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HomeMy WebLinkAbout07/14/2011 AGENDA Regular MeetingTRAFFIC & TRANSPORTATION COMMISSION AGENDA July 14, 2011 7:00 P.M., Regular Meeting South Coast Air Quality Management District Hearing Board Room 21865 Copley Drive Diamond Bar, California Chair Vice -Chair Commissioner Commissioner Commissioner Liana Pincher Ted Carrera Devin House Jen "Fred" Mahlke Kenneth Mok Written materials dish•fbutedto the Traff e and Transportation Commission within 72 hours ofthe Traffic and Transportation Commission meeting are available forpublic inspection immediately upon distribution in the City Clerk's office at 21825 Copley Drive, Diamond Bar, California, during normal business hours. Copies o/stcffreports or other written doaunentation relating to agenda items are on file in the Public Works Department located at 21825 Copley Drive, and are available for public inspection. Ifyou have questions regarding an agenda items, please call (909) 839- 7040 during regular business hours. In an effort to comply with the requirements• of Title 11 of the Americans with Disabilities Act of 1990, the City of Diamond Ba• requires that any person in need of any type ofspecial equipment, assistance, or accommodations) in order to communicate at a City public• meeting must inform the Public Warks Department at (909) 839-7040 a minimn n of 72 homy prior to the scheduled meeting. Please refrain fi•oni smoking, eating or drinking The City ofDianond Bar uses recycled paper in the Auditorium and encourages you to do the sane CITY OF DIAMOND BAR TRAFFIC AND TRANSPORTATION COMMISSION AGENDA JULY 14, 2011 SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT HEARING BOARD ROOM 21865 COPLEY DRIVE, DIAMOND BAR CALL TO ORDER: 7:00 p.m. PLEDGE OF ALLEGIANCE: Commissioner Mok ROLL CALL: Commissioner House, Mahlke, Mok, Vice -Chair Carrera, Chair Pincher I. APPROVAL OF MINUTES A. Minutes of May 12, 2011 II. PUBLIC COMMENTS This is the time and place for the general public to address the Commission. Items to be discussed here are those which do not already appear on this agenda. III. ITEMS FROM STAFF A. Traffic Enforcement Update * 1. Citations: April, May and June 2011 2. Collisions: April, May and June 2011 3. Street Sweeping: April, May and June 2011 IV. OLD BUSINESS — A. NTMP — Decorah Road. Briar Creek Road And Willow Creek Road 1. Recommendation: It is recommended that the Traffic and Transportation Commission receive a staff presentation and concur with staff to approve the proposed traffic calming improvements. V. NEW BUSINESS — A. Golden Springs Elementary School Parking Lot Improvements and Circulation 1. Recommendation: It is recommended that the Traffic and Transportation Commission concurwith staff to approve the proposed parking and circulation improvements. B. Traffic Concerns on Navajo Springs 1. Recommendation: It is recommended that the Traffic and Transportation Commission receive public comments and concurwith staff to install approximately 550' of double yellow centerline striping. VI. STATUS OF PREVIOUS ACTION ITEMS VII. ITEMS FROM COMMISSIONERS VIII. INFORMATIONAL ITEMS A. Traffic Signal Battery Back -Up System Project B. Brea Canyon Cut -Off @ SB SR -57 Off Ramp Traffic Signal Project C. Multi -Year CIP — Comprehensive Infrastructure Management Plan D. Industry's Grand Avenue Bridge Widening/Interchange Project E. SR -57/60 Interchange "Big Fix" F. Lemon Avenue On/Off-Ramps Project G. Residential — Area 7/Zone 5 Road Maintenance Project IX. SCHEDULE OF FUTURE CITY EVENTS A. CITY COUNCIL MEETING — Tuesday, July 19, 2011 — 6:30 p.m., AQMD/Government Center, Main Auditorium, 21865 Copley Drive B. CONCERTS IN THE PARK—Wednesday, July 20, 2011 —6:30 p.m. — 8:00 p.m., Sycamore Canyon Park, 22930 Golden Springs Drive C. MOVIES UNDER THE STARS — Wednesday, July 20, 2011 — 8:30 p.m., Sycamore Canyon Park, 22930 Golden Springs Drive D. PLANNING COMMISSION MEETING—Tuesday, July 26, 2011 —7:00 p.m., AQMD/Government Center, Main Auditorium, 21865 Copley Drive. E. CONCERTS IN THE PARK—Wednesday, July 27, 2011 —6:30 p.m. - 8:00 p.m., Sycamore Canyon Park, 22930 Golden Springs Drive F. MOVIES UNDER THE STARS — Wednesday, July 27, 2011 — 8:30 p.m., Sycamore Canyon Park, 22930 Golden Springs Drive G. PARKS & RECREATION COMMISSION MEETING—Thursday, July 28, 2011 — 7:00 p.m., AQMD/Government Center, Hearing Board Room, 21865 Copley Drive X. ADJOURNMENT * THIS INFORMATION WILL BE PROVIDED AT THE JULY 14, 2011 MEETING CITY OF DIAMOND BAR MINUTES OF THE TRAFFIC AND TRANSPORTATION COMMISSION MEETING MAY 12, 2011 CALL TO ORDER: Chair Pincher called the meeting to order at 7:00 p.m. in the South Coast Air Quality Management/Government Center Hearing Board Room, 21865 Copley Drive, Diamond Bar, California 91765. PLEDGE OF ALLEGIANCE: ROLL CALL: Absent: Also Present: APPROVAL OF MINUTES: Commissioner Mahlke led the Pledge of Allegiance. Commissioners Jen "Fred" Mahlke, Kenneth Mok, Vice -Chair Ted Carrera, Chair Liana Pincher Commissioner House was excused. David Liu, Public Works Director; Rick Yee, Senior Civil Engineer; Kimberly Molina Young, Associate Engineer, and Marcy Hilario, Senior Administrative Assistant. A. Minutes of the April 14, 2011 regular meeting. C/Mahlke moved, VC/Carrera seconded, to approve the April 14, 2011 minutes as presented. Motion carried by the following Roll Call vote: AYES: COMMISSIONERS: Mahlke, Mok, VC/Carrera, Chair/Pincher NOES: COMMISSIONERS: None ABSENT: COMMISSIONERS: House II. PUBLIC COMMENTS: None Offered III. ITEMS FROM STAFF: A. Received and Filed Traffic Enforcement Updates for: 1. Citations: February, March, April 2011 2. Collisions: February, March, April 2011 3. Street Sweeping: February, March, April 2011 MAY 12, 2011 PAGE 2 T&T COMMISSION VC/Carrera asked if the DUI's, collisions and arrests were related and PWD/Liu responded they were not necessarily related. IV. OLD BUSINESS: None V. NEW BUSINESS: None VI. STATUS OF PREVIOUS ACTION ITEMS: None VII. ITEMS FROM COMMISSIONERS: VC/Carrera asked if staff was aware of the additional cut -through traffic on Golden Springs through the Diamond Bar Golf Course to get onto Grand Avenue. PWD/Liu said staff was not aware that this was taking place. He asked what time of day VC/Carrera observed this phenomenon. VC/Carrera said he observed this taking place many times during his commute (morning and evening). VIII. INFORMATIONAL ITEMS: A. Traffic Signal Battery Backup System Project — SE/Yee stated that the plans and specs are now complete and staff expects to begin advertising for the project on Tuesday, May 17. B. Brea Canyon Cut -Off @ SB SR57 Off Ramp — Traffic Signal Project — SE/Yee reported that last month staff received an encroachment permit from Caltrans. This month staff has been working with Edison to install the electrical service to power the signal. Edison has completed the design for the new service pedestal and construction will commence shortly. C. Street Sweeping Services — SE/Yee explained that the City Council awarded the Street Sweeping Services contract to R.F. Dickson, the current provider of the City's service. Dickson proposed to maintain the current level and quality of service at a significant savings to the City. D. Multi -Year CIP — Comprehensive Infrastructure Management Plan — SE/Yee reported that staff has been working with the consultant to prepare a management plan for the City's sewer and storm drain infrastructure. The ultimate goal is to provide an inventory and condition assessment of the facilities and the outcome of the project will result in a document that will provide a planning tool for future maintenance. Staff expects to receive a report of the findings by early July. MAY 12, 2011 PAGE 3 T&T COMMISSION E. Proposed 2011-12 CIP — PWD/Liu stated that this program represents the City's efforts to make certain the infrastructure and facilities continue to remain in good condition. Due to the current state of the economy, creating and preparing this CIP continues to be a challenge. However, staff is still able to prepare the CIP for the upcoming year with a number of projects —four street improvement project, three traffic management and safety projects, five miscellaneous improvement projects and seven parks and recreation improvement projects. The total resources required for these projects is slightly over $4.25 million, using only special fund sources. No general funds are being used for these projects. F. Industry's Grand Avenue Bridge Widening/Interchange Project—SE/Yee stated that during the past month, there were a couple of meetings with Caltrans, City of Industry and D.B. to discuss some of the potential proposed changes to the project scope. One proposed change is the addition of another mainline travel lane on the portion where the SR57/60 lanes merge. The concept looks very positive; however, there is further analysis and modeling that will need to take place before that is able to proceed. G. SR57/60 Interchange "Big Fix" — SE Yee shared that there have not been any major developments with this project since the last meeting. H. NTMP — Briar Creek Road/Decorah Road Neighborhood/Willow Creek Neighborhood — SE/Yee reported that consensus has been obtained to move forward with the project with the exception of the Willow Creek Neighborhood. Lemon Avenue On/Off-Ramp Project — AE/Molina reported that unfortunately, since the last Commission meeting, the cooperative agreement to begin the acquisitions of right-of-way is still with Caltrans. Some of the language has been changed and the legal department at Caltrans headquarters must approve the change prior to sending the agreement to the City for review. Another critical issue is the use of federal funds. This project is being funded largely through the use of federal monies granted to the City in 2005. D.B. had originally anticipated using some of the federal funds in the right-of-way phase; however, the state has a requirement that the capital right- of-way costs (costs to acquire the land) needs to be at least $1 million. The capital cost estimate is just under $900,000. Therefore, since the project did not meet that threshold, the City will not be able to use the federal funding on the right-of-way phase of the project. In an effort to circumvent that requirement, the City of Industry and the City of D.B. are working cooperatively with Caltrans to determine whether that requirement can be waived for the City so that the funds can be expended sooner rather than later. If the waiver is not received, it will be another two years before any federal dollars can be used for this project. A request was submitted to the district's local office and staff is waiting to see if the waiver will be granted. MAY 12, 2011 PAGE 4 T&T COMMISSION J. Residential Area -7/Zone 5 Road Maintenance Project—AE/Molina stated that bids were open on May 9th. Six bids were received. The apparent low - bidder was Sully -Miller with a bid of $1,819,990. The engineer's estimate was $1,699,000 and the highest bid was just over $2 million. Staff anticipates taking a contract to the City Council on Tuesday for approval with construction to begin the week of June 13th. Completion is slated for mid-September. K. Valley Vista Drive/Bridge Gate Drive — Street Parking Request — SE/Yee stated that one of the tenants in this corporate center, QTC, is a provider of occupational health and disability exam services. They occupy three buildings in the loop and have approached staff with a request for the City to allow street parking along Valley Vista Drive and Bridge Gate Drive. The reason the tenant is making this request is because they anticipate significant growth (an additional 250 employees) and a significant need for parking. Staff began looking at the feasibility of making this happen and there are a number of issues that have to be evaluated. One issue is that there is no sidewalk on that side of the street which would present a hazard for foot traffic. The other issue is line -of -sight that would potentially be blocked by vehicles parking adjacent to existing driveways. If staff determines that a certain number of spaces are feasible, this matter will go to the City Council for request of a formal approval allowing street parking on Valley Vista Drive and Bridge Gate Drive. PWD/Liu said that staff is concerned that if street parking is allowed, it will set a precedence and could result in a chain reaction of requests for street parking in front of businesses. The City wants to remain business -friendly while meeting its current standards. VC/Carrera asked if the parking was being requested for additional employees only with visitors using the current parking spaces. PWD/Liu replied that he did not know; however, he believed the extra parking would be for staff since the business did not contemplate many visitors. VC/Carrera said he believed there were no crosswalks as well, which would present a safety issue during peak hours. C/Mahlke said she believed that the business may currently occupy most of the spaces available. PWD/Liu said that employees work in shifts so there are not likely to be 450 or 700 employees at one time. C/Mahlke asked for more information regarding QTC's plans for expansion. PWD/Liu said his understanding about the expansion is that the business is looking at additional space at the Gateway Corporate Center as well as an additional office space in Ontario. IX. SCHEDULE OF FUTURE CITY EVENTS: As stated in the agenda. MAY 12, 2011 PAGE 5 T&T COMMISSION ADJOURNMENT: There being no further business to come before the Traffic and Transportation Commission, Chair/Pincher adjourned the meeting at 7:44 p.m. The foregoing minutes are hereby approved this day of 2011. Respectfully, David G. Liu, Secretary Attest: Chairman Liana Pincher CITY OF DIAMOND BAR TRAFFIC AND TRANSPORTATION COMMISSION MEMORANDUM DATE: July 7, 2011 MEETING DATE: July 14, 2011 TO: Chair and Members of the Traffic and Transportation Co mission VIA: David G. Liu, Director of Public Works/City Engineer FROM: Rick Yee, Senior Civil Enginee(k\ SUBJECT: DECORAH ROAD, BRIAR CREEK ROAD, AND WILLOW CREEK ROAD NTMP Background/Discussion: In April 2010, City staff was notified of traffic concerns along Decorah Road and Briar Creek Road. After collecting traffic data and sufficient neighborhood support, it was determined that these roadways were candidates for traffic calming under the Neighborhood Traffic Management Program (NTMP). City staff engaged the neighborhood through a series of public meetings and was able to develop a solution that involves speed cushions, centerline striping, and signage to achieve traffic calming. In the Fall of 2010, the residents along Decorah Road and Briar Creek Road were able to obtain consensus from 2/3 of the neighborhood to move forward with implementation of the project. However, during this time, staff was advised of additional traffic concerns on Willow Creek Road, a roadway adjacent to the Decorah and Briar Creek neighborhoods. In order to comprehensively address the traffic concerns in the affected neighborhoods, it was determined that Willow Creek Road should be included in the overall improvement plans. Consolidating the projects would allow for greater cost savings and minimize the construction impacts to the neighborhood. Thus, the traffic calming project for Willow Creek was initiated by staff in December 2010. A series of neighborhood meetings followed and a similar solution involving speed cushions, centerline striping, and signage was developed. In the Spring of 2011, the residents along Willow Creek Road obtained consensus from 2/3 of the neighborhood to move forward with the project. Since consensus has been reached for all the neighborhoods, the project has been consolidated and the plans and specifications are currently being advertised for bids. The engineer's estimate for the proposed improvements is $38,300. The bids are scheduled to be opened at the end of July and the estimated construction period is 30 calendar days. Six months following completion of the improvements, staff will collect new speed and volume data and compare with the baseline data to determine the effectiveness of the traffic calming devices. Recommendation: It is recommended that the Traffic and Transportation Commission receive a staff presentation and concur with staff to approve the proposed traffic calming improvements. 2 CITY OF DIAMOND BAR TRAFFIC AND TRANSPORTATION COMMISSION MEMORANDUM DATE: July 6, 2011 MEETING DATE: July 14, 2011 TO: Chair and Members of the Traffic and Transportation Commission VIA: David G. Liu, Director of Public Works/City Engineer FROM: Rick Yee, Senior Civil Engineer SUBJECT: GOLDEN SPRINGS ELEMENTARY SCHOOL PARKING AND CIRCULATION IMPROVEMENTS Background/Discussion: The Pomona Unified School District is proposing to add additional on-site parking and to modify the circulation plan for student drop off at Golden Springs Elementary School. Pomona Unified has expanded Golden Springs Elementary School to a full Kindergarten through Eighth Grade Elementary School. In order to address the increased enrollment, the District intends to improve the on-site parking and circulation at the school. The proposed project will relocate the main parking lot and drop off area to the north end of the campus. The new parking lot would allow for 57 additional parking spaces (55 general and 2 accessible) and an additional access point from EI Encino Drive. Currently, the primary student drop off location is along Ballena Drive which results in vehicles queuing back towards the intersection of Golden Springs Drive and Ballena Drive. The traffic impacts to this intersection and to the adjacent streets will be reduced since the drop off zone would be relocated further away from the intersection of Golden Springs Drive and Ballena Drive. The existing faculty parking lot near Golden Springs Drive and Ballena Drive will remain but will not be used as a drop off location. Staff has received and reviewed a circulation study for the project. Based on the report, there are no significant impacts anticipated at the surrounding signalized intersections. Additionally, the relocation of the parking lot and student drop off zone further away from Golden Springs Drive will result in reduced congestion at the intersection of Ballena Drive and Golden Springs Drive. The District and its architect will be attending the July 14, 2011, Traffic and Transportation Commission Meeting to provide a brief presentation regarding the proposed improvements. Residents within a 500 foot radius of the school have been invited to attend the meeting as well. The District will be submitting this proposal to the Division of the State Architect in September 2011 and if approved, it is anticipated that this work will begin in the Summer of 2012. Recommendation: It is recommended that the Traffic and Transportation Commission concur with staff to approve the proposed parking and circulation improvements. Attachments: Golden Springs K-8 School Proposed Site Plan O O t U L% 1 00 Y CITY OF DIAMOND BAR TRAFFIC AND TRANSPORTATION COMMISSION MEMORANDUM DATE: June 27, 2011 MEETING DATE: July 14, 2011 TO: Chair and Members of the Traffic and Transportation Commission FROM: Kimberly Young, Associate Engineer VIA: David G. Liu, Director of Public Works SUBJECT: Traffic Concerns on Navajo Springs Road BACKGROUND/DISCUSSION: Staff is in receipt of a request to extend the centerline striping on Navajo Springs Road due to the resident's concern with vehicles driving down the center of the roadway. Pursuant to the City's Centerline Striping Policy, staff investigated the area of concern, and the following is the research findings conducted by staff. Road Characteristics Navajo Springs Road is a residential street that is approximately 1,554 linear feet from Sunset Crossing Road to Decorah Road. The street width is 36 feet curb to curb. The existing speed zone is 25 mph however an advisory speed of 15mph is posted for the speed humps. Lane configuration consists of two (2) lanes with solid yellow centerline striping at the stop sign at Sunset Crossing Road and around the curve where Navajo Springs Road turns in to Decorah Road (refers to Exhibit A). From Sunset Crossing Road, the ascending grade of Navajo Springs Road is less than 2% up to the first speed hump located at 421 Navajo Springs Road. Between the speed hump located at 421 Navajo Springs Road and the next speed hump located at 311 Navajo Springs Road the grade increases up to 9.8%. Beyond the speed hump at 311 Navajo Springs the grade is 5% and eventually flattens out to approximately 2% around the bend. Volume and Speed Speed and Volume calculations were taken at two (2) locations, 311 Navajo Springs Road and 441 Navajo Springs Road. Results of the speed data is shown on Exhibit B. An overall 85th percentile speed of 34mph was observed at 441 Navajo Springs in the eastbound direction while all other overall 85th percentile speeds were within the acceptable speed limit range. Visibility Sight distance was reviewed along Navajo Springs Road. For motorists traveling to or from Sunset Crossing, the horizontal curvature of the roadway may make it difficult for motorists to see oncoming vehicles due to parked cars. Additionally, due to the narrowness of the roadway, when vehicles are parked on both sides of the roadway, motorists tend to drive down the center of the road. Continuing west towards Decorah Road and the existing double yellow centerline around the bend on Navajo Springs Drive/Decorah Road, while vertical curvature up to 9.8% was observed, the roadway is fairly straight allowing for more than adequate sight distance. Accidents Within the previous 24 -month period, there have been no (0) reported collisions along Navajo Springs Road. Conclusion Speeds were in excess of acceptable limits for traffic headed in the eastbound direction in the vicinity of 441 Navajo Springs Road which is within the horizontal curvature area of the roadway. Based on the criteria identified in the Centerline Striping Policy, the sight concern, observed speeds in excess of 30mph, and width of the roadway all warrant the installation of double yellow centerline striping. Staff is recommending the installation of approximately 550 lineal feet of double yellow centerline striping as shown in Exhibit C. All residents along Navajo Springs Drive have been informed of the Commissions consideration of this item and were invited to provide their own input on the matter. RECOMMENDATION: It is recommended that the Traffic and Transportation Commission receive public comments and concur with staff to install approximately 550' of double yellow centerline striping. Attachments: • Exhibit A -Existing Road Characteristics and Locations of Speed and Volume Counts • Exhibit 13 -Existing Road Characteristics and Speed and Volume Data • Exhibit C -Proposed Centerline Striping Extension • Centerline Striping Policy Mm l op liA AI -oaf 05 ,4t ; FM17 or CITY OF DIAMOND BAR RESIDENTIAL STREET CENTERLINE STRIPING DETERMINATION POLICY (Adopted by City Council on October 2, 2001) This policy governs centerline striping on local residential streets, as those streets are defined by California Vehicle Code ("CVC') Section 40802(b). General Policy Centerlines are ordinarily not needed on residential streets. Nonetheless, centerline striping on local residential streets may be approved when determined to address unusual vehicular traffic concerns according to the criteria set forth in this policy. Centerlines A yellow centerline separates traffic traveling in opposite directions. Centerlines assist motorists to remain on the correct side of the street. Centerlines may be continuous along a road or alternatively may be used intermittently to control the position of traffic at specific locations, such as around curves, over hills, and on approaches to intersections, railroad crossings, and bridges. Centerline striping may be used to address various types of traffic safety issues including but not limited to the following: 1. Excessive speeding - centerlines contribute to the illusion of street narrowing, which causes drivers to be less inclined to speed. 2. Head-on conflicts between vehicles on hilly streets — centerlines encourage drivers to "keep right' as they traverse the crest of hills. 3. Head-on conflicts between vehicles on curvilinear streets — centerlines encourage drivers to "keep right' as they traverse curves. Also, centerlines contribute to lower speeds, as they discourage drivers from 'butting the corner." 4. Delineation at stop sign controlled intersections — Short sections of centerlines on approaches to stop signs provide drivers with supplemental warning of the intersection control. 5. Channelization at intersections — centerlines are required at locations where more than two lanes are striped. This typically occurs where lanes are designated for left or right turns. 6. Other locations where an engineering study indicates a need for them. Types of Center Longitudinal Line Application 1. Single broken yellow line: two-lane, two-way roadway where overtaking and passing is permitted. Delineates left edge of traffic lane where travel on the other side of the line is in the opposite direction. 2. Double line (single broken yellow line and single yellow line): two-way roadways to regulate passing in one direction. Delineates a separation between traffic lanes in opposite directions where overtaking and passing is permitted with care for traffic adjacent to the broken line and is prohibited for traffic adjacent to the solid line. 3. Double line (two solid yellow lines): two -direction no -passing marking for two-lane streets. Delineates the separation between traffic lanes in opposite direction where overtaking and passing is prohibited in both directions. Crossing this marking with care is permitted only as part of a left -turn maneuver. Procedure for Approving Centerlines on Local Residential Streets 1. Any resident may submit a request for centerline striping on a local residential street; in addition, the City Council and the Traffic and Transportation Commission may initiate such a request. 2. In response to a request for centerline striping, the Public Works Division will conduct a field investigation, evaluate the appropriateness of a centerline at the requested location against the criteria set forth and make a recommendation on the request to the Traffic and Transportation Commission. 3. The Traffic and Transportation Commission will consider the recommendation as an agenda item at a regular meeting; residents on the affected street will be given mailed notice of the agenda item at least ten (10) days prior to the Commission meeting. 4. The Traffic and Transportation Commission is authorized to approve centerline striping on local residential streets that meet the criteria. Notice of centerline installation will be mailed to affected residents at least fourteen (14) days prior to installation. 5. Any decision of the Traffic and Transportation Commission may be appealed, by any affected resident, to the City Council. 1. Prior to the final approval of the design plans for local residential street reconstruction, overlay, or slurry seal, the City will notify the residents on the affected street of the intent to reinstall or modify the existing centerline striping on 2 that street. The residents will have fourteen (14) days to comment on the proposed project. 2. If the City receives requests to replace or remove existing centerlines, it will be put on the Traffic and Transportation Commission agenda for consideration. Residents on the affected street will be given mailed notice of the agenda item at least ten (10) days prior to the Commission meeting. 3. The Traffic and Transportation Commission is authorized to approve the replacement or removal of centerline striping on local residential streets. Notice of any centerline modification or removal will be mailed to affected residents at least fourteen (14) days prior to the modification or removal. 4. Any decision of the Traffic and Transportation Commission may be appealed, by any affected resident, to the City Council. Criteria for Consideration/Approval of Centerlines on Local Residential Streets Centerlines may be approved on local residential streets if they meet the following criteria: CRITERIA * The 85"' Percentile of observed speeds exceeds 30 M.P.H. 91 SINGLE BROKEN DOUBLE (SINGLE DOUBLE (TWO YELLOW BROKEN SOLID YELLOW) YELLOW/SINGLE SOLID YELLOW Imminent Sight Concern — Horizontal Curves X X Imminent Sight Concern — Vertical Curves X X *Observed Speeds: X X X 2 -Lane /2 -way Street Width = 36' Minimum X X X Three Reported Accidents (recent 24 month period) X X X Unusual/Unique Traffic Condition Unknown to X X X Motorists * The 85"' Percentile of observed speeds exceeds 30 M.P.H. 91 WALNUT/DIAMOND BAR STATION TRAFFIC STATISTICS APRIL, MAY, AND JUNE 2011 Report Completed: JULY 2011 CITATIONS Fa Apr -11 May -11 Jun -11 ❑ Non-Haz © Hazard E Parker ■ Total *May & June totals reflect vacation and training time. Apr-10 May -10 Jun -10 ❑Non-Haz ■Hazard ©Parker ■Total Fmm cMm ®® M Apr-10 May -10 Jun -10 ❑Non-Haz ■Hazard ©Parker ■Total COLLISIONS May -11 Jun -11 ❑ INJURY O NON INJ ■TOTAL APRIL 2011 D.U.I ARREST= 3 D.U.I. COLLISIONS= 2 MAY 2011 D.U.I ARREST= 2 D.U.I. COLLISIONS= 0 JUNE 2011 D.U.I ARREST= 2 D.U.I. COLLISIONS= 2 <2 iB 15 A, < Apr -10 May -10 Jun -10 ■INJURY ONON INJ ■TOTAL APRIL 2010 D.U.I ARREST= 4 D.U.I. COLLISIONS= 2 MAY 2010 D.U.I ARREST= 0 D.U.I. COLLISIONS= 0 JUNE 2010 D.U.I ARREST= 0 D.U.I. COLLISIONS= 1 Apr -11 May -11 Jun -11 *May & June totals reflect vacation and training time. Apr -10 May -10 219 Jun -10