Land Use Element of the City's General Plan identifies this area as a candidate for a Specific Plan in order to analyze and effectively plan the future development of the ranch. The Pomona Unified School District has indicated their desire to place. a new high school within North Diamond Bar. The development of the City's first General Plan combined with the de- sire by the City to support a new high school in North Diamond Bar, and the City of Industry's desire to develop a reservoir, created and opportunity to prepare a conceptual land use plan and the future creation of a detailed Specific Plan incorporating a variety of land uses. The purpose of the study is to prepare a concept plan which would contain the basic element of land use and design and which would accommodate sites for a high school and a reservoir. The program represents a. unique opportunity for all parties, in that the Tres Hermanos area is a strategically located parcel of substantial size along a freeway interchange, which is owned by the City of Industry and who has indicated an interest in taking a long view with respect to development of the property. Unlike a more typical development, therefore, there is an opportunity to create a plan which reflects a long range vision, rather than a short term market opportunity. The purpose of the June 8, 1992 meeting is to present the concep- tual plan to the public, receive testimony, and forward the com- ments along with the final report to the City Council. Attachments 1/1 S CL rr 0 0 CL 0 illillilillililljllllIllill!'Illl!!Il! C) CO z w 2 IL 0 —i Lij w CL w Z 0 C) U) 0 z cr w 'r U) w M -272 72 S oQ$ I L L c L c L L u c c LL y cr. LL cc KOTIN. REGAN & MOUCHLY Inc. Real Estate Consultants 11611 San Vicente Boulevard Suite 700 Los Angeles, California 90049 310/820-0900 FAX: 310/820-1703 PRESENTATION- TRES HERMANOS CONCEPT PLANNING Diamond Bar City Planning Commission, June 8, 1992 A. INTRODUCTION (James Regan & Jim Goodell) 1. Context of Planning Process 2. Definition of Concept Plan 3. Limitations of Process B. PROPERTY SETTING OPPORTUNITIES& CONSTRAINTS 1 Topography and Slope (Mike Rust) 2. Environmental Factors (Woody Tescher) 3. Water Use and Storage Considerations (Woody Tescher & Mike Rust) 4. Market Considerations names Regan) 5. Planning Analysis (Peter Kamnitzer) 6. Wrap-up aim Goodell) C. CONCEPT PLAN ALTERNATIVES (Peter'Kamnitzer & others) D. FISCAL IMPACT names Regan) AGENDA ITEM NUMBER: REPORT DATE: MEETING DATE: CASE/FILE NUMBER: APPLICATION REQUEST: PROPERTY LOCATION: APPLICANT: PROPERTY OWNER: BACKGROUND: City of Diamond Bar PLANNING COMMISSION Staff Report 3 June 2, 1992 June 8, 1992 Tentative Development Development Change 91-1 Tract Map No. 50519/ Agreement No. 91-3/ Review No. 91-2/Zone To subdivide a 2.3 acre site into six (6) lots, to construct an 80 unit Senior Citizen project, and to change the zone classification from C-1 (Restricted Business) to R-3 (Limited Multiple Residence) and to enter into a Development Agreement with the City. 23575 Golden Springs Diamond Development Company 1700 Raintree Road Fullerton, CA. 92635 Same This project was before the Planning Commission as a Senior Citizen's project at the January 27, 1992 public hearing. At the conclusion of the public hearing, the Planning Commission again directed staff to have the Fiscal Impact Analysis completed and to table the project until an appropriate date. In the intervening period, issues related to the General Plan have arisen which have had an impact on the processing of the project. As submitted, the applicant is requesting a zone change, a development agreement, development review, and approval of a tentative tract map. Per the conditions of the State's Housing and Community Development Department, no projects are allowed to be processed which have a vesting map, development agreement, zone change, or General Plan amendment as a component of the application until the General Plan has received approval from the Planning Commission. This project was advertised in. anticipation of the schedule the Planning Commission had established for the General Plan review. The schedule has been amended to provide for a final review of the document and is scheduled for final review before the Commission at the June 8, 1992. At the applicant's request and with staff's concurrence, a continuance to the June 22, 1992 Planning Commission meeting is requested. RECOMMENDATIONS: Staff recommends a continuance of the application to the June 22, 1992 Planning Commission hearing. PREPARED BY: Robert Searcy, Associate Planner ATTACHMENTS: CROWLEY.SR JUN -05-1992 15:47 FROhI FOREFROW DEVELOF'MENT CO. TO P.01 CoMpany Diamond Development J'U',' -5 FLA 22 110 Wilshire Avenue, Suite 300, Fullerton, CA 92632 (714) 773-1041 FAX (714) 773-0298 Via.Facsimile To: Mr. Robert Searcy, Associate Planner From: Ronald J. Crowley Re: Tentative Tract Map Number 50519 / Development Review No. 91- 2 / Development Agreement No. 91-2 / Zone Change 91-1 1 hereby consent onserrt to a continuance of the Planning Commissionmeeting, to hear the above referenced project, scheduled for Monday, June 8, 1992 until Monday, June 22, 1992. INTEROFFICE MEMORANDUM TO: Chairman and Planning Commissioners FROM: James DeStefano, Director of Community Devel 'm SUBJECT: General Plan DATE: June 5, 1992 The Planning Commission has received the latest draft of the Gen- eral Plan Dated June 1, 1992. The draft represents the cumula- tive total of and reflects all changes made during the process of conducting ten (10) public hearings on the General Plan. Staff is prepared to respond to any final changes the Commission may have on Monday, June 8, 1992. RECOMMENDATION: Staf:Creco'mmends that the Planning Commission ,adopt the attached resolution recommending certification of the Environmental Impact Report and approval of the General Plan. RESOLUTION NO. A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF DIAMOND BAR RECOMMENDING THAT THE COUNCIL OF THE CITY OF DIAMOND BAR ADOPT THE DRAFT GENERAL PLAN OF THE CITY OF DIAMOND BAR AND CERTIFY THE ENVIRONMENTAL IMPACT REPORT RELATED THERETO. A. Recitals: (i) The Planning Commission has conducted a duly noticed public hearing with regard to the draft Diamond Bar General Plan. The public hearing commenced on April 13 1992 and finally concluded on June 1, 1992. In the course of the public hearing, the Planning Commission received and deliberated upon written and oral testimony from members of the public, City staff, State agencies,_ local agencies, consultants.and boards and commissions of the City. (ii) The Planning Commission considered, individually and collectively, the five sections comprising the Diamond Bar General Plan, the related appendices and the draft Environmental Impact Report prepared in respect to the draft Diamond Bar General Plan. The draft General Plan incorporates the seven mandatory elements established in Government Code § 65302 into five components, specifically: a. The Plan for Public Services and Facilities; b. The Plan for Resource Management (Open Space and Conservation Elements); C. The Plan for Public Health and Safety (Noise and Safety Elements); d. The Plan for Physical Mobility (Circulation Element); and e. The Plan for Community Development (Land Use and Housing Elements). (iii) The Planning Commission has, in response to its analysis of the testimony presented, and pursuant to its deliberations, caused modifications to the draft General Plan to be implemented. The Planning Commission is recommending the draft General Plan, as amended, and the Environmental Impact Report related thereto, to the Council of the City of Diamond Bar for its approval and adoption. (iv) All legal prerequisites to the adoption of this Resolution have been completed. B. Resolution. NOW, THEREFORE, be it resolved by the Planning Commission of the City of Diamond Bar, as follows: Section 1: In.all respects as set forth in the Recitals, Part A, of this Resolution. that: Section 2: The Planning Commission hereby determines (a) The five components of the Diamond Bar General Plan, including all appendices, completely address the mandatory elements, and the mandatory legal contents required therein, pursuant to California Government Code § 65302 and all other applicable statutes. (b) The Draft General Plan, as amended, is informational, readable, and available to the public pursuant to California Government Code § 65357. (c) The five components, including appendices, are internally consistent with California Government Code § 65300.5. (d) The Draft General Plan, as amended, is consistent with State of California policies, rules, regulations and guidelines. (e) The Draft General Plan covers all territory within the corporate boundaries of the City of Diamond Bar and further, incorporates all lands outside the corporate boundaries of the City of Diamond Bar which the Planning Commission has judged to bear a reasonable relationship to Diamond Bar's planning activities pursuant to California Government code (f) The Draft General Plan is long term in perspective pursuant to California Government Code § 63500; (g) The draft General Plan reasonably addresses all local relevant issues and concerns currently identified. Section 3: The Planning commission certifies that the Environmental Impact Report was completed in compliance with the California Environmental Quality Act of 1970, as amended, and the 3 Guidelines promulgated thereunder, the Planning Commission has reviewed and considered the information contained in said Environmental Impact Report and that said Environmental Impact Report reflects the independent judgment of the City of Diamond Bar and recommends that the City Council so find and certify. Section 4: The Planning Commission recommends that the Council of the City of Diamond Bar approve and adopt the draft General Plan, as amended by this Commission, attached hereto as Exhibit "A", as the General Plan of the City of Diamond Bar. Section 5: The Secretary of the Planning Commission hereby is directed to: (a) certify to the adoption of this Resolution and, (b) transmit a certified copy of this Resolution to the City Council forthwith. 1992. ADOPTED AND APPROVED this _ day of I Chairman I, JAMES DESTEFANO, Secretary to the Planning Commission of the City of Diamond Bar, do hereby certify that the foregoing Resolution was introduced at a regular meeting of the Planning Commission of the City of Diamond Bar held on the day of , 1992, and was finally passed at a 4 regular meeting of the Planning Commission of the City of Diamond Bar held on the _ day of 1992, by the following vote: AYES: COMMISSIONERS: NOES: COMMISSIONERS: ABSENT: COMMISSIONERS: ABSTAINED: COMMISSIONERS: ATTEST: N\1011\GPRESO\bB 5 Secretary A COMMUNITY DEVELOPMENT ISSUES The four major land use issues identified in the Master Environmental Assessment are: 1) land use mix (including open space and economic implications); 2) capacities of the natural and man-made environment to accommodate growth (infrastructure and service costs); 3) City image, including community design and land use compatibility); and 4) local versus regional needs and short-term versus long-term solutions (especially concerning circulation). 1. LAND USE MIX a. - Open Space The preservation of open spaces, especially hillside areas, is a major policy decision facing the City of Diamond Bar. There are several significant open or hillside areas left in the City, but they are under increasing pressure to develop. A major issue that must be addressed involves the status of restrictions against buildings d v lop e t previously approved by the County. Some of these open space areas were precluded from development as a condition of approval for an adjacent tract.Often, these areas were calculated as the open space requirement for the adjacent development, even though the County did not accept dedication. In some instances, additional density was granted to the adjacent development in exchange for retaining these areas as open space. These areas were often dedicated for environmental reasons or because they had physical constraints, and would. create high maintenance costs to the County or high development costs to the owner. As land becomes more valuable (more costly) in Diamond Bar, these higher costs become less of a restriction to development. It can be expected that the City will be asked to reconsider development of some of these lands previously designated as open space. Whether or not these open space areas are allowed to develop is thus a policy issue for the City rather than a property right. Individual property owners with large, hillside lots may also wish to re -subdivide their lots and increase the number of allowable units. The individual property owner would reap an economic benefit, and more individuals would have access to hillside lots. However, there would be a decrease in the actual, and perceived, amount of open space that characterizes the community. There are also different forms of open space. For example, a tract might grade a slope to create a pad of homes and a recreation area. While the natural, passive open space area is lost, a man-made, active open space is created. In each case, the City must decide what type of open space best captures the community vision it wishes to create, while recognizing the interdependency of such factors as maintenance and fire protection costs. ISSUE ANALYSIS: The City should preserve a majority of its remaining open land. b. Economics The City presently has a modest budget with a small operating reserve. However, municipal costs generally tend to increase faster than revenues, and service needs can be expected to increase faster than services can be provided. Therefore, the City should control service costs while seeking ways to increase City revenues. City governments have only two ultimate sources of revenue: local residents and businesses. From these sources, cities derive property taxes from both but sales tax revenues from only local businesses. DIAMOND BAR GENERAL PLAN: LAND USE T June 8, 1992 —� The City could attempt to increase property tax revenues. While resale and new houses in the City command fairly high prices (slightly over $300,000), market research shows that home prices must exceed half a million dollars before property tax revenues approach municipal costs for service. In addition, after the passage of Proposition 13 in 1978, cities receive a much lower proportion of their revenues from local property taxes. Available .data also indicates that lower priced single family, condominiums, and other attached multi -family housing cost proportionately more for services than they generate revenues. A second source of additional revenue to the City would be in sales taxes generated by expanded or new local businesses. In general, market research shows that retail commercial uses generate significantly positive municipal revenues compared to costs. By comparison, business park uses generally "break even", while office uses cost more to serve than the revenues they produce for a City. The third source of additional revenues for the City would be s new or higher user fees, taxes, or service assessments. There are a variety of such charges available to cities that can be applied to either residents and/or businesses. For these reasons, economic factors are closely tied to land use decisions; the amount and variety of non-residential (especially commercial) uses allowed in the City will largely define its revenue options as it 'determines the types of services it can provide. Aside from property taxes and per capita subventions, sales taxes are often the largest source of municipal revenues. However, the post Proposition 13 pendulum may swing some other way in the future, and it is important for the City to make sound land use decisions based on the long-term quality of the livingenvironment, rather than solely on the economic benefits of unpredictable market trends. There are four fundamental marketing strategies that cities typically employ, relative to commercial land, to generate positive municipal revenues/costs. Cities can choose is attract low to middle range shoppers, or they may decide to focus on upper or high-end buyers. Depending on location, cities can also choose between attracting local buyers, or e*pleit ? 4 more regional shoppers. Fortunately, Diamond Bar can take advantage of all of these marketing strategies to maximize its economic diversity. The City could develop an area with good freeway visibility and access for high-end specialty commercial and office uses. These uses could attract local but also a considerable amount of regional shoppers as well. High end office uses could also be located nearby to support these commercial uses. There are also several large shopping centers in the City with good freeway visibility and access which can support regional, freeway -serving, or community commercial uses. Smaller shopping centers located on major streets within the developed portions of Diamond Bar should be oriented mainly for local use. The City also has the potential to take advantage of regional mid- range shopping opportunities in the undeveloped northeastern portion of the City, along the Pomona freeway. ISSUE ANALYSIS. There is a need to encourage a variety of new or expanded commercial uses and other non-residential development, as well as investigate other funding mechanisnis, to help finance City services. 2. CAPABILITIES OF THE NATURAL AND MAN-MADE ENVIRONh4ENT a. Natural Resources Events of this decade have highlighted our limited regional resources, such as air quality, water, and solid waste disposal. As a new city; Diamond Bar needs to establish its own position on these environmental issues. Although the City is largely built out, additional growth could place unacceptable limits on sensitive or scarce resources. ISSUE ANALYSIS: There is a need for the City to plan for growth in ways that protect and conserve natural resources and the environment. b Infrastructure Capabilities At present, the City has a fairly new infrastructure system and operates its services with a slight surplus of revenues. However, as the City ages, maintenance and service costs go up faster than municipal revenues increase at a similar ratio. The current mix of land uses within the City is insufficient to adequately fund long-range capital and operating needs. ISSUE ANALYSIS: There is a need to plan now for the maintenance of existing facilities, fund new facilities, and supportfuture services to continue the high quality of life in Diamond Bar. 3. CITY IMAGE a. Master PIanned Community A major land use issue in Diamond Bar's vision of the future is the overall image the community wishes to achieve. " In certain respects, Diamond Bar presents opportunities similar to those of a Mediterranean seaport ` village. Earth -tone walls, red -tiled roofs, and green landscaping seem to terrace up and away from a low vantage point. For Diamond Bar, the main vantage points are. along the 57 and 60 freeways, instead of the ocean. The views from the freeway are the City's signature, . and the open spaces visible from the freeways represent an opportunity to enhance and define the image Diamond wishes to project. Although tasted teriti:eci: as the first master -planned community in the west, Diamond Bar is essentially a series of individual residential tracts, with local commercial and multiple family projects located at arterial intersections. As such, it lacks certain unifying features that provide a focus for the City, and which serve to reinforce the sense of community. However,the City has a reputation as a "good community", and thus has many options as to the image it can project in the future. The vision of the General Plan offers the opportunity to unify these elements into a more cohesive community. ISSUE ANALYSIS: There is a need to foster a City image that reflects and defines the conintunity's high quality of life. DIAMOND BAR GENERAL PLAN: LAND 'USE T pp June 8, 1992 T O a. Identify hillside.areas with an average slope greater than 25 percent as Rural Residential (RR) on the Land Use map. The maximum gross density of Rural Residential will be 1.0 dwelling unit per gross acre (1 du/ac). b. Identify established master planned single family neighborhoods as Low Density Residential (RL) on the Land Use map. The maximum density of Low Density Residential areas will be 3.0 dwelling units per gross acre (3 du/ac). C. Identify existing single family detached residential subdivisions are Low Density Residential (RLM) on the Land Use map. The maximum density of Low Medium Density Residential areas will be 6.0 dwelling units per gross acre. (6 du/ac). d. Identify townhome, condominium, apartment, mobilehome, and other multiple family residential properties as Medium Density Residential (RAI) on the Land Use map. Maintain a maximum density of 16.0 dwelling units per gross acre (16 du/ac) within these areas. 1.1.2 Identify commercial land use categories to provide for a range of retail and service uses to serve City needs and to guide development within the City and its sphere of influence. a. Establish General Commercial (C) areas to provide for regional, freeway -oriented, and/or community retail and, service commercial uses. Development of General Commercial areas will maintain a floor area ratio (FAR) between 0.25 and 1.00. b. Identify Commercial Office (CO) land use areas on diverse, mixed use commercial retail, office, and service properties. Development within Commercial Office areas will maintain an FAR between 0.25 and 1.00. C. Identify Professional Office (OP) areas to provide for the establishment of office -based working environments for general, professional, and administrative offices, as well as support uses. 1.1.3 Areas designated Light Industrial (I) on the General Plan Land Use map. are to provide for light industrial, research and development; and office -based industrial firms seeking a pleasant and attractive working environment, as well as for business support services, and commercial uses requiring more land afeas`ate than is available in General Commercial or, Commercial Office areas. These areas will maintain a maximum floor area ratio of 0.25 to 1.00. 1.1.4 The Public Facilities (PF) designation is designed to identify existing or potential (future) sites for necessary public facilities or infrastructure improvements. The primary purpose of land designated as Public Facilities, is to provide areas for the conduct of public and institutional activities, including but not necessarily limited to, local; State, and federal agencies, special districts, and both public and private utilities. These uses maintain development standards which do not exceed that of the most restrictive adjacent designation. DIAMOND BAR GENERAL PLAN: LAND USE T June 8, 1992 1-1 0 1.2.7 Whereconsistent with the other provisions of the Diamond Bar General Plan, encourage the provision of low and moderate cost housing (see also Housing Goals, Objectives; and Strategies in this document). 1.2.8 Provide density bonuses of 25 percent or more for projects which provide: a. a minimum of 10 percent of its units at rates affordable to housing low and moderate income households; or b. exemplary design and significant amenities beyond minimum requirements. 1.2.9 Density: calculations for development proposals that offer significant community amenities may include land previously designated as open space if clustering and/or the transfer of development rights are utilized to protect those open space resources determined to be significant by the City. This process would allow a property owner to "transfer" all or partof the development potential of an entire site (either units or buildings) to a smaller portion of the site, thus preserving the remaining land. Objective 1.3 Designate adequate land for retail and service commercial, professional services, and other employment -generating uses in sufficient quantity to meet the City's needs., Strategies: 1.3.1 Identify such lands for commercial use as are necessary to minimize sales tax leakage out of Diamond Bar and to capture the City's fair share of sales tax revenue. a. Identify retail needs which are not being met in the community. b. Define and implement an economic development program to attract needed . commercial uses to the City. 1.3.2 Encourage the development of businesses that take advantage of locations visible from the freeway. a. Within the General Commercial designation, appropriate land uses include a broad range of retail commercial and service uses. 1.3.3 Encourage neighborhood serving retail and service commercial uses. a. Typical uses in the Commercial Office category include general retail, specialty retail, markets, food and drug stores, commercial services, restaurants, automotive repair and service, hardware and home improvement centers, recreation, professional and business offices, financial institutions, medical offices, and real estate offices. 1.3.4 Encourage the rehabilitation,refurbishment, and/or expansion of existing uses that generate sales tax revenues to the City, where consistent with other provisions of the General Plan and Development Code. DIAMOND BAR GENERAL PLAN: LAND .USE - T T-12 June 8, 1992 1.3.5 Encourage employment -generating uses in locations that serve the city's needs. a. Professional Office areas are to provide for the establishment of office -based working environments for general, professional; and administrative offices, as well as necessary support uses. b. The Gateway Corporate Center in particular offers large lots with a capacity for multi -story buildings, and is designed to take advantage of unique locations with good freeway access, as well as access to miscellaneous support uses. Buildings adjacent to the freeways along Gateway and Bridgegate should have a maximum of six (6) stories). Buildings along Copley and Valley Vista should have a maximum of eight (8) stories. Trees native to the area should be used to. obstruct unsightly views. Maintain an overall FAR of 0.50. c. Within the Professional Office designation,, appropriate uses include administrative and professional offices; business related retail and service functions, restaurants, health clubs, financial institutions, medical and health care facilities, service stations, vocational and trade schools, corporate offices, financial institutions, brokerage firms, and multi -tenant offices. Commercial uses allowed in areas that support office uses include limited convenience commercial, specialty retail, hotel/conference facilities, and restaurants. d. Within the Light Industrial designation, allowable uses include light manufacturing, assembly, wholesaling, and warehousing conducted within an enclosed building; small scale warehousing and distribution; administrative and professional uses; business support uses; eating and drinking establishments; personal services; retail sales of durable goods (in support of primary activities); and research and development. In addition, administrative offices supporting the primary industrial use of the property may be permitted. Objective 1.4 Designate adequate land for educational, cultural, recreational, and public service activities to meet the needs of Diamond Bar residents. Strategies. 1.4.1 Ensure that land owned and purchased for public use by public agencies fife Is designated on the Land Use map for public purposes: a. Specific uses within the Public Facilities category, as shown on the Land Use map include water facilities, fire stations, schools, parks, libraries, and similar facilities. 1.4.2 Promote joint development and use of parks and open space facilities with adjacent jurisdictions; promote development of joint school/park sites. 1.4.3 When a public agency determines that land it owns is no longer needed, ensure that the property is offered to other agencies, including the City of Diamond Bar, for public uses, prior to conversion to private sector use. DIAMOND, BAR GENERAL PLAN:_ LAND- USE TT June 8, 199? 1— l 3 1.4.4 Designate and pursue acquisition of a centralized site for use as a civic purpose community community center. Objective 1.5 Maintain a feeling of open space within the conununity by identifying and preserving an adequate amount of open land. Strategies:' 1.5.1 Maintain an inventory of previous dedications, designations, or decisions regarding open space made by the County of Los Angeles and the City. a. The City shall require developers of vacant land to provide appropriate title or other ownership documents to identify any development restrictions on the property: 1.5.2 Coordinate the protection of open land by the identification and funding of new City parks, natural or landscaped slopes, or maintenance agreements for private land in exchange for preservation of natural areas. a. Investigate the need fora bond issuance to purchase open space areas not already protected by open space restrictions. b. Investigate the need for establishment of one or more Landscape and Lighting Districts to provide for open space improvements and maintenance. c. Investigate the potential for establishment of a maintenance district for vaiieus privately -owned, . hHidseeled slope areas i t along or visible from major roadways: Objective 1.6 Provide flexibility in the planning of.new development,as a means of encouraging superior design. 1.6.1 Encourage the innovative use of land resources and development of a variety of housing and other development types, provide a means to coordinate the public and private provision of services and facilities, and address :the unique needs of certain lands by recognizing a Planned Development (PD) designation, in which residential, commercial, recreational, public facilities, and other land uses may be permitted. a. Within the Planned Development classification, all residential land uses considered to be. appropriate within the City of Diamond Bar, as well as support uses (e.g. open space and recreation, public facilities, commercial, limited employment -generating uses), may be appropriate, as determined in the development review process. b. Require that Planned Development projects provide a greater level of community amenities and cohesiveness, achieve superior design, and create a more desirable.. living environment than could be achieved through conventional subdivision design and requirements. DIAMOND BAR GENERAL PLAN: LAND USE T-14 June 8, 1992 1 1.6.2 Encourage the innovative, use of land resources and development of a variety of housing and other development types, provide a means to coordinate the public and private provision of services and facilities, and address the unique needs of certain lands by recognizing a Specific Plan (SP) designation for large scale development areas in which residential, commercial, recreational, public facilities, and other land uses may be permitted. a. Encourage development of a specific plan pursuant to the provisions of Government Code Section 65450 for the Tonner Canyon area that will protect its unique biological and open space resources, create fiscal benefits for the City and enhance its infrastructure, while minimizing future adverse impacts to both the human and natural environment of the City, as well as the region. Development which would. be appropriate and which could be designed to be compatible with the environmental objectives for the area might include recreational, residential, and commercial uses. In addition, the Tonner Canyon Specific Plan should make provision for a regional transportation corridor. Within this specific Plan area, development at an equivalent of 1.0 dwelling units per acre may be permitted. b. Encourage formulation of a specific plan pursuant to the provisions of Government Code Section 65450 for the 800 acres in the northeast segment of the City known as Tres Hermanos. This area represents a unique opportunity to provide facilities of a type and in a manner which take advantage of the site. Facilities appropriate for this site should be designed based upon a vision for the future, and not merely extend the patterns of the past. Such facilities may include a high schoole1otlrrlcaigrial isf€(itzfs, reservoir for practical and aesthetic purposes, commercial developments which are not typical of those found in the area, and a variety of residential and other uses which are complementary to the overall objective of having a master planned area. Development within the Tres Hermanos area should be designed so as to be a part of the Diamond Bar community, as well as compatible with the adjacent lands, 1.6.3 Establish a process to allow the transfer of density or development rights from land with important open space (or other resources), to land that is more suitable for development. 1.6.4 Encourage hillside development to be clustered within the most developable portions of project sites to preserve common open space and/or other natural resources. Such development should be located to coordinate with long-term plans for active parks, passive (open space) parks, and preserve natural open space areas. a. Carefully review offers to dedicate additional open space land to the City. Consideration will be given to soil conditions, funding of maintenance as a,e11 ne the arum] rh-Aoafinn_ Objective 1.7 Stimulate opportunitiesfor a population which is diverse in terms of age, occupation, income, race, interests, and religion to interact, exchange ideas, and establish and realize conunon goals. Strategies: 1.7.1 Retain and provide a hierarchy of community social gathering places, including active and natural park lands, one or more community centers, and plaza areas within new commercial and office complexes: 1.7.2 Maintain a public information program to inform residents of community events. a. Whenever possible, establish permanent locations and regular dates for community events to improve attendance and firmly fix the event(s) in the mind of the public. b. Encourage a "Community Calendar as part of the local cable television programming to inform residents about the times and locations of upcoming community events. 1.7.3 Where feasible within new developments, encourage a mixture of complementary . development types (e.g. residential, recreational;. sales tax- and employment -generating uses) which can be provided in an integrated. manner. 1.7.4 Within new residential developments, encourage organization of neighborhoods into smaller units and discourage through traffic on local streetswhile maintaining pedestrian and bicycle continuity and encouraging ' neighborhood improvement programs and social events. GOAL 2—Manage land use with respect to the location, density and intensity, and quality of development in order to maintain consistency with the capabilities of the City and special districts to provide essential services, and to achieve sustainable use of environmental and manmade resources. Objective 2.1 Promote land use patterns and intensities which are consistent with the Plan for Resource Management. Strategies: 2.1.1 Ensure that planning programs and individual development projects within and affecting the City recognize, and are sensitive to, environmental resource limitations. a. Prior to approving. new development or the intensification of existing development within the City of Diamond Bar, ensure that the environmental consequences of the proposed action have been recognized. b'. When reviewing plans' and development projects referred to the City by adjacent jurisdictions, insist that there be a recognition and appropriate mitigation of the environmental consequences of the proposed action. DIAMOND BAR GENERAL PLAN: 'LAND USE I-1.6 June 8; 1992 2.1.2 Ensure that new development utilizes feasible contemporary technologies to reduce energy and water consumption, generation of solid and hazardous wastes, and air and water pollutant emissions. 2.1.3 Ensure that time -specific issues are evaluated as part of the review of new development and intensification of existing development. For example, where appropriate, -_require prior. -to .approval, that. biological assessments be prepared through the seasonal cycle of plants, or the seasonal migration of animals. Objective 2.2 Maintain an organized pattern of land use which rrunimizes conflicts between adjacent land uses. Strategies: 2.2.1 Require that new developments be compatible with surrounding land uses. 2.2.2 Prohibit the development of adjacent land uses with significantly different intensities, or that have operating characteristics which could create nuisances along a common boundary, unless an effective buffer can be created. 2.2.3 Where land uses of significantly different intensity or use are planned adjacent to each other, ensure that individual site designs and operations are managed in such a manner as to avoid the creation of nuisances and hazards. 2.2.4 Require that new developments be designed so as to respect the views of existing developments; provide view corridors which are oriented toward existing or proposed community amenities, such as a park, open space, or natural features. a. As part of the Development Code, adopt clear standards to identify the extent to which views can, and will, be protected from impacts by new development and intensification of existing development: Objective 2.3 Ensure that future development occurs only when consistent with the availability and adequacy of public services and facilities. Strategies: 2.3.1 Through the environmental and development review processesrsri that adequate services and facilities are available to support each development 2.3.2 Require new development to, pay its fair share of the public facilities and offsite improvements needed to serve the proposed use. DIA114OND BAR GENERAL PLAN: LAND USE T . June 8, 1992 T_ �� 3.3.2 Require in' the Development Code that setbacks from streets and adjacent properties relate to the scale of the structure as well as the size of the street right-of-way. Require that building setbacks along roadways to be varied so as to avoid a monotonous street scene. 3.3.3 Minimize the use of block walls unless they are needed for a specific screening, safety, or sound attenuation purpose. Where feasible, provide instead a wide open area with informal clusters of trees, defined by split rail, wrought iron, or similar open fencing. a. Where construction of a solid wall which will be visible along a public street is necessary, provide landscaping such as trees, shrubs, or vines to break the visual monotony, and soften the appearance of the wall, and to reduce glare, heat, or reflection. Where .solid walls currently exist along the primary roadway system, and it is possible to retrofit landscape screens, establish a funding mechanism for the construction of such screens. 3.3.4 Enhance pedestrian activity within residential, commercial, office, and I i g h t industrial areas. a. Ensure that non-residential facilities are oriented to the pedestrian, by the incorporation of seating areas; courtyards, landscaping, and similar measures. b. Utilize "street furniture" (decorative planters, bike racks, benches) to create and enhance urban open spaces. C*. Design commercial and office projects,. so as to have a central place, main focus, or feature: d. Utilize varied building setbacks and staggered elevations to create plaza -like areas .which attract pedestrians, whenever possible. 3.3.5 Require that automobile service facilities and commercial loading areas be oriented away from the street frontage and from residential edges wherever possible to minimize sight and sound impacts: 3.3.6 Where the rear or sides of commercial, office, or other non-residential buildings will be visible within a residential neighborhood, ensure that the visible elevations will be treated in such a manner as to provide a pleasing appearance. 3.3.7 Ensure that commercial developments are designed with a, precise concept for adequate signage, includingprovisions for sign placement and number, as well as sign scale in relationship to the building, landscaping, and readability as an integral part of the signage concept. a. Ensure that signs are integrated into the overall site and architectural design theme of commercial developments. 3.3.8 In conjunction with area utility companies, pursue a program of undergrounding overhead utility lines. DIAMOND BAR GENERAL PLAN: 'LAND USE I-19 June 8, 1992 - and Community Development has required that localities must account in their Housing Elements for future needs that will have already occurred during the -1-1/2 year "gap" period from January 1 1988, to June.30, 1989. The following four income level groups are. used ,to define need for a particular jurisdiction: ® "Very Low" -Less than 50 percent of the median income "Low" -50_ to 80_ percent_of the median income ® "Moderate" -80 to 120 percent of the median income ® "High" -.more .than 120 percent of the median income State housing laws require that, in allocating future housing need by income level, further "impaction", or concentration of lower income households, be avoided. Cities with a percentage of lower income households higher than the regional average are called "impacted" jurisdictions. The 1988 RHNA addresses the "avoidance of impaction" criteria by allocating reduced percentages of lower income and increased percentages of middle and upper income units to impacted jurisdictions while reversing the allocation to non -impacted cities. According to the 1988 RHNA, the unincorporated portion of Los Angeles County had 33,492 households in the Very Low category, 16,826 households in the Low category, and 100,658 households in the Medium category. Housing element .guidelines indicate that households that pay more than 30 percent of its income towards housing are termed "overpayment". This means that 50,318 households in the County were considered to be overpaying for housing. Assuming that Diamond Bar supports a proportionate share of the unincorporated County housing need, there are 2,466 lower income households in the City paying 30 percent or more of their income for housing (50,318 times 4.9 percent City vs. County housing). This number equals 15.9 percent of Diamond Bar's total resident households (based on an estimated 15,500 households in 1988). This figure may be somewhat high, given local income levels and house prices, however, there are many seniors or retired persons with fixed incomes in the City, as well as residents that bought houses up to 15 years ago. Because the cost of housing in this area, as throughout southern California, has risen faster than income, much of Diamond Bar's housing wealth is not reflected in personalincome figures. At present, Diamond Bar tS not considered an impacted jurisdiction (Trumbell-SCAG 1991). According to Urban Decision Systems, Inc., Diamond Bar is expected to grow by 3,619 households over the next five years. With no adjustments for vacancy or demolition, Diamond Bar will have an additional 575 households over the next five years that will be overpaying for housing (93,619 times 15.9 percent). However, it should be noted that application of County -wide figures gives an inaccurate picture of housing affordability in Diamond Bar. According to the 1987 Los Angeles County Housing Element (page H-5), the unincorporated portion of Los Angeles County will need 6,700 new units affordable in the Very Low category, and. 9,250 units in the Low category.. For Diamond Bar, this equates to 328 units in the Very Low category and 453 units in the Low category: DIAMOND BAR GENERAL PLAN: HOUSING `, 7 June 31 1992 117 5 Table II -2 Diamond Bar Age Distribution 1980 1990; 'AGE Number Percent Number Percent. 0 - 5.. 3,421 10.9% 5;056 9.4% 6- 13 5,154 16.4% 6,9.12 12.9% 14 - 17_ 2,532 8.0% " 3,357 6.3% 18-20 1,459 4.6% 2,471 4.6% 21 -24 1,666 5.3% 2,870 5.3% 25 - 34 7,014 22.3 % 9,352 17.4% 35 -44 5,381 17.1% 11,121 20.8% 45-54 2,853. 9.1% 6,895 12.8% 55-64 1,378 4.4% 3;367 6.3% 65 +; 624 ; 2.0% 2,271 4.2 Total 31,482 .100.0% 53,672 100.0% Median Age 27.5 31.9 Source: 1980 Census and 1990 Census. 3. SPECIAL HOUSING NEEDS Under present law, a housing element must include an analysis of special housing needs. These needs refer to households having ""re""*",:'::.:.:.:;.:.:,",:I*--characteristics — the handicapped, elderly, overcrowded households and large families, persons in need of emergency shelter (homeless), and farm workers. a: Households with Handicapped Members Households with one or more members who have physical handicaps sometimes require special design features in the housing, they occupy. Some, but certainly not all, handicapped households also have housing assistance needs.The focus .of handicapped households as a special need segment is primarily on their number and economic situation: The needs and problems of the disabled and handicapped population have been described as follows: The major housing problems of disabled people are the lack of affordable accommodations and inadequate accessibility to newly built or existing housing. These basic problems are caused by a variety of factors: a) subtle, or not, so subtle discrimination; b) lack of understanding and sensitivity to the needs of the disabled; c) lack of financial resources and incentives available .to those who want to make their buildings accessible. and; d)' lack of knowledge as to how accessibility can be improved. DIAMOND BAR GENERAL PLAN: :`HOUSING II -7 June 8, 1992 1. INVENTORY OF LAND SUITABLE FOR RESIDENTIAL DEVELOPMENT State housing. law contains several provisions that pertain to the adequacy of sites to accommodate housing needs: ® "The housing element shall identify adequate sites for housing, including rental housing, factory -built housing, and-mobilehomes and shall make adequate provision for the existing and projected needs of all economic segments of the community." ® "An inventory of land suitable for residential development; including vacant sites and sites having potential for redevelopment, and an analysis of the relationship of zoning and public facilities and services to these sites." ® "Identification of adequate sites which will be made available through appropriate zoning and development standards and with public services and facilities needed to facilitate and encourage the development of a variety of types of housing for all income levels, including rental housing, factory -built housing, mobilehomes, emergency shelters, and transitional housing in order to meet the community's housing goals." The Plan for Land Use contains the inventory of land suitable for residential development, including both vacant and underutilized sites by residential density category. Areas with sites having a realistic potential of residential development include: 1) the Tres Hermanos property, occupying almost 1,000 acres at the northeast corner of the City; 2) the vacant property in the north -central portion of the City, occupying several hundred acres; and 3) several parcels of moderate size (10 acres or more) found scattered in the southern and western section of the City. Although there is other available land within the City, much of it is very steep or has other physical constraints that would generally preclude, its use for. moderate density residential development. The land within the current City limits that is available for general residential development could yield an additional 3,500 units. However, the land could support up to 5,000 additional housing units if the density of development was increased. This potential supply exceeds the projected local need figure of 781 dwellings for the 1989 - 11,194 time period, based on a proportionate share of,County-wide'housing need as estimated in the 1987 RHNA report (Trumbell-SLAG 1991). . a. Residential Land Use Categories RURAL RESIDENTIAL (0.0:1.0 DU/AC) Areas designated for Rural Residential including hillside areas that are suitable for low density residential areas. These areas are appropriate for rural residential development with a modest amount of open space. The maximum residential density is up to one dwelling unit per acre (1 du/ac): Low DENSITY RESIDENTIAL (1.1 - 3.0 DU/AC) The Low Density category limits land uses to single family detached residential. The maximum density within Low Density areas is up to three dwelling units per gross acre (3 du/ac). In Diamond Bar, the development. of second units and attached dwellings behind the primary residential structure is allowedy4th the elha ,.c.,g subject to the provisions of the City'szoning ordinance. Iri addition, second units and attached. dwellings, which were constructed pursuant to valid permits issued prior to the effective date of this .element are permitted,.:even if the -resulting density of a site would be greater than 3 du/aa. DIAMOND BAR GENERAL PLAN: HOUSING TT June 8, 1992 11-1 l 3. NON-GOVERNMENTAL CONSTRAINTS Various factors not under the control of government also affect the cost, supply and distribution of housing. These factors include land cost, construction costs, financing costs, speculation, and miscellaneous costs. a. Land and Construction Costs The costs of improved land as a percentage of new, home cost rose steadily in California during the 1970's, increasing from 21 percent to almost 28 percent in 1980. Land costs include the costs of raw land, site improvements, and all costs associated with obtaining government approvals. According to the City of Los Angeles's Housing Element, this proportion held true in 1987. It is important to note that the price of residentially -zoned raw land ,is driven by the local housing costs. That is, the price:of land does not drive the price of finished dwelling units, but in fact the price of comparable finished units drive the price of land. A typical breakdown of line item costs per unit is found in Table II -5. The exampleassumes a 40 acre site zoned for single family residential on 7,200 square foot lots. Table II -5 Cost Estimate for New Single Family Housing in Diamond Bar (1988) 1.1.5 Establish a monitoring program which identifies the type and cost of housing being produced within Diamond Bar, as well as the availability of vacant land which can be used in the short-term to accommodate a variety of housing types throughout the, City; produce required reports to accomplish the programs outlined in this plan for housing that is affordable to "very low," "low, and "moderate" income households. To ensure well planned residential growth while meeting the City's housing responsibilities, review proposed residential projects, general plan amendments, and changes of zone for their effects on the neighborhood, the City, and regional housing needs. Provide timely review of development requests.with fees sufficient only to cover the actual costs (direct and overhead) incurred by the City. In order to do so, consider changes in case processing such as: • Computerize case records to allow for automated case tracking. • Schedule case processing timetables to provide reasonable expectations in processing applications based upon available resources. • Hold public and agency review of EIR's concurrently so that processing time can be reduced. 1.1.8 Encourage use of innovative site development and construction materials and techniques that both meet the intent of City ordinances and reduce the cost of site preparation and/or construction. 1.1.9 Comply with California Government Code Section 65915 by providing a minimum 25 percent density bonus, or equivalent financial incentive, to residential developers who agree to make a minimum of 20 percent of the units within the project affordable to households with an income of 80 percent of the County median income, or make 10 percent of the units within the project affordable to households with an income of 50 percent of the County median income, or make 50 percent of the units available exclusively to senior citizens. 1.1.10 Assure that the zoning ordinance provides requirements for diversification of residential development. Developments which include more than five (5) urban residential units will . be required to: • provide a mix of dwelling unit types (e.g. single and multi -family); • contribute to the City's balance of affordable housing at all income levels withthe intent that "up to ten percent (10%) of all new housing within the project beaffordable to very low, low, or moderate income households; or ® pay an "in i fee to be used by the City for the provision of housing affordable to very low, low, or moderate income households. DIAAlOND BAR GENERAL PLAN: HOUSING June 8, 1992 11 T 18 Within the City, the 57 Freeway is designated as a State Scenic Highway with views of the mountains to the north and east. Local roadways such as Golden Springs Drive, Diamond Bar Boulevard, and Grand Avenue offer a variety of suburban and open views within the City. 4. WATER RESOURCES One of the fundamental long-term constraints for both urban and rural development is the availability and quality of water. As throughout Southern California, water availability has become, and will remain, a major resource constraint facing Diamond Bar. The strategies for this section focus on the actions which must be taken to ensure the continuing supply of water needed to support Diamond Bar's future. Water is provided to area by the Three Valleys Municipal Water District but locally distributed through the Walnut Valley Municipal Water District. Ultimately,. almost all local water districts receive most of their imported water (other than groundwater) from the Metropolitan Water District (MWD). As a result of the ongoing State-wide drought, now in its W sixth year, the MD has restricted local water supplies by 25 of through the imposition of surcharges on water that is supplied in excess of these levels. A Master Plan of Water is being prepared by the Walnut Valley Water Municipal District which estimates a buildout population for Diamond Bar on the order of approximately 75,000 residents, which is higher than the estimated buildout of the City. The degree to which the modest amount of growth projected by the General Plan can b -- accommodated. accommodated by the local water districts will depend on the regional availability of water. 5. ENERGY RESOURCES The availability of energy resources is a growing societal concern. Urban and suburban land uses within the City all rely on the availability of a continuing 'supply of affordable energy resources.. However, recent experience has been that unless society's awareness of the critical nature of energy availability is increased, significant dislocations in the economy and local quality of life can result. Energy conservation is not only necessary to the continued functioning of modern 'society, but provides immediate benefits to individuals,and businesses in utility bill savings and improved air quality.. The strategies provided in this section propose energy efficient building and land use practices. Many other actions needed to conserve energy require cooperation -with federal and State agencies; as well as with public utilities, which have indicated their interest in promoting energy conservation. 6, SOLID .WASTE' Landfill disposal of solid wastes and the conservation of recyclable materials have become important public concerns by reason of the diminishing capacity of landfill space and growing environmental problems facing our State.: For this reason, the State Legislature passed the California Integrated Waste Management Act of 1989 (AB939). The Act, also known as Public. Resources Code Section. 41000 et. seq., requires each city to prepare, adopt; and implement.a Source Reduction and Recycling Element (SRRE) which identifies how that jurisdiction will divert, through a combination of source reduction, .recycling, and composting programs,, 25 percent of solid wastes from landfill disposal by 1995, and 50 percent. or the maximum amount feasible by the year 2000. Since the improper disposal of hazardous wastes poses a more serious risk to the public's health and threaten #a#efts the environment in which we live, the Legislature passed AB 2707 (Public Resource Code Section 47500 et. seq.) which requires .each city to prepare a. Household Hazardous Waste Element (HHWE). The E HWE describes how the City will dispose of hazardous substances like household cleaners, paints, pesticides, and motor oil. DIAMOND BAR GENERAL PLAN: RESOURCE MANAGEMENT III -5 June 8, 1992 7. AGRICULTURE The City of Diamond Bar presently has no important agricultural farmlands according to the California Department of Conservation, Division of Land Resource Protection; and the Soil Conservation Service of the U.S. Department of Agriculture. These agencies classify important farmland into six categories according to soil type: prime; potential prime, statewide important; locally important; and unique farmlands. While none of these classifications have been applied to soils in Diamond Bar, the area did at one time support extensive - - walnut groves and cattle ranches. Over the last 30 years, the farm and ranchlands that once typified Diamond Bar have been converted to urban and suburban uses. Prior to 1900, the production of walnuts and cattle grazing were the primary agricultural activities within the City. Today, only scattered grazing remains, primarily on the Tres Hermanos property in the northeastern comer of the City. This area contains the "headwaters". of Tonner Canyon, and the upper portions of this canyon, just south of Tres Hermanos and west of Diamond Bar, are also grazed periodically. The middle portion of Tonner Canyon, within the City's sphere of influence, supports oil production, as well as the Firestone Boy Scout Camp, and is not grazed on a regular basis. The entire Southern California region is experiencing a strong demand for housing and urban development. Because of this demand and the inevitable conflicts between urbanization and agriculture, previously extensive agricultural land in the City has already been systematically removed from production. Therefore, the remaining agricultural (grazing land) within the City will eventually be phased out: 8. MINERAL RESOURCES The City of Diamond Bar does not contain any identified (significant) mineral resources. The State of California has established four categories of Mineral Resource Zones (MRZs). Most of Diamond Bar is considered in MRZ-1, which identifies areas where adequate information indicates no significant aggregate deposits are present. However, a particular bedrock formation (Puente) underlies scattered portions of the City. This formation is classified as MRZ-3, which identifies areas that may contain aggregate mineral deposits but whose significance cannot be evaluated from available data. Based on available data, development in Diamond -Bar will have to import substantial quantities of aggregate materials anyway, since none of the surrounding areas contain extensive deposits. 1. OPEN SPACE AND VISUAL RESOURCES There are several major vacant hillside or open space areas remaining in the City, which are under various pressures to develop. Many currently open lands were previously restricted from development by the County. The City has the option to continue to'apply restrictions or to allow additional development. The City needs to determine which areas will be preserved and what means to use to best assure their protection. These areas should be incorporated into the planning process for (new) active and passive parks. This is especially true for the future new development such as Tres Hermanos, upper Sycamore Canyon and Sandstone, Canyon properties. In addition, planning for Tonner Canyon should be done in conjunction with property owners and representatives from the various jurisdictions that overlap Tonner Canyon. ISSUE ANALYSIS: There is a need to provide a Balanced open ' space preservation and recreation plan which responds to existing and future developments; within the City and the sphere of influence. DIAMOND BARGENERAL PLAN: RESOURCE, MANAGEMENT June 8, 1992 111-6 2. BIOLOGICAL RESOURCES The City and its sphere of influence contains several areas with significant biological resources. These areas should be considered for preservation in conjunction with important open space and visual resource areas. Areas should be selected for preservation to support the maximum amount of biological resources for the longest period of time. This includes wildlife corridors to prevent isolation and loss of diversity in biological "islands" if they are cut off from larger and more diverse areas.. ISSUE ANALYSIS: These is a need to protect "areas with important biological resources, both within the City and the sphere of influence. 3. " PARKS. AND RECREATION The City has a variety of recreational facilities presently available for local residents. While there are. numerous facilities in the area, some local parks are small or isolated. There are few additional parks planned for the future. As the City grows, there will be additional demands placed on existing. facilities. ISSUE ANALYSIS: There is a need to plan for adequate parks and recreational facilities to serve the growing needs of local residents through the utilization of existing facilities within City boundaries and throughout the area; additional recreation parklands are necessary to meet the community needs. 4. WATER Water is a scarce, and expensive, natural resource. The City already makes use of reclaimed water, and this source will probably be depended on more in the future to "free up" potable water for additional domestic use. The level of additional population growth in the City will be modest, but water may continue to be a limiting factor. in lonb range planning.. ISSUE ANALYSIS: The City should work with local water purveyors and the community to encourage water conservation and use of reclaimed water. 5. ENERGY While water is the current resource shortage, there have also been short-term energy (fossil fuel) shortages. In times.of increasing population, consumption, and environmental awareness, the efficient use of energy will continue to bean important aspect of responsible community life. There are many educational,governmental, and private institutions nearby that are on the cutting edge of energy technology. The City should.avail itself of environmentally safe methods of resource conservation and encourage testing of new technologies. ISSUE ANALYSIS The City should encourage energy conservation and innovation in energy systems. 6. SOLID WASTE While the disposal of solid waste is a significant problem; recent legislation has several immediate and specific implications for Diamond Bar. Cities are now required to reduce their production of solid waste and implement recycling programs, as well as arrange for the disposal of hazardous household materials. ISSUE ANALYSIS: Thee City should outline an integrated waste management strategy and. ,•,to»f,fiy „ mornm:c that will assist the City in minimizing the environmental 1.1.4 Preserve to the maximum extent possible existing vegetation within hillside development areas not designated for construction. 1.1.5 Require that significant vegetation which cannot be preserved in place, but is suitable for transplanting, be relocated if feasible. 1.1.6 Require that dwelling, units, structures .and landscaping_ be sited in a manner which: ® Protects views for existing development ® Retains opportunities for views from dwellings • Preserves or enhances vistas, particularly those seen from public places ®. Preserves mature trees, natural hydrology, native plant materials, and areas of visual interest. ®'et#a#eatt�val ol` vegetatxc b as part of a City or Fire District approved fuel modification program. 1.1.7 Utilize grading permit procedures to ensure that site designs for development proposals for hillside areas conform to the natural terrain, and consider the visual aspects. 1.1.8 Work with the appropriate jurisdictions to protect prominent ridges, slopes, and hilltops in and adjacent to the City and its sphere of influence, such as the hills in the City of Industry, west of the 57 Freeway at Grand Avenue, the hills within the County of Los Angeles (Rowland Heights), west of the 57 Freeway, south of Brea Canyon Cutoff, the portion of Tonner Canyon within the Chino Hills Specific Plan, and the portion of Tonner, Canyon within the City of Brea (Orange County). 1.1.9 Enact provisions and techniques that enhance groundwater recharge and local water recovery. Objective 1.2 Where ecologically feasible, maintain, protect, and preserve biologically "significant habitats, including riparian areas, oak and walnut woodlands, and other areas of natural significance, providing only such recreational and cultural opportunities as be developed in a manner sensitive to the environment. Strategies: , 1.2.1 Ensure that all development, including roads, proposed adjacent;to riparian and other biologically sensitive habitats avoid significant impacts to such 'areas. Require that new development proposed in such locations be designed to: ® Minimize or eliminate impacts on environmentally sensitive areas; ®. Create buffer areas adjacent to the sensitive area, incorporating the most passive uses of the adjacent property; DIAMOND BAR. GENERAL PLAN: RESOURCE MANAGEMENT June 3, 1992 111-9 • Protect the visual seclusion of forage areas from road intrusion by providing vegetative buffering; o Provide wildlife movement linkages to water, food and nesting; • Provide vegetation that can be used by wildlife for cover along roadsides; and • Avoid intrusion of night lighting into identified areas through properly designed lighting systems. ® Avoid blocking of wildlife corridors and migration paths by fences or other obstructions. • Replace fresh drinking water for wildlife when natural water areas are removed or blocked. 1.2.2 Preserve existing mature trees and vegetation within existing natural and naturalized areas to the extent feasible. a. Natural vegetation is to be removed only as is necessary to locate approved development and the construction of needed infrastructure. b. Prepare a tree preservation ordinance that requires developers and residents to protect, maintain, or otherwise preserve healthy mature oak, walnut, pepper and sycamore trees. The ordinance should emphasize preservation of these species in place, whenever. feasible, should provide a replacement mitigation plan for trees of 6 inches or greater in diameter when removal is necessary. C. Incorporate, where feasible, the input of a certified arborist, landscape architect, and/or qualified horticulturist into . the review and approval of landscape proposals through a design. review, process. 1.2.3 In conjunction with local schools and volunteers, the City will participate in an environment education program, for the use of open space lands. a »u 1.2.4 Pursue preservation of canyon areas in their natural state. , ,..pub - , 1.2.5 Incorporate,where feasible, the input of a certified arborist,landscape architect, and/or qualified horticulturist into the review and approval of landscape proposals through the design review process. recreation facilities which meets the active Objective 1.3 Maintain a system of and passive recreational needs of Diamond Bar residents of all ages. Strategies: 1.3.1 Develop Recreation facilities emphasizing active and .passive. recreation areas. The a development of a community center, the acquisition of traditional neighborhood parkland including community athletic fields should be pursued. DIAMOND .BAR GENERAL PLAN:` RESOURCE MANAGEMENT III -10 June 8, 1992 • Improve and enhance existing recreation areas. • Pursue joint public/private development of recreation facilities. • Develop and maintain a comprehensive inventory of recreation facilities and update the facilities to ensure that the City's needs are being met. • Actively pursue land acquisition for parks. • Pursue preservation of various hillside areas and other. scenic : resources which are important to the City's image. • Initiate a program of identifying environmentally significant areas in the.City and the sphere of influence, and analyze the possibility of protecting any unique or significant environmental features of such areas. • Pursue protection of environmentally significant areas such as, but not limited to: Sandstone Canyon, portions of Upper Sycamore Canyon, the canyons along Brea Canyon Cutoff, and Tonner Canyon.. • Pursue development of an integrated trails system within the community. • Investigate the possibility of integrating this trail system into the golf course property to the west and the open space canyon south of Grand Avenue along the eastern City boundary (which would eventually connect to the LA County Schabarum Equestrian Trail). 1.3.2 Unless: there is an overriding public recreation need, require. that open space areas, other than those described above which are set aside as part of a development project be maintained privately. Require that open space easements be granted over portions of development sites which are set aside for open space. 1.3.3 Prepare and maintain an inventory of open lands which were set aside for open space uses as part of previous development approvals through the County., and designate . 1.3.4 As part of the Development Review process, require verification as to the existence of any potential open space restrictions previously approved on the subject property, prior to accepting development proposals. 1.3.5 Recreational Open Space shall be preserved as recreational open space including, but not limited to, the Diamond Bar Golf Course. 1.3.6 Plan for the development of a'system of greenbelts within the community. DIAMOND BAR GENERAL PLAN:': RESOURCE MANAGEMENT TTT yy June 8, 1992 111-1 1 2.1.5 Be prepared for rationing or supplies of water being limited in case of extended drought. a. Prepare Water Management Regulations that can be implemented should water supplies become severely limited. Potential actions could include restrictions against watering of sidewalks, excessive runoff from irrigation, yard watering on.alternate days, etc. 2.1.6 Review existing landscaping standards and encourage modification of certain land -use practices through xeriscaping and other drought -tolerant plants for new developments. Objective: 2.2 Encourage efficient use of energy by minimizing the consumption of energy resources to the minimal amount needed to support existing and planned land uses, through a combination of efficient land use patterns and passive and active energy, consenation systems. Strategies: 2.2.1: As a general principle, replace total dependence on nonrenewable, imported energy resources with a greater reliance on locally available renewable resources to a degree which is feasible and in accord with currenttechnology. 2.2.2 In conjunction with review of development applications, require the incorporation; where feasible, of the following: o Provide for ' clusters of buildings with protected: indoor or plaza/open areas within multiple family residential, commercial,. and office' projects to promote protection from the wind and sun. a Construct internal' roadways of the minimum widths necessary' for safe circulation in order to minimize solar reflection and heat radiation from impervious material. o Where possible,' tette rttrnttz reflective surfaces' (i.e. parking lots) on the north and east side of buildings; alternatively, where parking areas, must be located to the south or west of buildings, provide additional landscaping to reduce heat gain. o Orient the maximum amount of glass possible toward the south, the side with the. greatest amount of. solar, collection (heat gain potential)`, in combination with other measures for shading to mitigate against summer heat. Use appropriate. building shapes and locations in order to promote maximum feasible solar access of individual units: ® Design individual buildings to maximize natural internal lighting through interior court wells, interior court areas, skylights, clerestory windows, and energy efficient building shapes. DIAMOND BAR GENERAL PLAN: RESOURCE MANAGEMENT 14 June June 8, 1992 6. HAZARDOUS MATERIALS Hazardous wastes will continue to be an important community concern. The potential for accidents involving hazardous materials is of concern to local residents. ISSUE ANALYSIS: The City should develop policies to clearly idents potential sources of hazardous_ materials and how accidentsoremergencies involving such materials will be handled. 7. AIR QUALITY Air quality is still considered a major detractor to the quality of life in Diamond Bar, even though the vast majority of it is generated elsewhere. While the City has little control over regional pollutants, it can take a proactive position on this issue by stating its intent to minimize the generation of local air pollution. It can also take advantage of the location of the South Coast Air Quality Management District (SCAQMD) office 'in Diamond Bar to offer itself as a "testing laboratory" for programs to reduce air pollution, where such programs could be safely undertaken, thus establishing Diamond Bar as a model city for innovation in Southern California. ISSUE ANALYSIS: The City should work cooperatively with local agencies to develop innovative policies for reducing regional air pollution, in addition to implementing the current programs of the South Coast Air Quality Management Plan. 8. NOISE Noise is presently a problem for local residents along freeways and major roadways, generally only during peak hours. However, noise problems will. increase as traffic and population increase, especially where development is built in areas that previously acted as buffers or barriers to local noise. As the population of the City and region increases, there will also be an increase in infrequent urban noise sources. While noise may be not be a significant problem compared to other cities, a quiet environment is typically a major factor in rural living, and more than likely contributes to the high quality of life perceived in Diamond Bar. ISSUE ANALYSIS: Emphasizing its importance to a rural lifestyle, the City needs clear policies on how it will keep noise, primarily from major roadways, from impacting existing as well as future residents. Ii. PUBLIC HEALTH AN SAFETY GOADS, OBJECTIVES, AND STRATEGIES "IT IS THE OVERALL GOAL OF THE PLAN FOR PUBLIC HEALTH AND SAFETY TO PROVIDE A SAFE AND HEALTHY ENVIRONMENT FOR THE RESIDENTS OF DIAMOND BAR. " GOAL 1 "Create a secure public environment which minimizes potential loss of life and property., damage, as well as social, economic, or environmental disruption resulting from natural and: manmade disasters. DIAMOND'BAR GENERAL PLAN: PUBLic HEALTH 'AND SAFETY 7jT —v June 8;'1992 l Y physical injury, and property damage from seismic Objective 1.1 Minimize the potential for loss of life, groundshaking and other geologic events. Strategies: 1.1.1 Ensure that new facilities which will be required for provision of emergency services following a seismic or geologic event are designed so as to withstand the maximum credible event, and to remain f inetional after the event. 1.1.2 As part of the development review process, require site-specific analysis.of soils and other conditions which might e€fet affe the severity of onsite impacts from maximum credible seismic and geologic events. Objective 1.2 Eliminate the potential for loss of life, and minimize physical injury, property damage, public health hazards, and nuisances from the effects. of a 100 -year storm and associated flooding. Strategies: 1.2.1: . As a prerequisite to new, development or the intensification. of existing development, ensure that. a, drainage study has been completed by a qualified engineer, certifying that the proposed development will be adequately protected, and that implementation of the development proposal will not create'new downstream flood hazards. 1.2.2 The City will develop a master plan of drainage, including an inventory of existing facilities, based on `previous work by the Los Angeles County Public Works Department and present development plans, to adequately assess existing and future flood control needs and improvements within Diamond Bar. 1.2.3 The City will prepare a capital improvement program for flood control improvements needed to complete. a master plan of drainage. This schedule will be coordinated with improvement plans by the County and address funding and timing of prioritized improvements. Objective 1.3 Ensure that properties in and adjacent to wildland areas are reasonably protected from wildland fire hazards without degrading the viability of natural ecosystems, providing a balance between removal of flammable vegetation, introduction of fire resistant vegetation, and preservation of natural` vegetation. Strategies: 1.3.1 Where development is proposed within areas potentially subject to wildland fire hazards, ensure that the Consolidated Fire District has the opportunities to review the proposal in terms of its vulnerability to fire hazard and its potential source as a source of fire. Ensure that Fire Department recommendations regarding mitigation of fire hazard ,risks are addressed. . D;IAbiOND BAR GENERAL PLAN: PUBLIC HEALTH AND SAFETX- IV-7 June 8, 1992 .1.3.2 Ensure that new development in areas subject to wildland fire is adequately protected in a manner which minimizes the destruction of natural vegetation. Prioritize this balance as follows: ® Protection of existing developed areas and areas currently approved for development. ® Preservation of significant biological resources to the extent feasible. develepme� Objective 1.4 . Ensure an adequate distribution offire stations, equipment, and manpoweri':etrr such that a maximum five minute response time to all areas other than wildland 'areas wherein a six minute response time capability ean be mabitaimedL.it{?ize?r Strategies: 1.4.1 Work.with.the Fire District to establish a funding mechanism which would ensure that cost of providing new facilities and equipment, including paramedic services, to support.new development is assessed against the developments creating that need. 1.4.2 Where appropriate, support increased protection levels from that provided by the minimum fire standards included in the Uniform Building and Fire Codes (UBC and UFC). Objectivel.5 Minimize the risk and fear of crime through physical planning strategies that will maximize surveillance opportunities, minimize opportunities for crimes, and by creating a high level of public awareness .and support for crime prevention. Strategies: 1.5.1 Require that proposals for new development and for the intensification of existing. development are reviewed by the Sheriff's Department prior to approval. 1.5.2 Promote the establishment of neighborhood watch and business watch programs to encourage community participation in the patrol of neighborhood and business areas, and to facilitate increased awareness of potential criminal activities. Objective 1.6 Promote the provision of adequate medical and emergency services to Diamond Bar residents. Strategies: 1.6.1 Coordinate with appropriate agencies for the provision of evacuation and ambulance services within acceptable service levels and response times. DIAMOND BAR GENERAL PLAN: PUBLIC HEALTH AND SAFETY'' p June8, 1992 - IV -8 VI. PUBLIC SERVICES AND u ACILITIES A. INTRODUCTION State law does not require. the preparation of a general plan element dealing specifically with public services and facilities. However, it does state that... "The general plan may include any other elements or address any other subjects which, in the judgement of the legislative body, relate to the physical development of the county or city" (Government Code Section 65303). Diamond Bar, as a new City, faces many decisions as how to best provide services to the public, and what types of facilities it needs to build to support those services. Therefore, a local General Plan element dealing with the long-term provision of municipal services and facilities is appropriate for Diamond Bar. The actual provision of various public services has already been addressed in the following sections of the Diamond Bar General Plan: I. Plan for Community Development Land Use (for all services & utilities) III. Plan for Resource Management Parks and Recreation Water (and Reclaimed Wastewater) Energy .Systems Solid Waste. IV. Plan for Public Health and Safety Flood Control Police Fire Emergency Services Disaster Preparedness The Plan for Public Services and Facilities seeks to tie the provision of these various services and facilities together into an integrated strategy for.municipal management. The Plan focuses on: Identifying City facilities and services needed to'sustain the community's high quality of life ® Long-range planning to fund City services and buildings ® Coordinating and cooperating with various local agencies to provide those services not provided by the City. Objective 1. 2. Establish. and implement comprehensive and equitable solutions. to the financing of public facilities and services. Strategies: 1.2.1 Establish a development fee structure which ensures that costs for new capital facilities and expansion of p i existing facilities necessitated by proposals for new development and intensification of existing development are internalized by those projects, to the percentage appropriate to the development. 1.2.2 Investigate the establishment of proven financing techniques and mechanisms in combination with programmed capital improvements to facilitate the provision of desired community facilities. Objective 1.3 Ensure that all Diamond Bar residents have access to high quality local educational facilities, regardless of their socioeconomic status or location within the City. Strategies: 1.3.1 Pursue a cooperative program with the City of Industry and the Pomona Unified School district to secure land and construct a high school in the Pomona Unified School District in the City of Diamond Bar such as within the Tres Hermanos Ranch. As part of high school development, pursue development of a major joint use recreational facility (e.g. pool, ball fields, fep#'i stadium, gymnasium). 1.3.2 Work closely with the Walnut Valley and Pomona Unified School Districts on an ongoing basis to resolve issues such as joint use of facilities, location of new facilities, and, alternative use of vacant or unused sites. Objective 1.4 Ensure the provision of cultural facilities, such as educational institutions, museums, and performing arts facilities, to meet the needs of Diamond Bar residents. Strategies: 1.4.1 Pursue the acquisition of a site and development of a civic center, including a multi -use community center. 1.4.2 Work with surrounding jurisdictions to establish joint development of cultural facilities of regional significance, such as a performing arts center and a natural and cultural museum. 1.4.3 Explore the possibility of locating a major, institution of higher learning in Diamond Bar. 1.4.4 Work with Los Angeles County to insure adequate library services are provided. DIAMOND BAR GENERAL PLAN: PUBLIC SERVICES AND FACILITIES VI -5, lane 8, 1992 , GOAL 2 "Achieve a fiscally solvent, financially stable community." Objective 2.1 Provide sufficient opportunitiesfor retail and other nonresidential conunercial and ofce uses as is necessary to ensure adequate municipal income to finance desired conwwniiy amenities. Strategies: 2.1.1 Promote the intensification of the sales tax -generating potential of existing commercial and office areas within the City (also see provisions in the Land Use section of the Plan for Community Development). 2.1.2 Work with State officials and local elected representatives to make a determined effort to promote legislation for distribution of sales taxes to local agencies reflecting a combination of the location where the sales tax was collected and an equitable distribution based on population. 2.1.3 Pursue the expansion of municipal boundaries to areas which can be utilized to assist in the provision of sufficient municipal income to provide the high level of services and facilities demanded by. Diamond Bar residents. 2.1.4 Prepare and maintain a municipal cost/benefit model. Objective 2.2 Promote efficiency in the provision of public services and facilities. Strategies: 2.2.1. Conduct an annual review of user charges, development fees, and public facilities impact mitigation. fees in accordance with California Government Code 'Section 660 et al,. (AB 1600) to ensure that the charges are consistent with the costs of improvement and maintenance, and that public services and facilities are being expanded in a cost-efficient manner. Objective 2.3 Promote "a balance of public and private provision of services and amenities to the tonin unity. Strategies: 2.3.1 Identify and pursue opportunities for private provision of services and facilities within the City of Diamond Bar, including joint public/private efforts: 2.3.2 Explore joint or cooperative use of facilities owned or constructed by other public agencies. Potential locations include, but are not limited. to, the Pomona Unified School District high school site in the Tres Hermanos area; Site "D". owned by the Walnut Valley Unified School District off of Diamond Bar Boulevard east of the 57 Freeway; South Pointe Middle School; and the Walnut Valley Unified School District school/office site on Lemon Avenue just north of the 60 Freeway. 2.3.3 Provide regular information to citizens regarding current issues; public safety information, resource `management information, city services, public meeting al collection programs, etc. schedules, hazardous mated DIAMOND GENERAL PLAN:. PUBLIC SERVICES AND FACILITIEYSTI-6 June 8, 1992 V V. PLAIN FOR PHYSICAL MOBILITY A. INTRODUCTION The purpose of the Diamond Bar Plan for Physical Mobility is to evaluate the transportation needs of the City and present a comprehensive transportation plan to accommodate those needs. Located at the convergence of Route 57 and Route 60, at Los Angeles County's borders with San Bernardino and Orange Counties, Diamond Bar's traffic circulation has been significantly impacted, in fact dominated, by regional traffic needs. The focus of this plan is the identification and evaluation of local circulation needs of the City of Diamond Bar, balancing those needs with regional demands and mandates. It has been developed to wide the orderly improvement of the circulation system within the City in a manner which will protect the quality of Iife which is Diamond Bar and in direct response to the City's Land Use Element. The overall intent of the Circulation Element is to provide safe and efficient movement between homes and jobs, stores, schools or parks within the City. Under State planning law, each city must develop and adopt a comprehensive long-term general plan for the physical development of that city. The following is a mandatory requirement relating to city transportation planning: Government Code Section 65302(b): A circulation element consisting of the general location and extent of existing and proposed major thoroughfares, transportation routes, terminals, and other local public utilities and facilities, all correlated with the land use element of the plan. This is the first circulation element prepared for the City of Diamond Bar. Although it is a new city, it is not a newly developing city, but rather one that is largely built out. Many strategic decisions related to transportation facilities (e.g., locations of roadways) were made at the County level, prior to its incorporation. This circulation element provides the first opportunity to evaluate how best to utilize these facilities, from the perspective of the City of Diamond Bar, its residents, businesses, and other users of City services. The Plan for Physical Mobility addresses the following issues: * Streets and Highways ® Transit and Paratransit Services 0 Railroad Lines ® Bicycle and Equestrian Trails ® Aviation ® Goods Movement CITY O.F .DIAMOND BAR PLAN FOR P:HY'SACAL 'MOBILITY June 8, 1992 33699.DBPolicy.Doc V-1 B. EXISTING CONDITIONS . This section documents the circulation system infrastructure and its operating conditions. within the City of Diamond Bar as of late 1990/early 1991. It also provides an evaluation of the adequay of the system to accommodate existing travel demand. The components of the circulation system in the City of Diamond Bar include the following: 0 Streets and Highways 0 Transit and Paratransit Services © Railroads 0. Bicycle and Equestrian Facilities a Aviation Q Goods Movement The basic components of the Diamond Bar circulation system are described below. 1. STREETS AND HIGHWAYS Functional Classification The two major considerations in classifying the City's street network functionally are access to adjacent properties and movement of persons and goods into and through the City. , City streets are classified by the relative importance of these two functions assigned to them. The classification of streets is essentially a determination of the degree to which access functions are to be emphasized at the cost of the efficiency of movement or discouraged to improve the movement function. The design and operationof each street, therefore, depends upon the importance placed on each of these functions. For example, streets designed to carry large volumes of vehicles into and through the City have more lanes, higher speed Iimits, and fewer driveways, while residential streets have fewer lanes, lower speed limits, and more driveways to provide access to fronting properties. The functional classification system allows the residents and elected officials to identify preferred characteristics of each street. If observed characteristics of any street change from the functional classification, then actions can be taken to return the street to its originally intended use.or to change the designated classification. For example, if traffic volumes and speeds on. a residential street exceed ' expected levels, then measures can be implemented which are designed to lower traffic volumes and reduce speeds. Under the Circulation Element of the County of Los Angeles, roadways within Diamond Bar were categorized into four functional classification types: ® Freeways 0 Arterial Streets 0 Collector Streets (a Local Residential Streets Figure 2-1, displays the City's existing freeway and arterial networks. CITY OF DIAMOND BAR PLAN FOR PHYSICAL MO`BILIT'Y June $, 1992 -2 33699.DBPolic).Doc V The following section describes the geometric and operational characteristics defined for freeways, arterial streets, collector streets and local residential streets in the City. The descriptions are generally grouped by facility type and include the number of lanes, curb -to -curb pavement width, .presence of on -street parking, median, bike lanes or truck restrictions, and average daily traffic volume. Freeways generally provide inter -regional access. Their primary function is to move vehicles through the City, thus, .there -is-not access_ to adjacent land, limited access to arterial streets. Freeways contain anywhere from 4 to 12 lanes with recommended design volumes from 65,000 to 205,000 depending on geometric designs which permit high travel speeds. Arterial streets are generally the commercial arteries. They carry the majority of traffic entering or traveling through the City. A major arterial would contain either four or six lanes of through traffic, plus left -turn lanes. Minor arterials serve the same function as major arterials, but have four lanes of through traffic and may may not have separate left -turn lanes. Recommended design volumes on arterials range from 30,000 to 60,000 depending on number of lanes and left -turn movements. Arterials serve two primary functions: to move vehicles into and through the City, and to serve adjacent commercial land uses. Driveways and other curb cuts along arterials are generally limited to minimize disruption to traff=ic flow. Collector Streets are intended to carry traffic between the arterial street network and local streets or directly from the access drives of higher intensity land uses. Collector streets are not intended to carry significant amounts of through traffic. The category of collector street is further subdivided into collector streets and residential collector streets. Collector streets serve business or higher density attached residential land uses. They are generally two and four lane. roadways which serve a mixture of residential and more intense land uses and may carry traffic from residential collectors to the arterial street network as well The average daily traffic volume on a collector street can be up to 20,000 vehicles per day. A residential collector street generally carries traffic between residential neighborhoods and the arterial street network. They are generally two-lane roadways which have residential or a mixture of residential and commercial -land uses along them. Average daily traffic volumes on minor collector streets are generally less than 10,000 vehicles per day. Higher density residential land uses or side yards of single family homes may be located adjacent to collector streets. Higher traffic volumes may be acceptable on certain collector streets such as those with fronting commercial development or extra wide cross sections. CITYyOF DIAMOND BAR PLAN FOR PHYSICAL MOI3ILITY June 8, 1992 V-3 . 33699.DBPolicy.Doc I. NOT 17 (s TO SCALE .. CAOS$IN() _ �c1 ' Local residential streets are designed to serve adjacent residential land uses only. They allow access to residential driveways and often provide parking for the neighborhood. They are not intended to serve through traffic traveling from one street to another, but solely local traffic. Traffic volumes on a residential street should not exceed about 2,500 vehicles per day and 200-300 vehicles per hour. The maximum residential traffic volume which is acceptable to persons living alon�x a street may vary from one street to another depending upon roadway width, type of dwelling units (i.e., high density apartments versus single-family homes), presenceof schools and other factors. The maximum volume of 2,500.is, therefore, to be used as a guide only. Local residential streets include those streets predominantly residential in terms of adjacent property use, and are intended to retain a residential character. Existing Roadway Operations Roadway traffic operation is generally evaluated by the ratio of existing daily traffic volumes to the daily roadway capacity. Capacity is measuredinterms of the ability of the street system to meet and serve the demands placed on it. It is generally considered the most practical measure of how well the mobility needs of the City are being met. Average daily capacity is the theoretical maximum number of vehicles that can pass over a segment of roadway in 24 hours. The capacity of a roadway is affected by a number of factors including roadway type, street and lane widths, the number of travel Ianes, the number of crossing roadways, signal cycle king, the number of driveways, pavement conditions and length, the absence or, presence of on -street par roadway design. Level of service. C volumes are used to define the maximum desirable volumes as the evaluation criteria for this study. Table 2-1 presents the maximum desirable service volumes of various roadway configurations for different levels of service. 'fable 2-1 Baily Roadway Capacity Values Functional Maximum Average Daily Volumes by Level of Service Type of Roadway Classification A 13 C D E 6 Lanes Divided Major Arterial 33,900 39,400 45,000 50,600 56,300 4 Lanes Divided Minor Arterial 22,500 26,300 30,000 33,800 37,500 4 Lanes (Undivided) Collector 15,000 17,500 20,000 22,500 25,000 2 Lanes (Undivided) Collector/Residential Collector 7,500 8,800 10,000 11,300 12,500 2 Lanes (Undivided) Local Road 1,875 2,190 2,500 2,810 3,125 Table 2-2 lists existing average daily volumes and volume -to -capacity ratios along arterials while Figure. 2-2 displays these ,daily traffic volumes graphically. Most values shown are based either upon single day counts or an average of multiple daily counts for typical days, generally accepted to be Tuesday through CITY OF DIAMOND BAR PLAN FOR PHYSICAL MOBILITY June 8, 1942 - 33699. DRPolicy. Doc V-5, Thursday with traffic unaffected by holidays, inclement weather, or other impediments to normal traffic conditions. Average daily volumes obtained prior to 1990 have been modified by an annual growth factor of 2%. Intersection Operations Operating conditions have been analyzed at 31 key signalized intersections and three unsignalized intersections. Traffic volumes for each intersection were collected on atypical weekday during AM and PM peak traffic periods. Morning peak hour counts were taken between 7:00 AM and 9:00 AM, and evening peak hour, counts were taken between 4:00 PM and 6:00 PN4. The Intersection Capacity. Utilization JCU)'was the methodology,used to determine operating levels of service at signalized intersections. Level of service values were assumed, as shown in Table 2-3., Within urban areas, LOS D is typically assumed to be the maximum acceptable LOS during peak hour traffic. At LOS E, congestion begins to occur in quantities and for durations beyond acceptable limits. Although it is theoretically impossible to observe LOS F, it serves to .indicate that the travel demand for the intersection exceeds the capacity. Without mitigation measures to increase the capacity of the intersection during the peak hour. The duration of the congestion during LOS E and LOS F, congestion will occur is dependent upon many operational considerations which can be evaluated during the actual operation of the intersection. Hourly lane capacities of 1,600 vehicles per lane per hour were assumed with 0.10 additional increment for yellow or loss time. This is consistent with the most recent recommendations included in the Los Angeles. County Congestion Management Plan. Table 2-4 displays the results of the, level of service analysis for the 33 signalized intersections for both AM and PM peak traffic periods. Figure 2-3 displays these signalized intersections, in addition to AM and PM peak LOS for those intersections with deficient levels of service. During the AM peak period, three signalized intersections in the City operate at level of service E or F and experience very poor operating. conditions and significant delay. The intersections at level of service E or F are: 6 Diamond Bar Boulevard/Brea Canyon Road a Diamond Bar Boulevard/Mountain Laurel Way 0 Pathfinder Road/SB SR-57 ramps The remaining signalized intersections are currently operating at levels of service A through D. during the morning peak periods which indicate acceptable operating conditions. CITY O F D I A M O N D B A R P L A N F O R P H Y S I CA L M O B I L I T Y June 8, 1992 V-6 33699. DBPolicy. Doc Table 2-2 n/o Golden Springs Drive 30,000 32,800 CiIty-of;Diamond_Bar .-Arterials 1.09 1990 Average Daily Traffic and Volume -to -Capacity Ratios 30,000 31,300 1.04 1990 n/o Highland Valley Road _ 30,000 Daily Volume -to Location Capacity (a) Volume Capacity Ratio 30,000 16,700 0.56 Diamond Bar Boulevard: Colima Road: c/o Brea Canyon Road 30,000 17,400 0.58 s/o Fountain Springs Road 30,000 20,700 (b) 0.69 s/o Pathfinder Road 30,000 27,000 (b) .0.90 n/o Pathfinder Road 30,000 - 28,200 0.94 s/o Grand Avenue 30,000 31,000 1.03 n/o Grand Avenue 30,000 24,400 0.81 n/o Steep Canyon Road 30,000 25,000 (b) 0.83 s/o Golden Springs Drive 30,000 29,300 0.98 33699.Table2-2 n/o Golden Springs Drive 30,000 32,800 1.09 s/o Sunset Crossing Road 30,000 31,300 1.04 n/o Highland Valley Road _ 30,000 18,600 (b) 0.62 s/o Temple Avenue 30,000 16,700 0.56 Colima Road: w/o CaIbourne Drive 30,000 17,700 0.59 w/o Lemon Avenue 30,000 19,800 0.66 c/o Lemon Avenue 30,000 19,900 0.66 w/o Pomona Freeway 30,000 22,100 0.74 w/o Brea Canyon Road 30,000 29,200 097 Golden Springs Road: c/o Brea Canyon Road 30,000 19,300 0.64 w/o Copley Drive 30,000 18,000 (b) 0.60 w/o Grand Avenue 30,000 19,700 0.66 c/o Grand Avenue 30,000 20,700 0.69 w/o Prospectors Road 20,000 16,500 (b) 0.83 w/o Diamond Bar Boulevard 20,000 16,600 (b) 0.83 c/o Diamond Bar Boulevard 20,000 16,400 (b) 0.82 w/o Sunset Crossing Road 20,000 10,400 (b) 0.52 s/o Temple Avenue 20,000 10,600 0.53 Grand Avenue: w/o Golden Springs Drive 30,000 27,400 0.91 (a) Capacity represents level of service C traffic flow conditions. (b) 1989 count adjusted by 2% growth factor. 33699.Table2-2 I DKS Associates Table 2-3 Level of Service Interpretation Volume -to Level of Capacity Service Description Ratio A Excellent operation. All approaches to the intersection 0-.60 appear quite open, turning movements are easily made, and nearly all drivers find freedom of operation. B Very. good operation. Many drivers begin to feel 61-.70 somewhat restricted within platoons of vehicles, This represents stable flow. An approach to an intersection' may occasionally be fully utilized and traffic queues start to form. - C Good operation. Occasionally drivers may have to .717.80 wait more than 60 seconds, and back-ups may develop behind turning vehicles. Most drivers feel somewhat restricted. D Fair. operation. Cars are sometimes required to wait .81-.90 more than 60 seconds during short peaks. There are no long-standing traffic queues. This level is eak typically associated with'design practice for peak- periods. erg iods• E Poor operation. Some long-standing vehicular ° .91-1.00 queues develop on critical approaches to intersections. Delays may be up to several minutes. F Forced flow. Represents jammed conditions. Backups Over 1.00 from locations downstream or on the cross street may restrict or prevent movement of vehicles out of the intersection approach lanes; therefore, volumes carried Table 2-4 Pathfinder Rd./SB 57 Ramp 1.24. F - 1990 AM and PM Peak Hour Level of Service Pathfinder Rd./NB 57 Ramp 0.84 at Signalized Intersections 0.73 C Pathfinder Rd:/Brea Canyon Rd. &Fern Hollow Dr. 0.52 A 0.85 D AM Peak Hour PM Peak Hour A Volume -to- Level of Volume -to- Level of Intersection Capacity Service Capacity Service Brea Canyon Rd./Lycoming St. 0.49 A Diamond Bar Blvd./Brea Canyon Rd. 1.32 F 0.88 D Diamond Bar Blvd./Cold Springs Ln. 0.66 B 0.74 C Diamond Bar.Blvd./Sugar Pine Place 0.61 B 0.69 B Diamond Bar Blvd. /Pathfinder Rd. 0.78 C 0.95 E Diamond Bar Blvd./Mountain Laurel Way 0.94 E 0.94 E Diamond Bar Blvd./Grand Ave. 0.80 C 1.26 F Diamond Bar Blvd./Golden Springs Dr. 0.46 A 0.73 C Diamond Bar Blvd./Vons/K-mart Entrance 0.49 A 0.86 D Diamond Bar Blvd./EB 60 Ramp 0.73 C 0.75 C Diamond Bar Blvd./WB 60 Ramp 0.80 C 0.64 . B Diamond Bar Blvd./Sunset Crossinc, Rd. 0.76 C 0.82 D Diamond Bar Blvd./Highland Valley Rd. 0:43 A 0.54 A Diamond Bar Blvd./Temple Ave. 0.90 D 0.97 E Colima Rd./Lemon Ave. 0.59 A 0.72 C Colima RdJEB 60 Ramp 0.66 B 0.73 C Golden Springs Dr./Colima Rd. & Brea Canyon Rd. 0.42 A 0.88 D Golden Springs Dr./Gateway Center Dr. 0.36 A 0.78 C Golden Springs Dr./Copley Dr. 0.39 A 0.64 B Golden Springs Dr./Grand Ave. 0.74 C 0.93 E Golden Springs Dr./Ballena Dr. 0.43 A 0.82 D Golden Springs Dr./Temple Ave. 0.63 B . 0.63 B Grand Ave./EB 60 Ramp 0.58 A 0.75 C Grand Ave./Montefino Ave. 0.64 B 0.82 D Grand Ave./Summitridge Dr. 0.80 C 0.73 C Grand Ave./Longview Dr. 0.56 A 0.60 A 33699.Table2-4:wkl Pathfinder Rd./SB 57 Ramp 1.24. F 0.76 C Pathfinder Rd./NB 57 Ramp 0.84 D 0.73 C Pathfinder Rd:/Brea Canyon Rd. &Fern Hollow Dr. 0.52 A 0.85 D Pathfinder Rd./Evergreen Springs Dr. 0.50 A 0,60 A Brea Canyon Rd./WB,60 Ramp 0.86 D 1.02 F Brea Canyon Rd./Lycoming St. 0.49 A 0.50 A Brea Canyon Rd./Washington St. 0.50 A 0.60 A, Chino Hills Pkwy./Chino Ave. 0.33 A 0.28 A 33699.Table2-4:wkl During the PM peak period, eight signalized intersections experience level of service E or F. Those intersections which experience significant delay are: ® Diamond Bar Boulevard/Pathfinder Road o Diamond Bar Boulevard/Mountain Laurel Way m Diamond Bar Boulevard/Grand Avenue Diamond Bar Boulevard/Temple Avenue ® Golden Springs Road/Grand Avenue Q Brea Canyon Road/WB SR -60 ramps Acceptable levels of service exist at the remaining 30 signalized intersections during PM peak periods. Three unsignalized intersections which exist at Orange Freeway ramps were also chosen for analysis. Both the northbound and southbound Orange Freeway ramps at the Diamond Bar Boulevard/Brea Canyon Cut-off Road are currently controlled by stop signs on the ramp approaches only. The southbound Orange Freeway ramp at Sunset Crossing Road is a "T" type intersection containing a stop sign on all three approaches. Analysis of unsignalized intersections is conducted differently from signalized intersections due to different operating characteristics. At signalized locations, all approaches to the intersection are subject to delay by a red signal intersection. Delay at unsignalized intersections is dependent upon the approach, its requirement to stop, and the distribution of traffic between approaches. Minor Street Stop Controlled Intersections - For intersections where only the minor street is required to stop, only the minor street traffic and left turning traffic from the major street are subject to delay. The major street through movement is never forced to stop to accommodate traffic. A level of service is, therefore, calculated for the minor street traffic movements and the major street left turns only. Major street traffic.is not constrained and measurement of a level of service is not possible. The traffic performing constrained movements at such an intersection must wait for gaps in major street, traffic before proceeding through the intersection. The level of service for any traffic movement is based on reserve, or unused, capacity of the lanes involved. The 1985 Highway Capacity Manual (HCM) procedure for unsignalized intersections was used to evaluate the operating conditions of stop controlled intersections. All -Way Stop Controlled Intersections - The capacity of multi -way stop controlled intersections is a function of the number of approach lanes and of the departure headways of vehicles crossing from a stopped position. At capacity, operations are relatively predictable, with queues developing along each approach and vehicles discharging in a regular manner. The capacity is greatest when the demand volume is evenly split between the crossing facilities. A characteristic of intersections with a 50/50 demand is that vehicle delay tends to be uniform, and because of the regular. discharge pattern, .is tolerated by most drivers.. Lesser capacities and more variable distribution of delay occurs where demand is not as evenly split among the, approaches. Although detailed level of service techniques for this type of intersection are not included in the Highway Capacity Manual, estimated capacities for various geometric configurations and traffic volume` characteristics are presented. CITY OF'DIAM0ND BAR PLAN FOR PHYSICAL MOBILITY June,9, 1992 V-14 33699. DBPolicv. Doc Table 2-5 shows the results of capacity analysis for the three unsignalized intersections studied. Figure 2-3 displays the locations of the unsi�nalized intersections which were analyzed, in addition to AM and PM peak levels of service, intersections with minor street stop control displays the LOS for the movement found to have the lowest level of service. Through Traff <c Traffic on the streets of Diamond Bar consist of motorists who live, work and shop in the City of Diamond Bar plus motorists who are passing through the City but do not stop for any reason. The alignment of the 'City's three most significant arterials,. Diamond Bar Boulevard, Colima Road/Golden Springs Drive, and Grand Avenue results in large volumes of through traffic. The three principal arterial routes within the City of Diamond Bar were found to. have significant percentages of their total traffic volumes comprised of vehicles making through trips. Most of the through trips found along the PM peak. flow direction travel lanes of Diamond Bar Boulevard, Colima Road/Golden Springs Drive, and Grand Avenue were observed exiting the City into San Bernardino County along Grand Avenue. 2. TRANSIT AND PARATRANSIT SERVICES Public bus transit service is provided to the City of Diamond Bar by the Southern California Rapid Transit District (RTD) and Foothill Transit. Both fixed route transit and paratransit service operate within the City of Diamond Bar. Fixed route transit services are typically bus lines which operate on regular schedules along a set route, stopping at predefined bus stops. -Fixed route service can be either local (intracity) or regional (intercity). Paratransit services, more. commonly referred to as Dial -a -Ride, are demand responsive services which provide rides to passengers upon an individual request basis. Although they operate within a defined service area, they do not operate on fixed routes or schedules. Paratransit service typically serve transit dependent persons such as the elderly and handicapped. They often serve major destinations such as hospitals and medical facilities but. may also take passengers to local destinations such as neighborhood shopping centers. CITY OF DIAN40ND BAR PLAN FOR PHYSICAL MOBLLITY June 8, 1992 . V-15 33699.DBPolicy.Doc : Table 2-5 AM and PM Peak Hour Level of Service at Unsignalized Intersections AM Peak PM Peak Intersection Movement LOS LOS Sunset Crossing Rd./SB 57 Ramp All Movements* E A Diamond Bar Blvd./SB 57 Ramps WB Diamond Bar Blvd. Left Turn F A SB 57 Off-ramp Left Turn F E SB 57 Off-ramp Through F D SB 57 Off-ramp Right Turn A A Diamond Bar Blvd./NB 57 Ramps EB Diamond Bar Blvd.. Left Turn C A NB 57 Off-ramp Left Turn F F NB 57 Off-ramp Through E D NB 57 Off-ramp Right Turn A F *All-way stop controlled intersection. 3. RAILROAD LINES There are currently no passenger rail facilities in operation within the City of Diamond Bar. The nearest Amtrak facilities are located in Pomona and Fullerton. The Pomona Amtrak station, which serves the Southwest Chief line, is located at 2701 Geary Avenue and is approximately nine miles north of Diamond Bar. The Fullerton Amtrak station, which serves the San Diegans line, is located. at the corner of Sante. Fe and Harbor Boulevard and is approximately 13 miles to the south. The Union Pacific Railroad is the only freight rail line which serves the City of Diamond Bar. The line lies along the City's northwestern boundary with the City of Industry, and serves the industrial areas north of Walnut Drive and Lycoming Street. 4. BICYCLE AND EQUESTRIAN TRAILS There are three different classes of bikeways which are commonly recognized. " A definition of each bikeway class is presented below: Class I Bikeway (Bike Path) A completely separated right, -of -way for the exclusive use of bicycles (and sometimes pedestrians). Cross-flow is minimized by limiting access to .designated points. Ciass II Bikeway (Bike Lane) .—Routes designated by separately striped lanes and signs along streets or highways. They provide restricted one-way travel for bicycles, although motor, vehicles are sometimes permitted to use the bike lane to make turns and to park... Class III Bikeway (Bike Route) - Roadways in which the travel lanes are shared by motor vehicles and bicycles whose route is designated by signs. only. .This type of bikeway does not providecyclists with increased privileges, but rather, informs motorists of the cycling route. The City currently has two marked bikeways along both sides of the entire lengths of Diamond Bar Boulevard and Golden Springs Drive. Diamond Bar Boulevard and Golden' Springs Drive west of Diamond Bar Boulevard contain Class 1I bike lanes. The width of the bike lanes vary from 12 feet throughout most of the roadway to three feet at a few Iocations with narrower curb -to -curb widths. Most signalized intersection bike lane approaches are striped to permit right turns by motor vehicles. Parking is not permitted within the bike lanes except on Golden Springs near Brea Canyon Road and the northbound lane of Diamond Bar Boulevard between Montefino Avenue and Grand Avenue. Golden Springs Drive north of Diamond Bar Boulevard is designated a Class III bike route on both sides of the roadway.' An additional bikeway is proposed for Brea Canyon Road between Pathfinder Road and Colima, Road. There,are currently. no Class I bikeways within the City of Diamond Bar. The County plans to have bicycle routes serving the region that will connect with local bicycle trails. The county system proposes bicycle trails to enter Diamond Bar at the eastern end of Grand Avenue, and north into the Tres Hermanos property along Tonner Canyon. Surrounding cities have also planned bicycle ' routes to connect into Diamond Bar north along Mission Boulevard (City of.Pomona),, west along Grand Avenue and Brea Canyon Road (the Cities of Walnut and Industry), and west along Colima Road (into Rowland Heights). CITY OF DIAMOND BAR PLAN FOR PHYSICAL MOBILITY June 8,1991-7. V-17: 33699.DBPolicy.Doc There are currently. no official equestrian trails available to the public within ,the City of Diamond Bar, although a series of trails are proposed by the County of Los Angeles. Once completed, these trails will be owned and maintained by the County. 5. AVIATION There are no aviation facilities located within the City of Diamond Bar. Passenger air carrier and air cargo facilities are located at Ontario International Airport located 15 miles to the east. The closest. general aviation airports are Brackett Field in La Verne, approximately nine miles to the north; and Chino Airport in the City of Chino, approximately I 1 miles to the east. 6. GOODS MOVEMENTS Goods movements within the City of Diamond Bar occur primarily through the use of trucks. The City has established a designated truck route plan. Truck routes direct heavy truck traffic onto arterial and collector facilities and away from local (residential) streets. This plan helps control noise and air pollution in residential areas of the City and protects local streets from significant surface damage that might result from heavy truck traffic. North of the combined section of the Orange/Pomona Freeway, it is necessary for freeway traffic to exit onto Diamond Bar Boulevard when .traveling southbound on the Orange Freeway en route to the eastbound Pomona Freeway; and westbound Pomona Freeway traffic bound for the northbound Orange Freeway. The section of Diamond. Bar Boulevard between the eastbound Pomona Freeway ramps andthe northbound Orange Freeway ramps to the north, and Sunset CrossingRoad between Diamond Bar Boulevard and the southbound Orange Freeway ramps are designated truck routes. To enable access to the heavy industrial areas of the City of Industry and the City of Diamond Bar north of Lycoming Street; truck routes are designated in western Diamond Bar along Colima Road between Lemon Avenue and Brea Canyon Road, along both Brea Canyon Road and Lemon Avenue north of Colima Road, and along Walnut Drive. Entrances into the City notify drivers of a five -ton weight restriction for trucks within the City (except for designated truck routes), in addition to parking restrictions which limit commercial vehicles over five tons to 30 minutes. C. PHYSICAL MOBILITY ISSUES 1. FUTURE DEVELOPMENT IN DIAMOND . BAR The levels of development which would be permissible under the proposed General Plan would result in approximately 2,764 additional dwelling units, 1,010,000 square feet of commercial uses and 4,819,000 square feet of office and business park uses. These estimated additional development opportunities within the City will result in corresponding increases in traffic. Estimated tripmaking, within the City is projected to increase from 348,632 average daily trips in 1991 to 465,107 average daily trips in 2010. This represents an increase of 33 percent. ISSUE ANALYSIS:' The City needs policies to address impacts to all streets in Diamond Bar and establish roadway level -of -service standards. CITY OF DIAMOND BAR PLAN FOR PHYSICAL MOBILITY June 8, 1992 V-1 r3 33699. DBPo11cy. Doc 2. PROJECTED GROWTH IN THE REGION In addition to increases in traffic attributable to growth and development within the City of Diamond Bar itself, the City will ,tie impacted by future growth and development in surrounding communities and the region. Increased traffic in the region will impact Diamond Bar through increasedtraffic volumes along the regional transportation facilities including Routes 57 and 60 and Grand Avenue. Estimates of future through traffic along these facilities were obtained from SCAG model data and incorporated into the City's travel demand model. ISSUE ANALYSIS: Vie City needs policies to address impacts to all streets in Diamond Bar and establish roadway level -of -service standards. 3. FUTURE ROADWAY SYSTEM WITHIN DIAMOND BAR Many of the roadway facilities within Diamond Bar are projected to carry volumes of traffic at or in excess of recommended daily capacity. . Diamond Bar Boulevard daily' traffic volumes` along Diamond Bar Boulevard immediately south of Grand Avenue are projected to be double the carrying capacity of a four -lane roadway. South of Grand Avenue to Brea Canyon Road, forecast daily volume along Diamond Bar Boulevard exceed recommended carrying capacity. North of Sunset Crossing, traffic volumes along Diamond Bar Boulevard are projected to be within the carrying capacity of a four -lane roadway. Colima Road Year 2010 traffic volumes along Colima Road west of Brea Canyon Road are, projected to exceed carrying capacity of. this four -lane roadway. From east of Lennon Avenue to the City of Diamond Bar boundary, Colima Road. is forecast to carry traffic at or slightly below the recommended carrying capacity for a four -lane roadway: Golden Springs Road Golden Springs Road is forecast to carry traffic volumes within carrying capacity for a four -lane divided roadway. The portion of Golden springs Road east of Grand Avenue is not a divided roadway and forecast traffic volumes along this segment would exceed capacity. Grand Avenue Year 2010 traffic volume forecasts along the entire length of Grand Avenue within the City of Diamond Bar are estimated to be in excess of the capacity of a four -lane divided roadway. As presently occurs, a significant amount of this traffic is estimated to be through traffic with neither origin nor destination within the City. Brea Canyon Road The section of Brea Canyon Road from Colima Road to Washington. Street is projected to carry traffic volumes requiring the capacity of a six -lane divided arterial. Routes 57 and 60 - Both the Pomona Freeway (SR -60) and the Orange Freeway (SR -57) are forecast to carry traffic volumes significantly in excess of their capacity. This will result in continued congestion along these facilities with spillover onto City streets as motorists seek less congested alternatives. ISSUE ANALYSIS: The City needs to establish roadway classifications and standards for dedication and roadway. improvement. for the principal streets in the City 4. THE DEVELOPMENT OF TONNER CANYON AS AN ALTERNATIVE TRAVEL CORRIDOR AROUND THE CITY OF DIAMOND BAR With significant development planned for the Chino Hills area, both Diamond Bar Boulevard and Grand Avenue are expected , to carry larger through traffic volumes from SR -57 than at present into San Bernardino County. Alternative routes to the south would help relieve future congestion along these and other arterials within the City of Diamond Bar. ISSUE ANALYSIS; Future traffic volumes for selected. arterials in Diamond. Bar have been studied for a. scenario with possible extensions of Soquel Canyon Road and Tanner Canyon Road and a scenario without either of these roadways extended. 5. MAINTAINING GRAND AVENUE'S CURRENT TRAFFIC CARRYING CAPACITY With the completion of the extension of Grand Avenue in the City of Industry, Grand. Avenue provides an even more significant role as a regional arterial, carrying traffic to/from Routes 5/60. ISSUE ANALYSIS: Measures to enhance Grand Avenue within Diamond Bar while maintaining its current traffic -carrying capacity could include: - Grand Avenue maintained as four lanes with increased capacity allowed only for development within the City of Diamond Bar Optimize signal coordination - Reconstruction to improve interchange at Route 57/60 Provide bus turnouts out of travel lanes Provide acceleration and deceleration lanes at Grand Avenue and Diamond Bar Boulevard Table 3-3 City of Diamond liar Roadway Classification Roadway Existing Proposed Width Dedication Improvement Roadway Classification* Classification (ft.) Stds. ft.) Stds. (ft.l. Diamond Bar Blvd. Major 100 100 SO .Colima Rd. Major 100 100 100 Golden Springs Dr. Secondary SO SO S0 Grand Avc. Major 100 100 100 Pathfinder Rd. (c/o Brea Canyon 100 100 - 100 Rd.-Nvest leg) Major Pathfinder Rd. (w/o -Brew Canyon Rd.-west leg) Secondary SO SO S0 Brea Canyon Rd. (s/o Colima Rd.) Secondary SO SO S0 Brea Canyon, Rd. 100 100 100 (n/o Colima Rd.) Major Lemon Ave. Major Residential 100 100 100 (s.. of Colima) Collector Lemon Ave. Secondary SO 80 SO (n. of Colima) Sunset Crossing Rd. Secondary Cul-de-sac SO So 64 Washington St. Secondary Cul-de-sac SO SO 64 `. Beaverhead Dr. Secondary Cul-de-sac ` SO S0 64 Lycoming St. Secondary Cul-de-sac SO SO 64 Brea Canyon Cut-Off Rd. Ltd Secondary 64-50 64-50 64-8O Chino Hills Pkwy. (referred to as Dudley St.) Major 100 100 100 6. EMPHASIZE DIAMOND BAR BOULEVARD AS A LOCAL ARTERIAL Diamond Bar Boulevard presently provides an attractive alternative to the freeway during congested peak hours for commuters. ISSUE ANALYSIS: 77ie City could implement measures to reduce the attractiveness of Diamond Bar Boulevard as a speedy through route during peak conunute hours. Me«rures would inchide: - Signal coordination to increase through travel time along Diamond Bar Boulevard Peak hour turn prohibitions to eliminate the dominant through traffic movements - Special street treatments (e.g., landmarks, entry features, landscaping, pavement treatment, etc.) that convey the special function of Diamond Bar Boulevard as a local street Where appropriate, emphasize access to adjacent land uses (i.e., Diamond Bar as a locally serving commercial corridor) 7. THE WIDENING OF THE PATHFINDER ROAD BRIDGE OVER ROUTE 57 On its own; the widening of the bridge would provide additional needed capacity to accommodate existing peak hour travel demand and improve freeway access. When considered in combination with modifications to Grand Avenue and to Diamond Bar Boulevard, the Pathfinder bridge widening would significantly improve freeway access for existing and future residents in the southern portion of the City. ISSUE ANALYSIS: This project is a committed improvement within the City. 8. CUL-DE-SACING OF SUNSET CROSSING ROAD AT THE CITY'S WESTERN LIMITS AND MAINTAINING WASHINGTON STREET CUL-DE-SAC Sunset Crossing is presently a four -lane roadway providing access to/from a residential area of northwest Diamond Bar. Sunset Crossing west of Route 57 has an interchange with southbound Route 57, extends westerly and terminates east of the City limits adjacent to a park and Little League field. The County of Los Angeles Highway Plan assumes Sunset Crossing is to be extended southwesterly, through the City of Industry to a connection with Washington Street or in the vicinity. The City of Industry is considering development of the area with industrial uses to make maximum advantage of its proximity to freight rail lines. However, the area through which Sunset Crossing is to extend is presently substantially undeveloped. The extension of Sunset Crossing and the proposed development of industrial uses adjacent to this arterial would significantly increase the volume of traffic along Sunset Crossing and introduce a significant number of trucks into this residential area. ISSUE ANALYSIS: The City could implement measures to maintain the integrity of residential neighborhoods. CITY OF DIAMOND BAR PLAN FOR PHYSICAL MOBILITY June 8, 1991 `33699.DBPoticy.Doc 'V-22 D. GOALS, OBJECTIVES AND STRATEGIES Circulation goals, objectives and strategies have been assembled for the City of Diamond Bar to guide. policy makers and City staff in the implementation of the Circulation Element. Coals describe the overall direction for circulation planning within the City, while objectives and implementation strategies were defined in response to each of those goals. Objectives are statements of accomplishments that the City will strive to achieve as part of the circulation planning process, while implementation strategies are actions used to actually achieve the objectives. The goals and objectives are presented in priority rank beginning with the most important, based on direction provided by the City: GOAL 1 Enhance the Environment of the City's Street Network. Work Towards Improving the Problems Presented by the Intrusion of Regionally Oriented Commuter Traffic Through the City and Into Residential Neighborhoods. Consider Programs to Reinforce the Regional Transportation and Circulation System to Adequately Accommodate Regional Needs. Objective. l.1 Participate in local and regional transportation related planning and. decisionmaking: -Strategies: 1.1.1 Prior to permitting connection of roadways from.adjacent jurisdictions into the City of Diamond Bar, ensure that regional benefits are not achieved at the expense of Diamond Bar residents and businesses. 1.1.2 In reviewing transportation improvements, maintain a clear distinction between local and regional objectives. 1.1.3 Ensure the opportunity for public.comment on major changes in operational characteristics of the circulation system. 1.1.4 Identify a transportation corridor through Tonner Canyon. The environmental impacts of the corridor must` be minimized and the corridor must demonstrably benefit the City of Diamond Bar. The City will further require that any proposed transportation facilities be explicitly demonstrated as acceptable to the City: 1.1.5 Solicit federal and state funds to improve area freeways to eliminate use of local streets as part of the freeway system. Objective 1.2 Balance the need for free trajf c flow on City arterials within economic, realities, environmental and aesthetic considerations. - Strategies: CITY OF DIAMOND BAR PLAN'FOR ,PHYSICAL ,MOBILITY June 8, 1992 V-23 33699.DBPolicy.Doc 1.2.1 Prepare programs for traffic control measures 1.2.2 Maintain flexibility in the cross sections and configuration of streets within topographically rugged or environmentally sensitive areas. . Within these areas maintain flexibility in street light requirements. Objective 1.3 Maintain the integrity of residential neighborhoods. Discourage through trafc. Strategies: 1.3.1 Prevent the creation of new roadway connections which adversely impact the character of existing neighborhoods. Implement neighborhood traffic control programs to reduce and divert through traffic. 1.3.2 Through the roadway system, ensure that new. development within the Tres Hermanos Ranch property is integrated into the community of Diamond Bar.. 1.3.3 Design new developments and their access points in such a way that the capacity of local residential streets is not exceeded. GOAL 2 Provide a Balanced Transportation System for the Safe and Efficient. Movement of People, Goods and Services Throughout the City in a Manner Which Will Protect, Maintain and Improve the Quality of Life Which is Diamond Bar. Objective 2.1 Maximize the use of alternative transportation modes within and through the City, and decrease reliance on single passenger automobiles. Strategies: 2.1.1 Maximize the availability and use of public transit service. 2.1.2 Investigate the feasibility of establishing a local transit system. Support privately funded local transit systems for seniors and youths. 2.1.3 Support mixed-use developments, to maximize transportation efficiency. 2.1.4 Pursue a cooperative effort with Caltrans and regional transit providers to develop a major bus transportation facility near or in the City of Diamond Bar adjacent to the 57 Freeway and Grand Avenue. 2.1.5 Encourage participation in carpools. 2.1.6 Coordinate to the extent possible with neighboring cities in the development of a Transportation Demand Management (TDM) plan. CITY OF DIAM0ND BAR PLAN FOR PHYSICAL M013ILItY June 8, 1992 33699.DBPoli y.Doc v-24' 2.1.7 Investigate the potential of using vacant land as park-and-ride sites. 2.1.8 Seek to expand existing park-and-ride facilities at the interchange of SR -57 and SR -60. 2.1.9 Expand and maintain the system of bicycle routes connecting residential areas to major community attractions. 2.1.10 Pursue a cooperative program to provide access for Diamond Bar residents to a regional light rail system. 2.1.11 Pursue a program to improve local freeways to provide carpool lanes. 2.1.12 Develop and promote interconnected equestrian trails. Objective 2.2 Matunize connection of all areas within the City through the circulation systelm Strategy: 2.2.1 Work to ensure that any new development is provided with adequate accessfrom within the City of Diamond Bar. CITY OF DIAMOND BAR PLAN FOR PHYSICAL ',MOBILITY June 8,19927 V-25 33699.DRPolicy.Doc . GOAL 3 Maintain an Adequate Level of Service on Area Roadways. Objective 3.1 Establish a fi4nctional classification system for roarlwaj�s in the City. Strategies: 3.1.1 Maintain level of service C or better at arterial mid -block segments (average daily) and D or better during peak hours at signalized intersections. to the extent possible. 3.1.2 Improve arterial mid -block segments to provide ,average daily service levels of "C" or better to prevent use of local and collector streets as . alternate routes 3.1.3 Improve intersections in the City which currently provide peak.hour traffic service levels worse than "D" where feasible within existing right-of-way and where no significant environmental impact would result. .3.1.4 Develop a pavement management system and maintenance program for all public roadways throughout the City. 3.1.5 Develop a program to expand and maintain pedestrian access routes throughout the City. Objective 3.2 Improve the safety and efficiency of existing transportation facilities. Strategies: 3.2.1 Correct identified street and intersection operating problems in a timely manner. 3.2.2 Improve off-street parking and loading facilities for public schools to minimize the impact on the circulation system. 3.2.3 Consider the addition of lanes to existing streets only as a last resort, to correct traffic conditions or hazards. 3.2.4 Encourage consolidation of commercial drive approaches and prohibition of turning movements where warranted. CITY OF DIAMOND BAR, PLAN FOR PHYSICAL MOBLLITY June 8, 1992 33699MPoliry.Doc V-26 .' Objective 3.3 Explore all available opportunities and mechanisms for funding tratrcportation in�{�rovements. Strategy: 3.3.1 All new development shall be required to provide reasonable miti�,,ation measures or pay traffic impact fees. GOAL 4 Provide or Regulate the Provision of the Supply of Parking to Meet the Needs for Both Residents and Commercial Businesses. Objective 4.1 Ensure compliance with the Southern California Air Quality Management District Regulation 15 trip reduction requirements. 'Strategies: 4.L1 Regulate the provision of preferential parking for high occupancy vehicles wherever possible. 4.1.2 Allow reductions in parking in exchange for transportation demand management programs. Objective 4.2 Provide adequate parking for all types of land use within the City ofDianwnd Bar. Strategy: 4.2.1 Use existing parking demand data sources to update City Code kin, particularly the provision of requirements pertaining to par sufficient parking for land uses generating a high demand for parking. Land Use and Minor Amendments Land Use and Minor Amendments will be considered by the Planning Commission on an ongoing basis. Land Use and Minor Amendments are revisions to, the land use designations of the General Plan, as well as text changes that do not create the need for extension &F -of new urban services to an area. Technical Amendmetils Amendments of this nature are essentially changes to the data base and statistics used in preparation of the plan, changes to correct textual errors, and changes within the text to clarify the meaning of policies and actions as adopted. These will be processed on an ongoing basis. 7. INTERPRETATION OF THE GENERAL PLAN a. Map Boundaries and Symbols In any case where uncertainty exists regarding the location of boundaries of any land use category, proposed public facility symbol, circulation alignment or other symbol or line found on the official maps, the following procedures will be used to resolve such uncertainty: ® Boundaries shown as approximately following lot lines, shall .be construed to be following such lot lines. a Where a land use category applied to a parcel is not mapped to include an adjacent street or alley, the category shall be considered to extend to the centerline of the right-of-way. ® Boundaries shown as following or approximately following the limits of any municipal corporation shall be construed as following such limits. ® Boundaries show -h as following or approximately following section lines, half -section lines; or quarter -section lines shall be construed as following such lines. © Boundaries shown as following or approximately following the centerlines of streams, creeks, rivers, or other continuously flowing water courses shall be construed as following the channel centerline of such water courses taken at mean low water, and, in the event of a natural change in the location of such streams, rivers, or other water courses, the zone boundary shall be construed as moving with the channel centerline. Boundaries shown as separated from, and parallel or approximately parallel to, any of the features listed above shall be construed to be parallel to such features and at such distances therefrom as are shown on the map. a Symbols may be used that indicate appropriate locations for proposed public facilities are not property specific. They indicate only the general area within which specific facility should be established. b. Specific Standards Where a, specific numerical standard is set forth in this plan, that number is an interpretation of the underlying General Plan text, and may be varied in application, provided that the standard that is to be varied is found to achieve the same goal as the underlying policy. DIAN10ND BAR GENERAL PLAN IMPLEMENTATION AND MITIGATION. MONITORING PROGRAM, MMP -3: 7c $ s, 1992 C. Competing Objectives and Priorities It is the intent of the Diamond Bar General Plan to present straight s; concepts, and strategies which present the necessary information to make future land use and policy decisions. Despite the requirements of State law requiring internal consistency of the General Plan, the inclusion of goals, concepts, and strategies which are based on competing. issues, is inevitable. a An example of such a case is the requirement for regular watering of areas.heing graded, and the desire for water conservation, Where such competition between issues results in seemingly inconsistent strategies, City decisionmakers will be required to consider the relative priority of such strategies at the time decisions are being made. C. CEQA REQUIREMENTS Adoption of the City of. Diamond Bar General Plan constitutes. a discretionary action by the City. According to the CEQA Guidelines, all discretionary actions or projects must be reviewed by the Lead Agency (in this case, the City of Diamond Bar) to determine their potential effects on the environment. Pursuant to. the City of Diamond Bar's guidelines to implement CEQA, an environmental checklist was .prepared for the General Plan (the "proposed project"). The checklist'concluded that the updated General Plan. might have a significant effect on the environment. A Notice of Preparation (NOP) was issued by the City according to the requirements of the California Administrative Code, Title 14, Sections 15082(a), 15103, and 15375. The NOP indicated that an EIR was being prepared, and invited comments on the proposed project from public agencies and the public at large.. Comments: that were received were addressed during the preparation of the EIR. The Diamond Bar General Plan was prepared in accordance with current CEQA guidelines, as established by the State Office of Planning and Research (OPR). The General Plan EIR addressed existing setting, impacts, and mitigation measures in a general, or macro -scale, fashion. It was intended to address City- wide, or regional, impacts of growth consistent with the City's'goals, objectives, and policies. Due to this regional perspective, the General Plan EIR document fits the definition of a "Program. EIR" under the guidelines of CEQA. As defined in -Section .15168, program EIRs are intended to address macro -scale environmental impacts. One of the major advantages of a program EIR is that it allows the Lead Agency to examine the cumulative effects of a large-scale project, such as the proposed City of Diamond Bar General Plan. Section 15168(b) states:. Use of a program EIR can... .(I) provide an occasion for a more exhaustive consideration of effects and alternatives than would be practical in an EIR on an individual action, (2) ensure consideration of cumulative impacts 'that'mightbe slighted in a case-by-case analysis, (3) allow the Lead Agency to consider broad policy alternatives and program -wide mitigation measures at an early time when the Agency has greater flexibility to deal with basic problems or cumulative impacts." 1. RELATIONSHIP TO FUTURE ENVIRONTIENTAL DOCUMENTATION As noted previously, the General Plan Environmental Impact Reportwasintended to be a program EIR to address macro -scale impacts. It analyzed the macro -scale impacts expected to result, from, future growth consistent with the goals, objectives, policies, and land use designations set forth iri the Diamond Bar General .Plan. This document did not directly examine environmental effects which could or would result from specific projects located on specific sites within the City. DIAMOND BAR GENERAL PLAN IMPLEMENTATION AND. MITIGATION MONITORING PROGRAM MMP -4 TUNE 8, 1992 1.1.2 Identify commercial land use categories New Program City Council, upon Ongoing General fund; to provide for a range of retail and Planning Commission development service uses to serve City needs and to recommendation review fees guide development within the City and " its sphere of influence. a. Establish General Conunercial(C) areas to provide for regional,' freeway -oriented, and/or community retail and service — - -- _ commercial uses. Developmentof General Commercial areas will maintain a floor area ratio (FAR) between 0.25 and 1.00. b. Identify Commercial Office (CO) land use areas on diverse, mixed use commercial retail, office, and service properties. Development within Commercial Office areas will maintain an FAR between 0.25 and 1.00. c. Identify Professional Office (OP) areas to provide for the establishment of office -based working environments for general, professional, .and administrative offices, as well as support uses. 1.1.3 Areas designated Light Industrial(I) on New Program City Council, upon Ongoing General fund; the General Plan Land Use map are to Planning Commission development provide for light industrial, research and recommendation review fees development, and office -based industrial .firms seeking a pleasant and attractive working environment, as well as for business support services, and commercial uses requiring more.. land areas than is available in General Commercial or Commercial Office areas. These areas will maintain a maximum floor area ratio of 0.25 to 1.00. 1.1.4 The Public Facilities(PF) designationis New Program City Council, upon Ongoing General fund; designed to identify existing or potential Planning Commission development (future) sites for necessary .public recommendation review fees facilitiesor infrastructure improvements. The primary purpose of land designated as Public Facilities, is to provide areas for the conduct of public and institutional activities, including but not necessarily limited to, local, State, and federal agencies, special districts, and both public and private utilities. These uses maintain. development standards which do not exceed that of the most restrictive adjacent designation. 1.2.5 Maintain residential areas which provide Existing Planning Department; Ongoing d eeral'nt fucnd; P .for a suburban lifestyle, including Program development review review fees: ownership of single family housing. bodies a. Within areas designated for Ltiw Density and Low -Medium Residential uses, limit land uses to single family detached residential. b. New development shall be compatible with the prevailing character of, the surrounding neighborhood. Existing r Department; Planning Ongoing General fund;, development Broaden the range of, and encourage innovation in, housing types. Program development review review fees bodies a. Require developments within Medium ,Density areas to provide amenities such as common usable, active open space and recreational areas. New Program Community Ongoing General fund; development 1.2.7 Where consistent with the other provisions of the Diamond Bar General Development P review fees Plan, encourage the provision of low Director; and moderate cost housing (see also development review Housing Goals, Objectives, and bodies Strategies in this document). 1.2.8 Provide density bonuses of 25 percent or Existing Community Ongoing Generalfwtd; development more for projects which provide: Program. Development review fees Director, a minimum of 10 percent of its development review' a. units at rates affordable to housing bodies low and moderate income households; or b, exemplary design and significant amenities beyond minimum requirements. Existing Planning Department Ongoing _ Development review fees 1.2.9 Density calculations for development proposals that offer significant Program —muni- amenities may include land co previously designated as open space if clustering and/or the transfer of development rights are utilized to protect those open space resources determined to be significant by the City. This process would allow a property owner to "transfer" all or par[ tj# the development potential of an entire site (either units or buildings) to a smaller portion of the site, thus preservingthe remaining land. DIAMOND BAR GENERAL PLAN IMPLEAIENTATION AND MITIGATION MONITORING PROGRAM MMP -I-4 7t7 -E 9, 1992 . - Objective 1.4 Designate adequate land for educational, cultural, recreational, and public service. activities to nwet the needs of Diantond Bar residents. 1.4.1 Ensure that land owned and purchased New Program Community Ongoing General fund; . for public use by public agencies aye " Development development designated on the Land Use map for Director; City review fees public purposes. manager's office a. Specific uses within the Public Facilities category, as shown on the Land Use map include water facilities, fire stations, schools, parks, libraries, and similar facilities. 1.4.3 Promote joint development and use of Existing Parks and Recreation Ongoing General fund; parks and open space facilities with Program Director; Parks park adjacent jurisdictions; promote Commission development development of joint school/park sites. funds 1.4.3 When a public agency determines that Existing' Community Ongoing General fund land it owns is no longer needed, ensure Program Development that the property is offered to other Director; City agencies, including the City of Diamond Manager's office Bar, for public uses, prior to conversion to private sector use. 1.4.4 Designate and pursue acquisition of a Existing Parks and Recreation Complete site General fund; , centralized site for use as a civic/multi- Program Director; Parks identification park purpose community center. Commission within 1 year development of General funds Plan adoption Objective 1.5 Maintain a feeling of open space within the convtwttity by identifying and preserving an adequate anwunt of open land. 1.5.1 Maintain an inventory of previous Existing Planning Department Ongoing Development, dedications, designations, or decisions Program review fees regarding open space made by the County of Los Angeles and the City. a. The City shall require developers of vacant land to provide appropriate title or other ownership documents to identify any development restrictions on the property. t Con of o en land Existing Parks and Recreation Complete General fund; 1.5.2 :.Coordmate the pro ec i p by the identification and funding of new Program Director; needs assess- P ark City parks, natural or landscaped slopes, ment within 1 year of development funds; or maintenance agreements for private General Plan assessment land in exchange for preservation of adoption; district natural areas. establish, a. Investigate the need for a bond needed funding within issuance to purchase open space six months areas not already protected by open thereafter space restrictions. b. Investigate the need for establishment of one or more Landscapeand Lighting Districts to provide for open space improvements and maintenance. C. Investigate the potential. for establishment of a maintenance district for �.-muF;—privately- ownedT4a.!,� slope areas thus erealong or visiblefrom major roadways. Objective 1.6 Provide flexibility in the planning of new development as a means of encouraging superior design. 1.6.1 Encourage the innovative use of land New Program Community Ongoing Development review fees resources and development of a variety Development p of housing and other development types, Director, development review provide a means to coordinatethe public and private provision of services and bodies facilities, and address the unique needs of certain lands by recognizing s Planned Development (PD) designation, . in which residential, commercial, recreational, public facilities, and other land uses may be permitted. a.- Within the Planned Development classification, all residential land uses considered to be appropriate Within the City of Diamond Bar, as well as support uses (e.g. open space and recreation; public facilities, commercial, limited employment -generating uses), may be appropriate, as determined in the development review process. b. Require that Planned Development projects provide a greater level of community amenities and cohesiveness, achieve superior design, and create amore desirable living .environment than could be achieved through conventional . subdivision design and requirements. BAR GENERAL PLAN In7PLEniENTATION AND 11IITIGATION MONITORING;PROGRAM DIAMOND MMP -I -E JUNE 8, 1992 1.6.2 Encourage the innovative use of land Existing Community Ongoing Development "fees resources and development of a variety Program Development, through review of housing and other development types, Director; completion of provide a means to coordinatethe public development review identified and private provision of services and bodies specific plans facilities, and address the unique needs of certain lands by recognizing n Specific Plan (SP) designation for large scale development areas in which residential, commercial, recreational public facilities, and other land uses may be permitted. a. Encourage development of a specific plan pursuant to the provisions of Government Code Section 65450 for the Tonner Canyon area that will protect its unique biological and open space resources, create fiscal benefits for the City and enhance its infrastructure, while minimizing future adverse impacts to both the human and natural environment of the City, as well as the region. Development which would be appropriate and which could be designed to be compatiblewith the environmental objectives for the area might include recreational, residential, and commercial uses. In addition, the Tonner Canyon Specific Plan should make provision for "a regional transportation corridor. Within this specific Plan area, developmentat an equivalentof 1.0 dwelling units per acre may be permitted. b. Encourage formulation of a spec ific plan pursuant to the provisions of Government Code Section 65450 for the 800 acres in the northeast segment of the City known as Tres Hermanos. This area represents a unique . opportunity to provide facilities of a type and in a manner which take advantage of the site. Facilities appropriate for this site should be designed based upon a vision for the future, and. not merely extend the patterns of the past. Such facilities may include a high schooE'....' er 6'd t risl i7sfitui9ns, reservoir for practical and aesthetic purposes, commercial developments which are not typical of those found in the area, and a variety of residential and other uses which are complementary to the overall objective of having 'a - master planned area. Development within the Tres Hermanos area " DIAMOND BAR GENERAL PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM 7t1i.B 8, 1992 MMP -I-9 Objective 2.2 Maintain an organized pattern of land use which minitnizes conflicts. between .adjacent land uses. 2.2.1 Require that new developments be Existing Community Ongoing Development compatible with.surroundingland uses. Program Development review fees Director; development review bodies 2.2.2 Prohibit the development of adjacent Existing Community Ongoing Development land uses with significantly different Program " Development review fees intensities, or that have operating Director;' characteristics which could create development review nuisances along a common bowidary, bodies unless an effectivebuffer can be created. 2.2.3 Where land uses of significantly Existing Community Ongoing Development differentintensity or use are planned Program Development review fees adjacent to each other, ensure that Director, individual site designs and operationsare development review managed in such a manner as to avoid bodies the creation of nuisances and hazards. 2.2.4 Require that new developments be Existing Community Ongoing; General fund; designed so as to respect the views of Program Development adopt development existing".developments; provide view Director; standards review fees corridors which are oriented toward development review within I year existing or proposed community bodies of General amenities, such as a park, open space Plan adoption or natural features. a. As part of the Development Code, adopt clear standards to identify the extent to which views can, and will, be protected from impacts by new development and intensification of existing development. Objective 2.3 Ensure that future development 'occurs only when consistent with the availability and adequacy of public services andfacilities. 2.3.1 Through the environmental and Existing Community Ongoing Development development review processes insure Program" Development review fees " that adequate services and facilities are Director; available to support each. development. development review bodies 2.3.2 Require new development to pay its fair Existing Community Ongoing; Development - share of the public facilities and offsite" Program Development develop review fees; improvements needed to serve the Director; standards general fund proposed use. development review within 1 year bodies of General Plan adoption GOAL 3. "Maintain recognition within Diamond Bar and. the surrounding region as being a community with a well planned and aesthetically pleasing physical environment." 3.2.3 i Pursue the establishment and expansion New Program. Parks and Recreation Determine General fund; of landscape maintenance districts as a Director; Parks need and assessment means . of 'ensuring the ongoing Commission feasibility district funds niaintenanceof medians and community within 6 entry statements, as well as maintenance months of of landscaping of hillsides along major General Plan roadways. adoption; establish needed _.. funding within I year thereafter 3.3.4 Consider a program to place public art New Program Parks and Recreation Determine General fund; at prominent locations throughout the Director; Parks need and development City of Diamond Bar. Commission feasibility review fees within 6 months of General Plan adoption; establish program, if needed and feasible, within 6 months thereafter 33.5 Encourage the provision and New Program Parks and Recreation Determine General fund; maintenance of neighborhood Director; Parks need and development identification signage. Commission feasibility review fees within 6 assessment months of district funds General Plan adoption; establish program, if needed and feasible, within 6 months thereafter Objective 3.3 Ensure that new development, . and intensification of existing development; yields a pleasant liming, working, or shopping environment, .and attracts interest of residents,. workers, shoppers, and visitors as the result of consistent exemplary design. 3.3.1 Within the urban residential portions of New Program City. Council; upon Ongoing Development the City, require the incorporation_ of Planning Commission review fees open space and recreational areas into recommendation the design of new ,projects., Within topographically rugged and rural areas, emphasize the preservation. of natural landforms and vegetation. 3.3.2 Require in the Development Code that New Program City Council, upon Prepare, General fund; setbacks . from streets and ' adjacent Planning Commission Development development properties relate to the scale of the recommendation Code review fees structure as well as the size of the street provisions for right-of-way. Require that building hearing within setbacks along roadways to --be varied so 6 months of as to avoid a monotonous street scene. General Plan adoption DIAASO','D BAR GENERAL PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM JtrteE 8, 1492 NWP1 1-14 1.1.10 Assure that the zoning ordinance New Program Community Establish fund 6 In lieu housing fund; provides requirements for diversification Development Director, within months of development of residential development. which include more than development review General Plan review fees Developments five (5) urban residential units will be bodies - adoption required to: adoption ., e provide a mix of dwelling unit Existing Community Ongoing types (e.g. single and multi- " multiple family dwelling units available Program family); Development: . • contribute to the City's balance of to very low, low, and moderate income Director; Community affordable housing at ail income households through participation in the levels with the intent that up to ten Development Director percent (10%) of all new housing Mortgage Revenue Bond Program, within the project be affordable to very low, low, or moderate income households; or and use, of other viable economic • pay an in lietty fee to be used by the City for the provisionof resources. Encourage private sector housing affordable to very low, participation in the provision of very low, or moderate income households. low, low, and moderate cost housing by 1.1.11 Establish parking requirements" for Existing City Council, upon Planning Commission Incorporate parking General fund; development housing to a level consistent with the . Program recommendation; requirements review fees occupant's transportation needs. ,such who provide at least 20 percent of the Community into Development Development housing units within prices which are Director; Code proposal development review within 6 bodies months of - General Plan adoption ., 1.1.13 Facilitate the provision of single and Existing Community Ongoing Development review fees " multiple family dwelling units available Program Development: . to very low, low, and moderate income Director; Community households through participation in the Development Director Mortgage Revenue Bond Program, issuanceof Mortgage Cied it Certificates, and use, of other viable economic resources. Encourage private sector participation in the provision of very low, low, and moderate cost housing by offering programs to developers ,such who provide at least 20 percent of the housing units within prices which are affordable to . very low, low, and moderate income households. DIAMOND BAR GENERAL PLAN IAIPLEATENTATION AND MITIGATION MONITORING PROGRAMA II -3 Juj\E 8; 1992 1.1.6 Require that dwelling units, Existing Community Ongoing Development structures and landscaping he Program Development review fees sited in a manner which: Director; development review Protects views bodies Retainsview opportunities Preserves or enhances vistas Preserves mature trees, natural hydrology, native plant materials, and visual interest Vegetatiei:i M 8), be wed- .W n Cs fe rio.* , 0;0 . as part of a. City or Fire District approved fuel modification program. 1.1.7 Utilize grading permit Existing Community Ongoing Development procedures to ensure that site Program Development review fees designs for development Director; Building proposals for .hillside areas Official; development conform to the natural terrain, review bodies and consider the visual aspects. 1.1.8 Work with the appropriate New Program Community Ongoing General fund; jurisdictions to protect Development Director development prominent ridges, slopes, and review fees hilltops in and adjacent to the City and its sphere of influence, such as the hills in the City of Industry, west of the 57 Freeway at Grand Avenue, the hills within the County of Los Angeles (Rowland Heights); west of the 57 Freeway, south of Brea Canyon Cutoff, the portion of Tcnner ,Canyon within the Chino Hills Specific Plan, and the portion of Tonner Canyon within the City of Brea (Orange County). 1.1.9 Enact provisions and techniques New Prograin Community Prepare . General fund; that enhance groundwater Development guidelines development recharge and local water Director; City within 6 review fees' recovery. Council, upon months of ' Planning Commission General Plan recommendation adoption; „ ongoing thereafter ........................ 1.2.3 In conjunction with local New Program Parks and Recreation Initiate General fund; schools and volunteers, the City Director; Parks program park will participate in an Commission within I year improvement env ironrnenteducation program, of Genera( funds for the use of open space lands. Plan adoption Existing Community Ongoing Development review fees; 1.2.4 Pursue preservation of canyon areas in their natural state Program Development funds be Director; park should p-6ued. development review bodies 1.2.5 Incorporate, where feasible, the . New Pro Warn Community Ongoing Development review fees input of a certified arborist, Development landscape architect, and/or Director; qualified horticulturist into the development review review and approval process, bodies Objective 1.3 Maintain a system of recreation facilities which meets the active and passive recreational needs of Diamond Bar residents of all ages. 1.3..1 Develop recreation facilities Existing Parks and Recreation Complete General fund; emphasizing active and passive Program Director; Parks master plan development recreation areas. The, Commission for parks and review fees, funds development of a community recreation park center, the acquisition of within 1 year of General traditional neighborhood Plan approval; parkland including community implement athletic fields should be pursued. program within 1 year thereafter 1.3.2 Unless there is an overriding New Program City Engineer; Ongoing Development fees public recreation need, require, development review review that. open space areas, other bodies than those described above which are set aside as part of a development , project, be maintained privately. Require that *open space easements be granted over portions of development sites which are set aside for open space. 1.3.3 Prepare and maintain an Existing Community Ongoing Development fees inventory of open lands which Program Development Director review were set aside for open space uses is part of previous development approvals through the County: d desigRate ri-wI' efi space. in 0 itery, doom that lands rat press =�,e d as natural 9P PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM MMP -II. DIAMOND BAR GENERAL JusE 8, 1992 2.2.2 In conjunction with review of New Program Community Ongoing Development development applications, Development review fees require the incorporation, where Director; feasible, of the following: development review hod ies Provide for clusters of buildings with protected indoor or plaza/open areas within . multiple family residential, commercial; and office projects to promote protection from " the wind and sun. Construct internal roadways of the minimum widths necessary for safe circulation in .order to . minimize solar reflection and heat radiation from impervious material. . Where possible, laeate miri'isrizc>»>cflective surfaces (i.e. parking lots) on the north and cast side of buildings; alternatively, where parking areas must be located to the south or west of buildings, provide additional landscaping to reduce heat gain. Orient the maximum amount of glass possible toward the south, the side With the greatest amount of solar collection (heat gain potential), in combination with other measures for shadingto mitigateagainst summer heat. Use appropriate building shapes and locations in order to promote maximum feasible solar access of individual units. Design individualbuildings to maximize natural internal lighting through interior court wells, interior court areas, skylights, clerestory windows, and energy efficient building shapes. IV. PUBLIC HEALTH AND SAFETY "7T IS THE OVERALL GOAL OF THE PLAN FOR PUBLIC HEALTH AND SAFETY TO PROVIDE A SAFE AND HEALTHY ENVIRONMENT FOR THE RESIDENTS OF DIAMOND BAR. " GOAL 1. "Create a secure public environment which minimizes potential loss of life and property damage, as well as social, economic, or environmental disruption resulting from natural and manmade disasters." Objective LI Minimize the potential for loss of life, physical injury, and property damage from seismic groundshaking and other geologic events. Responsible;:: , Strategy'` S latus Agency ' Ttmirig `Funding <, l.l.l Ensu re that new facil it ies which wil I be Existing Building Official Ongoing Development required for provision of emergency Program review fees services following a seismic or geologic event are designed so as to - withstand the maximum credible event, and to remain functional after the event. 1.1.2 As part of the development review Existing Community Ongoing Development process, require site-specificanalysisof Program Development review fees soils and other conditions which might Director; Building �rr^*—i#CCtthe severity of onsite Official; development impacts from maximum credible review bodies seismic and geologic events. Objective 1.2 Eliminate the potential for loss of life, and minimize physical injury, property damage, public health hazards, and nuisances from the effects of a 100 -year storm and associated flooding. 1.2.1 'As a prerequisite to new development Existing City Engineer Ongoing Development or the intensification of existing Program review fees development, ensure that a drainage �s study has been completed by qualified engineer; ,certifying that the proposed development will be adequately protected, and that implementation of the development proposal will not create new downstream flood hazards. 1.2.2 Develop a master plan of drainage, New Program City Engineer Initiate master within General fund; Development including an inventory of existing plan .2 years of review fees facilities, based on ,previous work by General Plan the Los Angeles County Public Works Department and present development adoption' plans, to adequately assess existing and future flood control needs and improvements within Diamond Bar. 1.2.3 Prepare a cap ital improvement program Existing City Engineer Ongoing General fund; for flood control improvements needed Program Development to complete a master plan of drainage. review fees This schedule will be coordinated with improvement plans by the County and address funding and timing of prioritized improvements. Objective 1.3 Ensure that properties in and adjacent to wildland areas are reasonably protected from wildland fire hazards without degrading the viability of natural ecosystems, providing a balance between removal of flammable vegetation, introduction of fire resistant vegetation, and preservation of natural vegetation. 1.3.1 Where development is proposed within Existing Community Ongoing Development areas potentially subject to wildland Program Development review fees fire hazards, ensure that the Director; development Consolidated Fire District has (he review bodies opportunities to review the proposal in terms of its vulnerability to fire hazard and its potential source as a source of fire. Ensure that Fire Department recommendations regarding mitigation of fire hazard risks are addressed. 1.3.2 Ensure that new development in areas New Program Community Ongoing Development subject to wildland fire is adequately Development review fees protected in a manner which minimizes Director; development the destruction of natural vegetation. review bodies Prioritize this balance as follows: • Protection of existing developed areas and areas currently approved for development. • Preservation of significant biological resources to the extent feasible. int 9at-ien—e€�i� Objective 1.4 Ensure an adequate distribution of fire stations, equipment, and manpower VIC zraz at...ed such that a maximum five minute response time to all areas other than wildland areas wherein a six minute response time capabilitysv?>acz-eax—be ms-ir��irted. 1.4.1 Work with the Fire District to establish New Program Community Complete fee General fund; a funding mechanism which would Development Director analysis and Development ensure that cost of providing new present to City review fees facilities and equipment, including Council within paramedic services, to support new 1 year of . . development is assessed against the General Plan developments creating that need. adoption 1.4.2 Where appropriate, support increased Existing Building Official Ongoing General fund; protection levels from that provided by Program Development the minimum fire standards included in review fees the Uniform Building and Fire Codes (UBC and UFC). DIAMOND. BAR GENERAL PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM JUNE 8, 1992 MMP -IV -2 Objective 1.2 Establish and implement comprehensive and equitable solutions to the financing of public facilities and sen ices. - 1.2.1 Establish a development fee structure New Program City Council, upon Complete fee . General fund; which ensures that costs for new capital recommendations of structure development facilities and expansion of existing City commissions within I year review fees facilities necessitated by proposals for of General new development and intensification of Plan adoption existing development are internalized by those projects; to the percentage appropriateto the development. 1.2.2 Investigate the estaViishmentof proven New Program Community, Complete General fund; Financing techniques and mechanisms Development director; investigation development in combination with programmed City Engineer; within 6 review Pecs capital improvements to facilitate the Finance Director months of provision of desired community General Plan adoption; facilities. implement findings within I year thereafter Objective 1.3 Ensure that all Diamond Bar residents have access to high quality local educational facilities, regardless Of their socioeconomic status or location within the City. 1.3.1 Pursue a co operative program with the Existing Community, Ongoing Development City of Industry and the Pomona Program Developmet through review fees Unified School district to secure land Director; development adoption and and construct .a high school in the review bodies implementation Pomona Unified School District in the of Tres City' of Diamond Bar such as within Hermanos the Tres.Hermanos Ranch. As part of Specific Plan high ' school development, pursue and construction of development of a major joint use highschool recreational facility (e.g. pool, ball fields teirisc©,fs stadium, gymnasium). 1.3.2 Work closely with the Walnut Valley Existing Community Ongoing General fund; and Pomona Unified School Districts Prograin Development through development on an ongoing basis to resolve issues Director; Parks and implementation review fees such as joint use of facilities, location Recreation Director; of parks of new facilities, and alternative use of City Manager's.office master plan vacant or unused sites. Objective 1.4 Ensure the provision of cultural facilities, such 'as educational institutions, museums, and perforndng'arts facilities; to meet the needs of Diamond Bar residents. 1.4.1 Pursue the acquisition of .a site and Existing Parks and Recreation Identify site General fund; development of a civic center, Program Director; Parks Commission within 6 months of development review fees including a multi -use community General Plan center.. adoption; identify finance mechanism within L year thereafter 1.4.2 Work with surrounding jurisdictionsto New Program Parks and Recreation Identify site General fund; establish joint development of cultural Director; Parks within 6 development facilities of regional significance; such Commission months of review fees as a performing arts center and a General Plan natural and cultural; museum. adoption; identify finance mechanism within I year thereafter, 1.4.3 Explore the possibility of locating a Existing City Manager's office Complete General fund major, institution of higher learning in Program initial Diamond Bar. discussions with UC and CSUC within 6 months of General Plan adoption; ongoing thereafter 1.4.4 Work with Los Angeles County to New Program Parks and Recreation Ongoing General fund; insure adequate library services are Director development provided. review fees GOAL 2. "Achieve a fiscally solvent, financially stable. community." Objective 2.1 Provide sufficient opportunities for retail and other nonresidential commercial and office uses as is necessary to ensure adequate municipal, income to finance desired community amenities. 2.1.1 Promote the intensification of the sales Existing City Manager's Ongoing General fund; tax -generating potential of existing Program office; Community development. commercial and office areas within the Development review fees City (also see provisions in the Land Director; development Use section of the Plan for Community review bodies Development). 2.1 .2 Work with State officials and local Existing City Council; City Ongoing General fund elected representatives to make a Prograin Manager's office determined effort to promote legislation for distribution of sales taxes to local agencies reflectinga cornbinatiop of the location where the sales tax' was collected and an equitable distribution based on population. 2.1.3 Pursue the expansion of municipal . Existing City Council, upon Ongoing General fund; . boundaries to ureas which can be Program Planning Commission I development utilized to assist in the provision of recommendation I review fees V. CIRCULATION GOAL I Enhance the Environment of the.City's Street Network. Work Towards Improving the Problems Presented by the Intrusion of Regionally Oriented Commuter Traffic Through the City and Into Residential Neighborhoods. Consider Programs to Reinforce the Regional Transportation and Circulation System to Adequately Accommodate Regional Needs. Objective LI Assume responsibility for local and participate in regional transportation related planning and decisionmaking. Responsible Strategy... Status ,: Agency .. Timing'. Fuidmg . 1.1.1 Prior to permittingEXz5tltl City: Count t, Ongo.... e al fluadz velCritez}� connection of'p:'?m conn .............:... ?I 3ipbrizu Cbniu175stOnit revte fees roadways from :. adjacent jurisdictions Ta€tic and into the City of Tiansoz#atzn Diamond Bar, ensure trOmmtss�zt that regional benefits reCtttmz►dattotz are not achieved at the, expense of Diamond Bar residents and businesses. 1.1:2 In reviewing :a;:;::;>;::::: tTriffo3Q trieral Fnd eta"•inertfi transportation Co�nmsssct�s auk r�vie�s? improvements, maintain a clear distinction between' . Irac local and regional ransga a# oA objectives. Cornmtsstan xeca;nmulatrorf 1.1.3 Ensure the o PPortunit y E7{aSttrk Eng�nng :...:.::..:. E7riOxn ::.......;...::: ••. eraX#± for public comment. on Prort Sher€r d�e% eni �evte� fees major changes in operational characteristicse??tew boares ::.......... of the circulation system. 1.1.4 Identify -a New tatty Council; Ongosneneraf furii transportation program; upon Planning iievelalsmant corridor through Cotnmtssion "rid review fieeb Tonner Canyon. to Traffic and `ransporfatton :: ether -feats Comrrmissiori within the-E� recommenciWo Diamend Win- The _ environmental impacts of the corridor must be minimized and the corridor must demonstrably benefit the City of Diamond Bar: The City will further require that any proposed transportation facilities be explicitly demonstrated as acceptable to the City. of Diaffi,d Bay 1.1.5 Solicit federal and EXtstit `";Cuut1,;x"`?":8l eifxi state funds to Q`M tiyoioo improve area freeways to eliminate use of local streets as part of the freeway system. Objective 1.2 Balance the need for free trajfi'c flow on City arterials within economic realities, environmental and aesthetic considerations. 1.2.1 programs Prepare for P P EX'i `i zzk ' -.0.9 >: izet eral> f ' traffic control PzOtat'"`3eri1 measures. :..:,. 1.2.2 Maintain flexibility inxustLri Engineesig Qtraeral furtcl, ...: the cross sections and Frocrart Department delprien configuration of rotriew fees streets within topographically rugged or environmentally sensitive areas. Within these areas maintain flexibility in street light requirements. DIAMOND BAR -GENERAL PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM . JUNE 8, 1992 .. MMP -V-2 Objective 1.3 Maintain the integrity of residential neighborhoods. Discourage through traffic. 2.1:1 ' Maximize the availability Existing lt?ouxcef:irtgSer►eial fund 1.3.1 Prevent the creation of x1stIng CtyounC a 44 new roadway connections Pmgranx upon Pianntn fultds, which adversely impact. Commisstotz asr'd aeYelopmztit the character of existing 1 Cv� Traffic and n t zzig evt f`s neighborhoods. Transportattot of establishing a local prutartt , Implement neighborhood reeoinmendatl�tt traffic control programs E6 i' to reduce and divert riitiettt through traffic. transit systems for 1.3.2 Through the roadway Existing City Council; (3ngo7n development system; ensure that new Procram uponPlannin revaetiv>fes development within the Commission and Existing Planii Tres Hermanos Ranch eralirid i'raf%c'.'au property is integrated into Programs► "I`ransportatta.'r d velaPP. the community of{JlnWg.. t 9 develofuerit Diamond Bar. reef;uriis recommendatioxt, efficiency. nevi bodies: Erig�ne�ring DIAMOND BAR GENERAL PLAN IMPLEMENTATION AND'MITIGATION MONITORING PROGRAM JUNE s, 1992 MMP -V-3 }arer�t 1.3.3 Design. new. developments EXisttn City OtlttCtJ3 C}n OM ' ..... ..' :::..:;>::....:.::::. Davey 'ez i p and their access points in ::::: Prtgxacn :..::::..: uptnztrevk ::........... such a way that the C?XillrtzSSt4itd capacity of Iocal I'affiG `fid; residential streets is not i`atfs}?4X#€xtt exceeded. '4 .�p��in8f3� GOAL 2 Provide a Balanced Transportation System for the Safe and Efficient Movement of People, Goods and Services Throughout the City in ,a Manner Which Will ,Protect, Maintain and Improve the Quality of Life Which is Diamond Bar. Objective 2.1 Maximize the use of alternative transportation modes within and through the City, and decrease reliance on single -passenger automobiles. 2.1:1 ' Maximize the availability Existing lt?ouxcef:irtgSer►eial fund and use of. public transit Pzogram service. 2.1.2 Investigate the feasibility 1 Cv� P% tag n t zzig ner l of establishing a local prutartt , IpaeuC transit system. Support privately funded local transit systems for seniors and youths. .3 Su rt mixed-use 2.1 PI?o...... Existing Planii ::,..;Dgzain : eralirid village developments, to Programs► l�part6oii d velaPP. maximize transportation develofuerit reef;uriis efficiency. nevi bodies: DIAMOND BAR GENERAL PLAN IMPLEMENTATION AND'MITIGATION MONITORING PROGRAM JUNE s, 1992 MMP -V-3 2.1.4 Pursue.a cooperative Exist1,n9`: Planning Ongotrig General fund effort with Caltrans and Pmgrani department regional transit providers to develop a major bus transportation facility near or in the City of. Diamond Bar adjacent to the 57 Freeway and _ Grand Avenue. 2.1.5 Encourage participation X, i EIag Manning ::.:.:...;:.:. C)ttgQltt� f final>�tit ci. in carpools.Proi�dni cl�partntC,'ht 2.1.6 Coordinate to the extent 1Yew Planning bngorn general fund possible with neighboring progran3 diartznent cities in the development of a Transportation Demand Management (TDM) plan. 2.1.7 Investigate the potentialiti Plaiuung (iit�z Caera1iixd. of using vacant land as?z0zk pattatf park-and-ride sites. 2.1.8 Seek to expand existin P g istint Pla iG;n' Oris ozri ' , ri rays z a park-and-ride facilities at Fri`crari dear isent the interchange of SR-57 and SR-60. 2.1.9 Expand and maintain theXitiX iCs's+i: iC3:"`izi` ezalu` system of bicycle routes s connecting residential 4?kisrztetr areas to mayor Pn I1Gi4i community attractions. 2.1.10 Pursue a cooperative xYst n it:' .:..zneer far a er ei a r i program to provide Prorarz access for Diamond Bar residents to a regional light rail system. 2.1.11 Pursue a program to EXsEatt ' i` oz improve local freeways to Prom azo; evIapazt nrovide camool lanes. Objective 2.2 Marinuze connection of all areas ivithin the City through the circulation SYstem. 2.2.1 Work to ensure that any.Ex tsttttrograza Plantung ongo�txg Cnetalii'nd new development is 1 Depairt mens, dvslopJxtetit provided with adequate develUpmezit . rev#ew<ees access from within the review l�odie City of Diamond Bar. GOAL 3 Maintain an Adequate Level of Service on Area Roadways. Objective 3.1 Establish d functional classification system for roadways in the City. 3.1.1 Maintain level of service Waisting engineering flnio3ng mineral Fund C or better at arterial Proam 17eliartri mid -block segments (average daily) and D or better during peak hours at signalized intersections to the extent possible. 3.1.2 Improve arterial mid-xtStttt Eng�tiezi Otlgq�ng ilitd block segments to Ograxz Depart�,ent provide average daily service levels of "C" or better to prevent use of local and collector streets as alternate routes in 3.I:3 Improve intersections......� ETN*. Fn t e :" :.;:;:.�::.>::::.::::::::� brr oxr'a .......... : real fund ........... . the. City which currently Prorirar D✓'"'.'""merit provide peak hour traffic service levels worse than "D" where feasible within existing right-of-way and where no significant environmental impact would result. 3. 1.4 Develop a pavementt tEtt tteri'`` t7gxgz'1>zu? management system and cigratx� 13eparf�net maintenance program for all public roadways throughout the City. 3.1.5 Developa program to "`> Exu�ttn� I?1ari�ng Cingt�u i}eral fund, expand and maintain Mot ; Department, N Objective 3.2 Improve the safety and +ttN ct`ency of existing transportation facilities. 3.2.1 Correct identified street. Exzsttng Engitiirig Oigiigiaeral fund , and intersection operating P o 10,I7eparfm t problems in a timely GOAL 4 Provide or Regulate the Provision of the Supply of Parking to Meet the Needs for manner. Both Residents and Commercial Businesses. Objective 4.1 Ensure compliance with the Southern California Air Quality Management District 3.2.2 Improve off-street xisfin l✓ngineertn Un�;o�n :. general fund ...n parking and loading Pro rani _...:..�..,...,, meat Depart.........,. facilities for public Preferential parking for : .... ::.::::::::::;: schools to minimize the c IOptan€ high occupancy vehicles impact on the circulation iMvp�ti6lat erle system. wherever possible. O env boN 3.2.3 Consider the addition of EX1it'" Pl`iiii'<u3.iatx'' .4.1.2 Allow reductions in CeaetaJ<ttd' lanes to existingstreets ;?r.'"ranxi'`ieeri`' affrit€* deveSa` itz`it onlyas a last resort to PT9arik T?earErnitlev1`''riierif l3 correct traffic conditionsevelr tent. veopmc nt or hazards.ev:i`t%ti+[eS i?rievs? fees management programs. 3.2.4 Encourage consolidation Ex strri Viinriri "• .....94)":;::•rXTiIx tJ<`::oi >:: :•> ;;;.... eat ral >fi nd of commercial drive t'rograri Department approaches and prohibition of turning movements where warranted. Objective 3.3 Explore all available opportunities and mechanisms for funding transportation improvements. 3.3.1 All new development E s"It., :-,Mq Qo n'`' �e >"'tt erifi shall be required to provide reasonable eeoet mitigation measures orrevevTi�octs pay traffic impact fees. GOAL 4 Provide or Regulate the Provision of the Supply of Parking to Meet the Needs for Both Residents and Commercial Businesses. Objective 4.1 Ensure compliance with the Southern California Air Quality Management District Regulation 15 trip reduction requirements. 4.1.1 Regulate the provision of Esti Plulz:: 4 41z#extrl'itY Preferential parking for : .... ::.::::::::::;: c IOptan€ high occupancy vehicles iMvp�ti6lat erle wherever possible. O env boN .4.1.2 Allow reductions in Fist`•; Iaiut3:`'`tui-66 affrit€* parking in exchange for PT9arik T?earErnitlev1`''riierif l3 transportation demand veopmc nt i?rievs? fees management programs. revzew laodes DIAMOND BAR GENERAL PLAN IMPLEMENTATION AND MITIGATION MONITORING PROGRAM JUNE 8, 1992 MMP -V-6 Objective 4.2 Provide adequate harking for all types of land use within the City of Diamond Bar. 4.2.1 Use existing parking EXiStlrl Engzneersng Dt7oixg Geiral fugd demand data sources to Pxo razz I?zpaitm�uf update City Code requirements pertaining to parking, particularly the provision of sufficient parking for land uses generating a high demand for parking.