HomeMy WebLinkAbout9/12/19941
7:00 P.M.
South Coast Air Quality Management District
Auditorium
21865 East Copley Drive
Diamond Bar; California
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Copies of staff reports or other. written documentation relating to agenda items are on file in the Community
Development Office, located at 21660 F— Copley Drive, Suite 190, and are available for public inspection.
If you have questions regarding an agenda item, please call (909) 396-5676 during regular business hours.
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accomodation(s) in order to communicate at a City public meeting must inform the Community
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'he City of Diamond Bar uses rccydtd paper
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CITY OF DIAMOND BAR
PLANNING COMMISSION AGENDA
Monday September 12, 1994
CALL TO ORDER: 7:00 p.m.
PLEDGE OF ALLEGIANCE
Next Resolution No. 94-20
ROLL CALL: COMMISSIONERS: Chairman David Meyer, Vice Chairwoman
Lydia Plunk, Bruce Flamenbaum, Don Schad and Franklin Fong
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 Sneaker's Card for the
recording Secre (CM21etion of this form is voluntary) There is a five minute maximum time.
,limit when addressing the Planning Commission
OLD BUSINESS: - None
NEW BUSINESS: None
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 July 16 and July 18, 1994
CONTINUED PUBLIC HEARINGS:
2. Adoption of the 1994 General Plan. The General Plan is a statement
of goals, objectives and strategies to guide the long-range physical
development of the City. The Plan is required by State law and
determines the size, form and character of the City over the next 20
years. It is the most significant tool utilized by the community to
ensure a balanced, comfortable environment in which to live and
work. It represents the community's view of its future and serves as
the "blueprint" to define the long term character of the City. In
1
January the City Council appointed a General Plan Advisory
Committee to develop the Draft General Plan. Fifteen public
meetings have been conducted to identify key planning issues and
define General Plan policy. The results have been forwarded to the
Planning Commission for consideration.
The purpose of the September 12, 1994 public- hearing is -to continue
the Planning Commission's review of the Draft 1994 General Plan
from August 30, 1994, commencing with the Land Use Element and
concluding by revisiting outstanding issues from previous elements.
Recommended Action: It is recommended that the Planning
Commission open the public hearing, receive a presentation from
staff; receive public testimony, forward comments to City staff and
continue the public hearing.
PLANNING COMMISSION i'I'EMS:
INFORMATIONAL ITEMS: -
ADJOURNMENT:
E
MINUTES OF THE CITY OF DIAMOND BAR
REGULAR MEETING OF THE PLANNING COMMISSION
JULY 16, 1994
CALL TO ORDER
Chairman Meyer called the meeting to order at 10:05 a.m. at the
Heritage Park Community Center, 2900 Brea Canyon Road, Diamond Bar,
California.
PLEDGE OF ALLEGIANCE
The audience was led in the Pledge of Allegiance by Chairman Meyer.
ROLL CALL
Present: Chairman Meyer; Vice Chairwoman Plunk;
Commissioners: Schad and Fong
Also Present: Community Development Director James
DeStefano; Associate Planner Rob Searcy;
Assistant z'Planner Ann Lungu; * Interim City
'Attorney Michael, Montgomery; Engineer -
Consultant Mike Myers; and Administrative
Secretary Marilyn Ortiz
Absent: None
Commissioner Flamenbaum arrived at 10:15 a.m.
MATTERS FROM -TRA AUDIENCE/PUBLIC.COMMENTS None
CONTINUED PUBLIC HEARING:
1. ADOPTION-OFTHE GENERAL PLAN
Chair/ Meyer thanked staff for their commitment to the project
and announced that the order for the public hearing will be by
element as follows:
Introduction
Resource Management Element
Public Services and Facilities Element
Public Health and Safety Element
Housing Element
Circulation Element
Land Use Element
Chair/ Meyer declared the public hearing open for one-half hour
and invited those wishing to speak to come forward.
July 16, 1994 Page a Planning Commission
Chair/Meyer announced City Council wants to put the General
Plan on the ballot for public review and comment, and to do
this they have time constraints.
Chair/Meyer stated that the Planning Commission will use the
basic document, 1993 General Plan, and recommendations made by
GPAC, in their deliberations.
CDD/DeStefano stated, -based upon the Planning Commission's
decision of Monday night, July 11, 1994 the discussion and
review will start with the. Introduction and then, go to the
Resource Management Element. He recommended that the
Planning Commission continue with the schedule as outlined by
Chair/Meyer.
CDD/DeStefano stated Staff has provided the •Planning
Commission, as well as all members of GPAC and other
interested parties, all of the. errata as outlined at the
Monday night, Julyli, 1994 Planning Commission meeting. That
errata was completed in an attempt to insure that all of the
decisions of GPAC are accurately reflected within the document
before the Planning Commission. All of the minutes. have been
reviewed. Staff compared, contrasted, and resolved all of the
various issues and insured that all of those were incorporated
within the document. Staff also went back to Cotton/Beland
and asked for clarification on some items that -were added by
the Consultant firm. These clarifications specifically dealt
with the Land Use Element, and the table at. the. end of the
Land Use Element. The errata sh@ets clarified the GPAC
additions, which were' in red line, and .the GPAC deletions,
which were in strike -out. The errata sheets also contain
staff or consultant changes which are in an underline format.
Several of the staff and consultant changes were as a result
of GPAC's direction, most predominately in the Housing
Element. GPAC directed the staff and consultants to create
more of a "constraint's -oriented" Housing Element.
Staff has also provided the Planning Commission,.as well as
GPAC members, copies of, correspondence received following the
July ll.Planning Commission meeting. One correspondence is
from Mr. Callard requesting that Objective 1.7 or 1.6 in.the
Land Use Element be reinstated. The second letter is from Mr.
Robert Huff, responding to a comment at Monday night's July
11, 1994 Planning Commission meeting by suggesting some
language modifications to the Introduction section dealing
with the "Vision Statement". Additional correspondence was
received and distributed from Martha Bruske.
July 160 1994 Page 3 Planning Commission
CDD/DeStefano further stated there is a letter from Dan
Wildish for purposes of review,'and invited Mr. Wildish'to
elaborate on that for the commission's benefit.
CDD/DeStefano emphasized the City Council's concern regarding
the schedule for completion of the General Plan. The City,
Council has indicated its desire to deliberate and place the
General Plan on the November, 1994,'ballot. In order to meet
this deadline, the City Council must come to a conclusion on
ballot language and *ballot issues prior to about August 8,
1994. The City ,Council has a public hearing scheduled for
Tuesday, July 26, 1994. Staff recommends this public hearing
be postponed to the following week in anticipation of the
Planning Commission reaching a conclusion on Monday, July 25,
1994. City Council will be establishing a schedule of
meetings based upon staff's recommendation.
CDD/DeStefano announced with. respect to the Introduction, the
most significant change GPAC has made is the opening phrase
within the introduction. The recommendation is for a separate
paragraph to be inserted which states, "It is the primary goal
of the City of Diamond Bar to maintain'a rural and country
living environment".
Chair/Meyer declared the public hearing open -and invited those
-.wishing to speak to come forward. Chair/Meyer stated he has
requests from three individuals to speak and. asked them to
limit their discuss;ion.to the Introduction portion.
Martha Bruske, a Diamond Bar resident; stated she has
submitted her comments on the Introduction and Land Use
Element -to the Planning Commission. She stated she agrees
with the recommended order of the Elements and recommends
adoption of the,Introduction statement..
Barbara Beach-Courchesne., a Diamond Bar resident and GPAC
member stated she is in support of the Introduction.
Wilbur Smith, a Diamond Bar resident and GPAC member, stated
his concerns about the responsibility to the gated Community
known as The Country and The Country's responsibility to
Diamond Bar.
Gary Neely, a Diamond Bar resident, recommended dropping the
first sentence since the Introduction has a statement that
deals with this idea.
July 16® 1994 Page 4 Planning Commission
Max Maxwell, a resident of Diamond Bar, -agreeing-with the
Introduction, expressed his desire to get the General Plan on
the ballot.
In response to Mr. Maxwell's comment regarding the minutes,
CDD/DeStefano reiterated that all of the Planning Commission
members, and GPAC members have been provided with the minutes
of the GPAC meetings. The last packet of'information .which
went out on Thursday,. July 15, 1994 incorporated the final two
GPAC Draft meeting minutes, which are June 28, 1994 and June
30, 1994. GPAC has approved their minutes up to June 9, 1994.
Richard Callard, a Diamond Bar resident, asked that the
negative prefix "waste" be deleted wherever.the term "waste
water" appears.
Chair/Meyer announced .that the Introduction portion of the
Public Hearing is closed.
RECESS: Chair/Meyer recessed the meeting at 10-:58 a.m.
RECONVERTED: Chair/Meyer reconvened the meeting at 11:07 a.m.
Attorney/Montgomery, responding to VC/Plunk, indicated that
two General Plans which were' previously adopted were
successfully, subjected. to the referendum process. In both
cases, the City Council, rather• than put the matter on the
ballot, exercised the alternative in,the code section, which
.is to repeal the enactment' of the `General Plan, and begin
again. The code section provides that tiie City Council may
not submit a same or similar General,Plan within one year of
the repeal, and that is difficult to define. Each case stands
on its own merits and is subject to subjective decision. The
Planning Commission could find that this is a significantly
new General Plan. That decision would still be subject to a
challenge of bad faith or abuse of discretion by anyone who
might disagree. However, the fact that the Planning
Commission or Council cannot submit the same General Plan
within a year does riot bar the citizenry from introducing a
General Plan that may be same or similar within the year. If
the Council follows through and puts the matter on the ballot,
the people may, by ballot, wave the one year requirement and
adopt the General Plan.
Attorney/Montgomery indicated this is a completely new General
Plan. The other two General Plans do not exist, as a matter
of law. They may be used as a source material,• but the two
July 16, 1994 Page 5 Planning Commission
General Plans that were repealed by the City Council have no
legal significance at this time.
Following discussion by members of the Planning Commission,
motion was made by C/Fong and seconded by C/Schad to leave the
verbiage as is. Motion was defeated 3-2.
AYES: C/Fong, C/Schad
NOES: C/Flamenbaum, VC/Plunk, Chair/Meyer
C/Flamenbaum made a motion that the first sentence of the
Introduction be eliminated. VC/Plunk seconded. Motion was
passed 3-2.
AYES: C/Flamenbaum, VC/Plunk, Chair/Meyer
NOES: C/Schad, C/Fong
In.response to VC/Plunk, Attorney/Montgomery stated that he
previously supplied the. Planning- Commission with a memorandum
citing the various Federal- cases from the Ninth District Court
of Appeal which speaks to the bucolic atmosphere which the
City may preserve. The first sentence of the introduction,
although it. does not define what it refers to, is an
appropriate statement to make, if the majority wishes the
statement to be there, as a matter of policy.
C/Fong made.a motion to add .the first sentence.of the.General
Plan Introduction back in with the word "primary10 eliminated.
C/Schad seconded. Motion was defeated 3-2.
AYES: C/Fong, C/Schad
NOES: C/Flamenbaum, VC/Plunk, Chair/Meyer
CDD/DeStefano indicated the Vision Statement was reviewed in
the beginning of the process.
Following discussion of C/Flamenbaum's suggestion to delete
the second bullet -of the third paragraph on page 1 of the
Introduction, "Preservation of Open Space Resources..."
Chair/Meyer moved to leave the paragraph as is. C/Fong
seconded the motion. Motion carried 3-2.
AYES: COMMISSIONERS: Ch/Meyer, Schad, Fong
NOES: COMMISSIONERS: VC/Plunk
ABSTAIN: COMMISSIONERS: Flamenbaum
ABSENT: COMMISSIONERS: None
July 16, 1994 Page 6 Planning Commission
- Chair -/Meyer made -- a - motion- --to-- leave -,. the _third __bullet of
paragraph 3, page 1 of the Introduction, "Reduction of
regional traffic impacts on .local streets ... 11 as recommended
by GPAC. C/Schad seconded the motion. Motion was adopted
unanimously.
C/Flamenbaum commented that he was troubled by things he has
heard from the audience and the public, such as 11GPAC made
this document,. do not change it...leave it intact01 and yet
those same people come up with. recommended changes. He
further stated, he feels it is his job as a commissioner to
review the document and make appropriate changes. Not one
person has said "don't change it". They are saying "change it
the way I want it".
C/Flamenbaum made' a motion to accept the rest of the
Introduction as is.
C/Fong commented that he had a problem with Figure 1, page 6,
of the Introduction, showing the proper meeting dates.
C/Flamenbaum restated thei motion to accept the rest of the
Introduction as is, with the understanding that it will be
revisited to insure that technical changes .will be made.
C/Schad seconded. Motion carried 4-1.
AYES:
NOES:
ABSTAIN:
ABSENT:-,
LUNCH:
RECONVENED:
COMMISSIONERS: -
COMMISSIONERS:
COMMISSIONERS:
COMMISSIONERS:
Chair/Meyer,
C/Fong, C/Schad
VC/Pluhkk
None
None
C/Flamenbaum,
Chair/Meyer recessed for lunch at 12:00 noon.
Chair/Meyer reconvened the meeting at 12:30
p.m.
CDD/DeStefano stated that the Planning Commission has received
the General Plan and the errata sheets, and understands the
open space and conservation State Code.requirements that are
part of the Resource Management Element. GPAC's changes dealt
with preservation of a number of resources within our
community, particularly, the existing undeveloped -and open
space designated land. GPAC was concerned with adequately
serving the community with passive and active recreation
facilities and clarify the requirement for parks for existing
and future residents. Clarifications were made to the table
July 16, 1994 Page 7 Planning Commission
which shows the park facilities now existing and what is at
each park. In addition; staff clarified some of the existing
resources, particularly in the area of scenic highways. GPAC
recommends that the Planning Commission preserve, to the
greatest extent possible, the existing agricultural land and
-and expand open space resources within the city and the sphere
of influence which are scenic, have esthetic value,, offer
c . ultural value and, in some cases, are of historical value.
GPAC clarified the need for a tree preservation ordinance to
specifically -identify five or six individual -species. GPAC
also indicated their very strong desire that no new
development be approved until such trees and natural
vegetation ordinance is in place.
Chair/Meyer opened the Public Hearing for the Resource
Management Element.
Mart-ha.Bruskd, voided herconcernthat since the format for
presentation of the elements has been changed, people may not
be prepared to reach conclusions today, since they may have
prepared for discussion of other elements.
Barbara Beach-Courchesne 0 questioned the accuracy of the first
and third paragraphs- on page 111-2, and the table on page III.
CDD/DeStefano reported he had ' d ' a correction sheet which more,
accurately depicts what. is available at. each -of the -recreation
facilities, including parking, etc.
Mrs.-Courchesne continued that on page ISI -6 regarding the.
problem -of waste, the City's sphere of influence should reach
into the City of Industry as to MRF since it will greatly
impact a number of residents within the city.
Max Maxwell, Diamond Bar resident, stated that ' a number of
GPAC members felt that parks and open space are two separate
issues and the numbers should reflect mathematically. how that
appears. In Resource Management Element Page 111-4 it needs
to be stated whether the park in the country is considered in
our city calculations.
Richard Callard, a Diamond Bar resident, discussed reclaimed
water and suggested deletion of the word waste and suggested
that use of reclaimed water be included on page.III-5, under
Item 4. Water Resources. He further recommended that the word
"must" be replaced with "shall" on the top line of page 111-8.
July 16,,*1994 Page 8 Planning Commission
Wilbur_Smith, Diamond Bar. resident,... suggested that new
development, be required to set aside some land for playgrounds
and for recreational facilities.
Terry Birrell, Diamond Bar resident, indicated page 4 of the
:GPAC minutes of June 30. . suggest that there was an adopted
strategy 1.1.13 that needs to be added to Objective 1.1. She
also stated the last sentence in 1.1.11 was deleted by GPAC.
CDD/DeStefano stated that Ms. Birrell is correct. 1.1.13 as
stated in the minutes should be inserted into the policy
document for Planning commission consideration.
Ms. Birrell also suggested that with respect to 1.3.2 the
introductory phrase should be deleted.
Gary Neely,,. Diamond Bar resident, reiterated his. written
statement which was. -included in the Planning Commission and.
GPAC members packet materials.
Chair/Meyer closed the public hearing.
CDD/DeStefano stated that A resolution needs to take place
with respect to Larkstorie Park, which is a park on paper, but
not in reality. The South Pointe area also needs additional
public park facilities. Responding to one of the speakers.,
CDD/DeStefano stated that the. . change on Page 3-7 in terms of
the errata was a simple change. The former page describes a
change to the Issue Analysis under bio'logical resources. That
addition to the issue analysis was relocated to. the Parks and
Recreation discussion. Also, regarding page 111-9, strategy
1.1.6,* the errata sheet indicates the motion and approval of
GPAC to pursue the preservation of areas within Diamond Bar,
and it's sphere of influence, of outstanding scenic, historic,
and cultural value. The change - on page III -11, the fourth
bullet. from the top of the page, the word "or" was changed.
Page 111-10, 1.1.13 as outlined by Ms. Birrell is correct and
should be added to Planning Commission deliberation. With
respect to 1.1-11, staff concurs with Ms. Birrell that the
last sentence beginning with "natural vegetation is..."
should have been stricken according to the actions of GPAC.
RECESS:
Chair/Meyer
recessed the meeting at
1:47
p.m.
RECONVENED:
Chair/Meyer
reconvened the meeting at
1:56
p.m.
July 16, 1994 Page 9 Planning Commission
Regarding Page III -1, a motion was made and , second to
eliminate "waste" wherever "wastewater" is indicated. Motion
,carried.
C/Fong recommended on'page 111-2 third paragraph, the last
sentence read: "Animals that once inhabited the valldy floor
have largely been forced into nearby undisturbed areas ....
There were no objections.
Motion was made by C/Flamenbaum and seconded by VC/Plunk to
strike "active/passive" from the last line of the second para-
graph on page 111-7. The sentence will read, •"Portions of these
areas should be preserved for parks." Motion carried 3-2.
AYES: Chair/Meyer, C/Flamenbaum, VC/Plunk
NOW: C/Schad, C/Fong.
ABSENT:. None
ABSTAIN: None
C/Fong suggested the word "probably" be stricken from -the
second sentence of the last paragraph on page 111-7. There
were no objections.
Motioned -by VC/Plunk and seconded by C/Schad to amend the
Issu6, Analysis• at. the top of -page 111-8 to readti "The City
must work with local water purveyors. � and',' landowners to
establish high water quality standard, encourage conservation,
Increase the use of reclaimed water`; and develop additional.
water resources." Motion carried..
C/Fong suggested that the word "grazing", be stricken from the
Issue Analysis under item 7 page 111-8. There were no
objections.
C/Fong suggested that "with the possible exception of oil and
hydrocarbons" be added to the statement, "There are no
significant; concentrated mineral resources in Diamond Bar,, on
page 111-81 under Mineral, Resources. The commissioners
agreed.'
Staff was directed to make the following changes apply to page
III -10:
1. 1. 11 Change to read: "Expeditiously develop a tree
ordinance.
1.1.12 Change to read: "New development should include
the preservation of significant trees of 'cultural .or
July 16,, 1994 Page 10 Planning Commission
historic value."
1.1.13'add _"develop A . plan to provide a mechanism for,
and to pursue the preservation of, designated open
space." per GPAC direction.
Staff was directed to make the following changes on page III -
1.2.5 strike.out plant & animal life and add in its
place, "Flora & Faunal'.
1.2.4 - Change to 'read: "Take an active role in
pursuing the preservations of environmentally sensitive
canyon areas in their natural state."
Staff was directed to make the following changes on Page III -
12:
1.3.7 - Replace the first word "develop°' with the word
"complete".
1.3.8 - Replace the first word "prepare", with the word
"complete".
1.3.9 - Strike existing sentence and replace with "Work
with property owners and neighboring jurisdictions to
plan and locate an untreated potable water reservoir in
the upper Tonner Canyon/Tres Hermans -Ranch area.
Planning should encourage recreational or, agricultural
uses.
Staff was directed to make the followAng changes on Page III -
13:
2.1.1 - a. Reword to read: "In cooperation with' adjacent
communities and area water purveyorso, expand the use of
reclaimed water; require. new development and significant
intensification of existing development to include dual water
systems as feasible."
ADJOUREMEW
On the advice of CA/Montgomery, Chair/Meyer Adjourned the meeting
at 3:00 'p.m. to . July 18, 1994'at . 7:30 p.m. at the South -Coast Air
Quality Management District Auditorium.
MINUTES OF THE CITY OF DIAMOND BAR
REGULAR MEETING OF THE PLANNING COMMISSION
JULY 181 1994
CALL TO ORDER
Chairman Meyer called the meeting to order at 7:30 p.m. at the
South Coast Air Quality Management District Office, Diamond Bar,
California.
PLEDGE OF ALLEGIANCE
The audience was led in the Pledge of Allegiance by Chairman Meyer.
ROLL CALL
Present: Chairman Meyer; Vice Chairwoman Plunk;
Commissioners: Flamenbaum, Schad, and Fong
Also Present: Community Development Director James
DeStefano; 'Associate Planner Rob Searcy;
Assistant Planner Ann Lungu; Interim City
Attorney Michael Montgomery; Engineer
Consultant Mike Myers; and Administrative
Secretary Marilyn Ortiz
Absent: None
MATTERS FROM THE AUDIENCE/PUBLIC COMMENTS - None
CONTINUED PUBLIC HEARING:
i. ADOPTION OF THE GENERAL PLAN
VC/Plunk registered heir -complaint about calling a•meeting on
this night.
Chair/Meyer announced- that the Planning Commission will
continue the review of the Resource Management Element where.
the July 16 meeting ended on page III -14 with strategy 2.1.5.
He referenced correspondence from Bob Rose, Community Services
Director which deals with this section of the General Plan.
Chair/Meyer indicated he wished to conclude the Planning
Commission review and go back to the correspondence from
CSD/Rose.
Motion was made by C/Schad and seconded by C/Flamenbaum to
accept Objective 2.2 and strategies 2.2.1 and 2.2.2 on page
III -14 of Resource Management Element as presented.
Motion carried 5-0.
V/C Plunk suggested the following changes and the
Commissioners concurred:
Page III -15,,2.2.4 - Insert "discourage" and strike out
"prohibit" so the sentence reads: "......solar pool and
hot tub provisions that will discourage natural gas
heaters as the primary energy source."
July 18, 1994 Page 2 Planning Commission
Page 111-17, 2.5.7 "Promote reduction of the amount of
yard waste generated by public and private residences
through ongoingpromotion of green waste by onsite
composting of. leaves and other organic materials in a
manner that is safe and clean."
The commissioners requested staff to -review the June 28, 1994
GPAC meeting tape to determine the reason for text added on
Page 111-18 and determine where it should be placed or if it
should be deleted.
The Commissioners directed staff to insert the information
provided by CSD/Rose into the tables on Pages 111-4 and 111-5
within the Resource Management Element.
Chair/Meyer stated the. Public Services Element is the next
agenda item.
CDD/DeStefano stated this is the Public Services. and
Facilities Element. It is an optional element and not
required by any aspect of State Law. It is generally an
element which ties together the provi - sion of the municipal
services which are .needed and the resources which are:
necessary to, acquire or implement those services. GPAC
reviewed the element on.June 30 and the changes are noted. -
Chair/Meyer declared the public hearing open and invited those
wishing to speak to come forward. Chair/Meyer stated he has
a request from one individual to speak and asked him to limit
his discussion to the Public Services and Facilities Element.
Gary Neely, 344 Canoecove Drive,.Diamond Bar,. -suggested that
this element be-,- deleted and the godls, objectives, and
strategies be distributed throughout the General Plan where
appropriate.
Mr. Neely requested that the Resource Management verbage be
used in strategy 1.1.5a and 1.1.5b on Page VI -4.
With respect to Page VI -5, strategy 1.3.3, Mr. Neely asked
that the following language be added: "Encouragd the plans of
the Pomona Unified School District to construct a new
elementary school on Pantera Drive in the City of Diamond Bar.
As part of the elementary school's development, encourage
joint use of recreational facilities.."
Mr. Neely further suggested the re -wording of strategy 1.4.2
as follows: "work with the state and property owners in other
jurisdictions.and agencies to plan and locate a new limited
enrollment 7,000 student University of California campus
within the Tres Hermans Ranch area in Diamond Bar."
Mr. Neely requested strategy 2.1.1, page VI -6, wording be
replaced as' -follows: "work with state officials and local
elected representatives to make a determined effort to promote
statewide legislation that would secure guaranteed,, long-term,
July 18, 1994 Page 3 Planning Commission
stable financing of local. governments based primarily upon
property tax revenues. Alternatively, support legislation
that would redistribute sales tax revenues to local agencies
based upon an equitable formula which would include both the
location where the sales tax revenue was collected, and the
population of each local agency involved."
Wilbur Smith, 21630 Fairwind Lane, Diamond Bar, requested
strategy 1.1.7 be added to read: "Require that automobile
services facilities provide air, water, and clean restrooms at
a nominal cost."
Max Maxwell, a Diamond Bar resident, requested meeting dates
and agenda.
Barbara Beach-Courchesne, 2021 Peacefull Hills Road, Diamond
Bar, voiced opposition to specificity with respect to Page VI -
5 1.3.2. In addition, she asked that "joint effort would be
for the benefit of keeping the costs down for the citizens.,,
Chair/Meyer announced that - the Public Services and Facilities.
Element portion of the Public Hearing is closed.
Motion by C/Fong, second, by VC/Plunk to move objective 1.3
page . 1-18, strategy 1.7.1, strategy 1.7.2 and strategy 1.7.4
to Public Services and Facilities Element (to be appropriately
numbered by staff) and, include strategy 1. 7. 4 in the
Circulation Element. Motion carried 5-0.
There was discussion regarding rewording of the 3rd paragraph
on Page.VI-3. City Engineer Myers suggested the following
wording: '"The City should consider its,rdsponsibility under
the National Polution Discharge Elimination .System (NPDES),
including to the maximum extent possible, reasonable measures
to minimize the impacts of urban stozmwater pollution as it is
collected, conveyed and discharged through the City's flood
control system." The Commissioners concurred.
It was agreed to strike "such as rail haul systems" from the
4th paragraph on Page VI -3.
It was agreed to add "or explore joint usage agreements" on
Page VI -3, 6th paragraph, so the second sentence now reads,
"The City may want to consider providing for its own library,
or explore joint usage agreements possibly as part . of a
centralized civic center complex in the future.
It was agreed to delete "may wish to" on Page VI -3, 7th
paragraph, and add in its place, - "should" so that the second
sentence now reads, "the City should take a more active role
in energy conservation- and the development of new energy
technologies."
It was agreed to strike the word "all" on Page -VI -3, 9th
paragraph, and change the first sentence -to read: "Local
schools are presently experiencing overcrowding -at some
July 18# 1994 Page 4 Planning commission
locations at different levels."
It was agreed to strike the words "investigate" and "an
untreated potable" on Page VI -4, strategy 1.1.5, a., and
change to read: 11monitor plans by the Metropolitan Water
District and City of Industry to locate a water reservoir in
upper Tonner Canyon."
It was agreed to strike the existing sentence on Page VI -4,
strategy 1.1.5, b., and replace with: "Support development of
environmentally- sensitive waste treatment facilities which
will have minimal impact on the City and local communities."
Motion was made by Chair/Meyer toadd the words. "where
feasible" at the end of 1.1.6, Page VI -5. Motion died for
lack of second.
V/C Plunk moved to add 1.3.3 on Page VI -5 to read: 14Encouragp
joint development of recreational facilities including the
Pantera Elementary School site."
Chair/ Flamenbaum stated he would support the statement without
naming a specific school.
V/C Plunk amended the motion as follows: "Encourage joint
development of recreational facilities with the local school
districts." Motion seconded by C/Flamenbaum. Motion carried
5-0.
Moved by C/Fong, seconded by VC/Plunk to amend Page VI -5,
strategy 1.4.2, as follows: "Monitor plans of the University
of California to locate new campuses in Diamond: Bar. 11, Motion
carried '3-2.
Moved by C/Flamenbaum, seconded byN C/Schad to add back in
strategy 2.1.1on Page VI -6, with the "following verbage:
"Promote' the intensification of the sales tax generating
potential of existing and future commercial areas within the
City." -
RECESS: Chair/Meyer recessed the meeting at 9:40 p.m.
RECONVENED: Chair/Meyer reconvened the.meeting at 9:58 p.m.
Chair/Meyer restated the order of the draft elements for the
new and improved General Plan as follows:
Introduction - completed
Resources Management Element - completed
Public Services and Facilities - completed
Public Health and Safety Element
Housing Element
Circulation Element
Land Use Element
July 18, 1994 Page S Planning Commission
Moved by C/Flamenbaum,-seconded by VC/Plunk to continue the
public hearing,to Monday, July 25, 1994, 7:00 p.m. Motion
carried 3-2.
Moved by C/Flamenbaum, seconded by C/Schad to set Thursday,
July 28, 7:30 p.m. as a follow-up meeting, if needed. Motion
carried 5-0.
Moved by C/Flamenbaum, seconded by VC/Plunk to set the next
meeting for Monday, August 1, 1994 at 7:00 p.m. Motion
carried 5-0.
Chair/Meyer announced the following scheduled meetings:
Thursday, July 25, 1994 at 7:00 p.m..
Monday, July 28, 1994 at 7:30 p.m.
August 1, 1994 at,7:00 p.m. I
Chair/Meyer stated the agenda for the above scheduled meetings
will be as follows:
Public Health and Safety Element
Housing Element
Circulation Element:
Land Use,Element
Chair/Meyer declared the meeting ajourned.at 10:20 p.m.
1�
DATE: September 8, 1994
TO: Chairman and Planning Commissioners
FROM:. Robert Searcy, Associate Planner
RE: General Plan Circulation Element Distribution and Ongoing Discussions
The Circulation Element changes are included for your review and comments. The revisions
are the result of the Commission review and direction from the August 30, 1994 meeting.
The revisions range from grammatical modifications, relating the need for an inter -connected
trail system, to revisions that bring the internal consistency to the mandated levels:
The Land Use Element is the final chapter to be reviewed by the Commission. The Land
Use Element is intrinsically tied to all the elements of the General Plan and is often discussed
and focussed on with much more scrutiny than other elements. Although all elements are
equally weighted in importance, there is a perception that the Land Use Element is the
premier subject within. a General Plan.
The Commission previously received the State guidelines for requirements of each element.
Staff also has provided the Master Environmental Assessment, the Master Environmental
Impact Report and the available minutes of the GPAC to assist in providing background
information in the decision making process.
The Planning Commission has targeted the'September 26, 1994 meeting as the final public
hearing on the General Plan. With that in mind, staff points to past performance as a good
indicator of the future and recommends that the Commission consider an additional meeting
to provide another opportunity for review prior to adoption. The public hearing could be
scheduled for the Wednesday, the 14th or Thursday, the 15th of September or the following
Monday or Wednesday. Because of'production constraints, staff also recommends that the
additional meetings be held as close to the September 12th meeting as possible.
C:\LETTER\REPORTS\CIRCULAT.MEM
V. CIRCULATION ELEMENT
This document contains the corrections/additions/deletions discussed at the
August 30 Planning Commission Meeting.
Significant changes are noted in the left margin by »»»» ; specifically pages
V-6, V-18 and V-22
V. CIRCULATION ELEMENT
A. INTRODUCTION
The purpose of the Circulation Element is to define the transportation needs of the City and present a
comprehensive transportation plan to accommodate those needs. The focus of this plan element 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 guide the orderly improvement of the circulation
system within the City in a manner which will protect the quality of life 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 father 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 City
incorporation. This circulation element provides the fust 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 Circulation Element addre§�es the following issues:
• Streets and Highways
• Transit and Paratransit Services
• Railroad Lines
• . Bicycle; IMM M and Equestrian Trails
• Aviation
• Goods Movement
Diamond Bar General Plan Circulation Element
August 30, 1994 Pknning Commission Revisions V-1
The components of the circulation system in the City of Diamond Bar include the following:
0 .Streets and Highways
® Transit and Paratransit Services
® Railroads
® Bicycle; I&
�n& and Equestrian Facilities
® Aviation
® Goods Movement
Each of these are described below:
1. Streets and highways
a. Functional Classification, defini io and t
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 functioia. The design and operation of 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 limits, 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. H 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., The C& of Diamond AM defines four functional classification t +des
of roadwas as follows•Q.
e Freeways
® Arterial Streets
® Collector Streets
® Local Residential Streets
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions v-2
The following seetion describes the geometric and operational characteristics defined for the va s functional
classifications of 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 desired 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, and limited access to arterial streets. Freeways contain
anywhere from 4 to 12 lanes with recommended design volumes from 80,000 to 210,000 vehicles per day.
Arterial streets carry the majority of traffic entering or traveling through the City. A "major arterial has
either four or six lanes, four th�ronghIMffic and ma contain additional lam to accommodate tu.
movements . RUkin and bic cls tra�ffi®, all within aright -of -way of 100-120 feet. A "secondary" arterial
serves the same function as a major arterial, but has four lanes for thmuhm trafficanted ma cow additional.
lanes to accommodate tum movements, arkin a� bic cls t all within aright -of -way of 60-100
feet. The desiredd roadwa ca aci on arterial nleaverages from
30-WO22 500 to 60.W045 000 vehicles Mer 1a depending on number of lanes, t r=e and widA oaf direction
separation. of on -street a confieuration and uenc of access to int land uses� and
intersection configurations.
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 arterial are generally limited to minimize
disruption to traffic 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 business collector streets
and residential collector streets.
Business cCollector 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
desired roadwa ca aci on a buses collector 'street Cain beave up to 20,000 vehicles per day while
rovidin
Uvel of• Sem LOs C,. . .
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. The desired Ma®dway 212lgiX on
reside collector streets am generally �a�®� uu t= 10,000 vehicles per, day while rovidin
LOS C. 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
fromting commercial development or extra wide cross sections.
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. The desired roitv Traffie
"x` should note aw ? >:':;:•x.;}:.}i}:• •?'?:•: wbout 2,500
volumes an on a i'�!#� �,
vehicles per day and 200-300 vehicles per hour. The maximum residential traffic volume which is acceptable
to persons living along a street may vary from one street to another depending upon roadway width, type of
dwelling units (i.e., high densityapartments versus single-family homes), presence of schools and other
factors. The maximum volume of 2,500 is, therefore, to be used as a guide only,
j'}:..!E!E#t..;.: sftt'�'p�CE`• 3, ,.
Diamond Bar General Plan Circulation Element
August 30,19% Planning Commission Revisions V-3
Local residential streets include those streets predominantly residential in terms of adjacent property use, and
are intended to retain a residential character. They are typically not designated in the General Plan Circulation
Element.
b. Level of Service Standards
Level of service standards- define the desirable. -traffic-volumes ,on -City streetsinrelation-.to-the capacity of
those streets. The City has utilized level of service standards in the traffic analysis work for the General Plan,
and these are summarized in the EER. The City should continue to use such standards, maintaining and
updating them when necessary to be consistent with current prevailing standards in the region and
requirements such as the statewide Congestion Management Program. am• ;,
a�..:...::.:....
Diamond Bar General Plan Cirr culation Element
August 30, 19% Planning Commission Ravisions V4
Table V-1
Daily Roadway Capacity Values
6 Lanes Divided
Major Arterial
33,900
39,400
45,000
50,600
56,300
4 Lands DividedSecondary
22,500
26,300
30,000
33,800
37,500
Arterial
Very good operation. Many drivers begin to feel somewhat
-.61-.70
restricted within platoons of vehicles. This represents stable
4 Lanes (Undivided)
Business Collector
15,000
17,500
20,000
22,500
25,000
2 Lanes (Undivided)
BusinessCollector/
than 60 seconds, and back-ups may develop behind turning .
vehicles. Most drivers feel somewhat restricted.
Residential Collector
7,500
8,800
10,000
11,300
12,500
2 Lanes (Undivided)
Local
1,875
2,190
2,500
2,810
3,125
Poor operation. Some long-standing vehicular queues develop
ReedResidential
on critical approaches to intersections. Delays may be up to
several minutes.
F
Forced Flow. Represents, jammed conditions. Backups from
Over 1.00
locations downstream or on the cross street may restrict or
ve of SeryUceinterpretation
prevent movement of vehicles out of the intersection approach
Source: Based on National Academy of Sciences, Highway Capacity Manual, 1965 and 1986
Diamond Bar General Plan Circulation Element
V_5
August 30, 1994 Planning Commission Revisions
Volume -to
LOS
Description
Capacity Ratio
A
Excellent operation. All approaches to the intersection 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 somewhat
-.61-.70
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 wait more
.71-.80
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 more than
.81-.90
60 seconds during short peaks. there. are no long-standing
traffic queues. This level is typically associated with design
practice for peak period.
E
Poor operation. Some long-standing vehicular queues develop
.91 - .100
on critical approaches to intersections. Delays may be up to
several minutes.
F
Forced Flow. Represents, jammed conditions. Backups from
Over 1.00
locations downstream or on the cross street may restrict or
prevent movement of vehicles out of the intersection approach
lanes; therefore, volumes carried are not predictable. Potential
for stop and to type traffic flow.
Source: Based on National Academy of Sciences, Highway Capacity Manual, 1965 and 1986
Diamond Bar General Plan Circulation Element
V_5
August 30, 1994 Planning Commission Revisions
C. Roadway Systems
1 Roadwa Classification
The General Plan Circulation Element roadway system is illustrated in Figure V-1 and summarized in Table
V-, , For comparison purposes, the table also shows the previous County roadway designations. The system
is defined according to the classifications described earlier in this Element.
W)AD Ineluded in The roadway system a- fi re i re Y.J12 references potential corridors. One set
reference addresses future access needs for the school site in the Tres Hermanos Ranch property (Strateg%
1.3.4anted a 2.2.2) and the other for a regional peripheral corridor providing access between Chino Hills
mummumumParkway and the SR -57 freeway. Strate 1. 1.4 and Strate 1.6.3 of the Land Use Element
2 Roadway Aver Dalt TrafF
Table V-3 liststhe existing desired Avera a r Ca acit Existing a Future estimated Avera a Dail
��
Traffic Volumes and the Volume -to -Capacity Ratios for various se ents of the arterial streets in Diamond
Bar. Most values shy are based either uvon single dav counts or an average of multi le da�l�' r counts fob
icai dna s� enerall a ted to be Tuesda throu h Thursday, with traffic unaffected bv holida s
inclement weather, or other im invents to normalmummummummal traffic conditions. Avera a Dail Traffic Volum
obtained mor to1990 have been modified bv an a� wth facto ofMan 2IMMIN
Althou h.there are additional �ratio 1.0
ttisV3
report indicates there are currently six arterial roadwa se ents where Existin Avera a Dail Traffic
Volumes actuallv exceed minimum accentable volumes four level of service OS P The a
Diamond Bar Boulevard south ofGrand Avenue. 1.03
XONMMMMI
Diamond Bar Boulevard nomummummak of Golden S rip s Drive 1.09
Diamond Bar Boulevard southoaf unset Crossing Road 1.04
lo�Brea Can on Road north of Pmummummumathfinder Road lAl
Brea Can on Road n� ofMMMR the Pomona 60 Freewa LIM-2291
Brea Can on Cutoff Road south of Pathfinder Road 1.0
3 Intersection (Operating Conditions in 1hit &f Diam nam
Wiring conditions have been considered . att 33 kms' si alized intersections and three unsi ized
intersections. Traffic volumes four each intersection were collected on a tvvical weekdadurin M and FM
2& traffic mriods. MoWng veak hcounts w.ere teen between 7:00AMMONIUMAM and AM and evenin
hourcounts wereMummalS taken between 4.00 PM and 6.00 PM.—mMMMM The measured volume was then coinared to
mum
the Ste. Caltrans standard to determine the Volume -to -Capacity Ratio, a intersection beinghence
described by a Level of Service &OS .
Thirty-three i I Intersection have bkM considered utilizing the Intersection Ca ac;it Utilization
I methodology
to determine a tines Levels oaf Service amt signalized intersections. Levels oaf ervice
OS values are defined as shown in Table V-1. Within urban areas: LOS D is icall assumed to be the
.o ®.s
maximum acceptable LOSS during hour traffic: At Los E congestionbegiffl tooccur. in ffijgjtfties and
four durations beand acceptable limits. Althou h it is theoretically imtwssible to o ® F �t s
to indicate that the travel demand forSomali the intersection exceeds the Macauca i Intersections with LOSE and LOS
mumF mammus
will experience significant congestion durin the hours. The duration of this congestion ®d ndent
a.
u2on man operational considerations which � bammume evaluated durin the o ti®'o�n f the intersection.
11RHa lane ca acities of 1 600 vehicles ger lame mer hManaging! w nuxmmzmassumed withmmmum 0.10 xmm�additional increment for
elm
or loss tie. ThisMMmmM` consistent wi the ost recent recommendations included in the Los Angeles
Coup Congestion Management Plan.
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V'6
CIIYLT ms
SPHERE OF 14PLUENCE,
PICEEWA
hWORAIMMM GENERAL PLAN
i� SEMXMWdXIEUAL Figure V-1
Circulation Element
Roadway System
Diamond Bar General Plan Circulation Element
V-7
August 30, 19% Planning Commission Revisions
mar
ra scAL,
M SIMIZOua 1.&3 or
TMZ LAND usa ZLsNZxr
'
AND LII OF THM
CiRCULAaort ZLZMZWT
hWORAIMMM GENERAL PLAN
i� SEMXMWdXIEUAL Figure V-1
Circulation Element
Roadway System
Diamond Bar General Plan Circulation Element
V-7
August 30, 19% Planning Commission Revisions
Table V-2
City of Diamond Bar Roadway Classification
Diamond Bar Blvd.
Major
Major
100
100
Golden Springs Dr.
Major
Major
100
100
(w/o Brea Canyon Rd.)
Golden Springs Dr.
Minor
Secondary
80
80
(e/o Brea Canyon Rd.)
Grand Ave.
Major
Major
100
100
Pathfinder Rd. (e/o Brea Canyon Rd. -west
Major
Major
100
100
leg)
Pathfinder Rd. (w/o Brea Canyon Rd. -west
Minor
Secondary
80
80
leg)
Brea Canyon Rd..(s/o
Minor
Secondary
80
80
Golden Springs Dr.
Brea Canyon Rd. (n/o
Major
Major
100
100
Golden Springs Dr.)
Lemon Ave.
Major -
Residential-
60
64
(s. of Golden Springs Dr.)
Collector
Lemon Ave.
Major
Secondary
80
80
(n. of Golden Springs Dr.)
Sunset Crossing Rd.
East -of SR57
Minor
Residential-
60
80
Collector
West of SR57
Minor
Residential
80
(Cul de sac)
Washington St.
Minor
Cul-de-sac
80
80
Beaverhead Dr.
Minor
Cul-de-sac
64
80
LycomingSL
Minor.
Cul-de-sac •
64
80
Brea Canyon Cut -Off Rd.
Ltd Secondary
Secondary
64-80
6480
Chino Hills Pkwy.
Major
Major
100
100
*Los Angeles County Highway Plan
Diamond Bar General Plan Circulation dement
August 30, 1994 Planning Commission Revisions V-8
Table V-3
City of Diamond Bar Freeways Arterials
Existing and Estimated Future Average Daily Traffic (Without Tonner Canyon Road)
Location
Existing
Capacity (a)
Average
Daily
Volume(b).
Existing
V/C
Future
Average
Daily
.Volume
V/C
Diamond Bar Boulevard:
e/o Brea Canyon Road
30,000
17,400
0.58
48,000
1.60
s/o Fountain Springs Road
30,000
20,700
0.69
48,600
1.62
s/o Pathfinder Road
30,000
27,000
0.90
52,300
1.74
n/o Pathfinder Road
30,00
28,200
0.94
54,200
1.81
s/o Grand Avenue
30,000
31,000
1.03
60,000
2.00
n/o Grand Avenue
30,000
24,400
0.81
36,500
1.22
n/o Steep Canyon Road
30,000
25,000
0.83
38,000
1.27
s/o Golden Springs Drive
30,000
29,300
0.98
44,000
1.47
n/o Golden Springs Drive
30,000
32,800
1.09
49,900
1.66
s/o Sunset Crossing Road
30,000
31,300
1.04
47,000
1.57
n/o Highland Valley Road
30,000
18,60
0.62
28,300
0.94
s/o Temple Avenue
30,000
16,700
0.56
.25,800
0.86
Golden Springs Road:
wto Calbourne Drive
30,000
17,700
0.59
26,900
0.90. .
w/o Lemon Avenue
30,000
19,800
0.66
30,000
1.00 .
e/o Lemon Avenue
30,000
19,900
0.66
30,300
1.01
w/o Pomona Freeway
30,000
22,100
0.74
33.600
1.12
w/o Brea Canyon Road
30,000
29,200
0.97
44,400
1.48
e/o Brea Canyon Road
30,000
19,300
0.64
. 29,300
0.98
w/o Copley Drive
30,000
18,000
0.60
27,400
0.91
w/o Grand Avenue
30,000
19,700
0.66
29,300
0.98
e/o Grand Avenue
30,000
20,700
0.69
31,400
1.05
w/o Prospectors
20,000
16,500
0.83
25,100
1.26
w/o Diamond Bar Boulevard
20,000
16,600
0.83
25,200
1.26
Diamond Bar General Plan Circulation Element
V-9.
August 30, 19% Planning Commission Revisions
Table V-3 (continued)
City of Diamond Bar Freeways Arterials
Existing and Estimated Future Average Daily Traffic (Without Tonner Canyon Road)
Existing Future
Existing Average Average
Location Capacity (a) Daily V/C Daily V/C
Volume(b) Volume
e/o Diamond Bar Boulevard
20,000
16,400
0.82
24,900
1:25
s/o Temple Avenue
20,000
10,600
0.53
16,100
0.81
Grand Avenue:
w/o Golden Springs Drive
30,000
27.400
0.91
49,100
1.64
e/o Golden Springs Drive
30,000
24,700
0.82
42,000
1.40
e/o Diamond Bar Boulevard
30,000
19,700
0.66
55,000
1.83
Pathfinder Road:
w/o Peaceful.Hills Road
30,000
4,300
0.14
6,600
0.22
w/o Orange Freeway (SB)
25,000
14,600
0.58
22,200
0.89
e/o Orange Freeway (NB)
30,000
20,200
0.67
30,700
1.02
W/o Diamond Bar Boulevard
30,000
13,000
0.43
19,800
0.66
Brea Canyon Road:
s/o Silver Bullet Drive
30,000
8,000
0.27
12,200
0.41
n/o Diamond Bar Boulevard
30,000
4,400
0.15
6,700
0.22
s/o Pathfinder Road
30,000
7,600
0.25
11,600.
0.39
n/o Pathfinder Road
30,000.
10,100
0.34
15,400
0.51
s/o Golden Springs Drive
30,000
15,500
0.52
23,600
0.79
n/o Golden Springs Drive
30,000,
28,300
0.94'
42,200
1.41
n/o Pomona Freeway
30,000
32,700
1.09
48,700
1.62
n/o Washington Street
30,000
20,500
0.68
30,600
1.02
Brea Canyon Cut -Off Road:
s/o Pathfinder Road
10,000
10,500
1.05
16,000
1.60
Lemon Avenue:
n/o Golden Springs Drive
30,000
12,100
0.40
18,400
0.61
Walnut Drive:
n/o Golden Springs Drive
20,000
5,200
0.26
7,900
0:40
Diamond Ear General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-10
al Capacity represents level of service C (traffic flow conditions as shown on Table V-1)
b) Existing Volume represents 1989 count adjusted by 2'% annual to 1991
c) Future volume represents a 1991 projection of year 2010 traffic conditions made by application of a Traffic
Forcast Model developed by DKS Associates.
Diamond Bar General Plan Circulation Element
V-11
August 30, 1994 Planning Commission Revisions
lan
Table V-3 (continued)
City
of Diamond Bar Freeways Arterials
Existing and Estimated Future Average Daily Traffic (Without Tonner Canyon Road)
Existing
Future
Existing Average
Average
Location
Capacity (a) Daily V/C
Daily V/C
Volume(b)
Volume
Chino Hills Parkway:
n/o Chino Avenue
30,000 8,100 0.27
35,000 1.17
Chino Avenue:
e/o Chino Hills Parkway
10,000 4,500. 0.45
17,200 1.72
Pomona Freeway. (SR -60):
w/o Brea Canyon Road
173,000
255,E
w/o Grand Avenue
233,000
361,000
e/o Diamond Bar Boulevard
147,000
201►000
w/o Phillips Ranch Road
147,000
179,000
Orange Freeway (SR -57)
n/o Diamond Bar Boulevard •
182,000
308,000
n/o. Pathfinder Road
184,000
280,000
n/o Sunset Crossing Road
135,000
187,000
al Capacity represents level of service C (traffic flow conditions as shown on Table V-1)
b) Existing Volume represents 1989 count adjusted by 2'% annual to 1991
c) Future volume represents a 1991 projection of year 2010 traffic conditions made by application of a Traffic
Forcast Model developed by DKS Associates.
Diamond Bar General Plan Circulation Element
V-11
August 30, 1994 Planning Commission Revisions
lan
Table and F show the entire results of the Level of Service anal for the 33 si n
intersections, in addition to AM and PM eak LOS for those intersection with deficient Levels of Service.
Q "nn the ? M geak rind three si alized intersections in the Citv o to at Levels of Service E or F.
These intersections are:
Diamond Bar Boulevard & ®Can on Road
Diamond Bar Boulevard & Mountain Laurel ZAA
Pathfinder Road & the southbound 57Freewa on/o ramos
The remaining 30 signalized intersections are currently o ra�fin at Levels of S A throu h D d the
�
AAM Rok nods which indicate acceptable o2eratin conditions.
the M Rglk. gedod s� si alized intersections experience Levels Service E �r F Those
intersections are:
Diamond Bar Boulevard & Pathfinder Road
Diamond Bar Boulevard & Mountain Laurel Wa
Diamond Bar Boulevard & Grand Avenue
Diamond Bar Boulevard & Temple Avenue
Golden S rip s'Road & Grand Avenue
Brea Can o Road & the westbound 60 Freewa on/off ram
Acceptable Levels of Service exist at the remaining 27 signalized intersections Burin M 201'ods.
Three Un -signalized Intersections have been considered. ILMI alized intersections are analyzed differently
than, signalized intersected to different o ratio characteristics. While at dogM intersections aalll
approachesare sub'ect two dela amt un -signalized sto si controlled dela de ndent the approach -its
requirement is ston - and the distribution of traffic between approaches. The three un -signalized intersections
studied all showed and/or PM peak hour Levelsof ServiceMmimmin. E or F. Those intersections are:
Sunset Crossilmr Road & the southbound 57 Freeway► on/off
Diamond Bomar Blvd./Brea Can on Cut-off � & the southbound 57 Freewa o��
ra�m,�s
Diamond Bar Blvd./Brea Caa on Cut-off Road & the northbound 57n/offFreewa o
ram '
4 Intrusion of Through Traffi
Traffic on the streets of Diamond Bar consists of motorists who live work and shoo iin the CX of Diamond
�� � �
Bar imus motorists who are C&sin trough the Ci ►but do not i� for EX reason. The alignment of the
of�
Ci 's three most significant arterial streets.. Diamond B® Boulevard, Golden S rip s Road and Grand Avenue
results in large volumes of through traffic.
Currently: dgd.ne�ak commute . congestion its h ► alon the 57 and 60 Freeways, particulazly
throwh� the one -mile loin section of freewav within Diamond. Bar wherethe 57 Freewaycorrespondswith
the 60 Freewa and in the se ent of the 60 Freewa immediately east oaf the 57 Freewa where the ca ci
of the 60 EMgway is reduced to three trays lanes a direction, Congestion particularly hes Burin
AM and M traffic hours. Diamond BBsocalcammBarr Boulevard its an attractive alternative route 'maril dine tto
Diamond Bar General Plan Circulation Element
August 30,' 1994 Planning Commission Revisions `%-121
interchanges w the freeway at both the southern and northern sections of the Com. Diamond Bar Boulevard
intersects with the 57 Freewa south of the Mere and at the northern divergence of the 57 Freewa and the
60 I~reewa In addition, it serves as a shortcut to traffic traveling to or from San Bernardino Coun via
Diamond Bar General Plan Circulation Element
V-13
August 30, 1994 Planning Commission Revisions
Table V-4
AM and PM Peak Hour Level of Service
at signalized Intersections
Intersection'
AM Peak Hour
Volume -to- Level of
Capacity Service
PM Peak Hour
Volume -to- Level of
Capacity Service
Diamond Bar Blvd./Brea Canyon Rd.
1.32
F
.088
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 Lurel 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 Crossing 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
Golden Springs Dr. /Lemon Ave.
0.59
A
0.72
C
Golden Springs Dr.BB 60 Ramp
0.66
B
0.73
C.
Golden Springs Dr.JBrea Canyon.Road
.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./BB 60 Ramp
0.58
A
0.75
C
Grand Ave./Montefino Ave.
0.64
B
'0.82
D
Grand Ave./SummitridgeDr.
0.80
C'
.0.73
C .
Grand Ave. /Longview Dr.
0.56
A
0.60
A
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
0.59.
A
Brea Canyon Rd./Washington St.
0.50
A
0.60
A
Chino Hills Pkwy./Chino Ave.
0.33
A
0.28
A
1. Based on Maximum Average Daily Traffic Volumes from Table V-1 for Level of Service (LOS)
2.
3.
Dimond Bar General Pian Circulation Element
August 30, 1994 Planning Commission Revision® V-14
m '
Diamond Bar General Plan Circulation Element
V-15
August 30, 1994 Planning Commission Revisions
Grand_ Avenue. These =factors result in a large intrusion of commuter traffic use Diamond Bomar Boulevard
to travel between areas to the south of the C� and jurisdictions north and east of Diamond Bar.
Golden S rin s Drive is also utilized as an alternative route for avoiding thecon ested sese ent of combined
freewayPjnjpg AM 2S& traffic, the r utilized kX traffic travelin west from the 60 Freewaand
southbound on the 57 Freewaytowards the westbound 60 Freewa corridor west Of the Citv The Diamond
Bar Boulevard exit is used to access Golden S Drive, with traffic continuing west on Golden S min s
Drive/Colima Road eves reen�terin , the westbound 60 FreEwa + haond the gamt of coneestion.. The
same mute is also used Burin PM veak traffic with traffic exitin the eastbound 60 Freewa at either the
Azusa Avenue Fullerton Road. Nogales Street exits in Rowland Heights or the Brea Can on Road exit in
Diamond Bauer, and re-enterine either the eastbound 60Freeway or the northbound 57 Freewa at Diamond
Bar Boulevard.
Grand Avenue is currentiv the onlv east -west roite which directiv serves the developing central Chino I�1"iUS
area. Although the 60 Freeway accessible to the north, hea congestion alon this freewa makes Grand
Avg attractive forvehicular traffic travelin between the C Hi11®� oof ®Bernardino
coum and areas west of Diamond Baraloin the 60 Freewa corridor towards Ins An eles as well as south
of the QX along the 57 FWwa corridor towards no Orange Countv.
In Februa of 1994. The C& of Chino Hills documented that 50 of the workingadults in their ci of
�. ®�
40 � residents 16 286 households commute ttoo w iinn Los Angeles Coun 30 conommmmmute to w in
Orame Coupand 2gU MI commute to work in San Bernardino or Riverside Counties. The Ci ► of Chi
IIu�IIs General Plan currentiv allows for an additional 10.529 households La 65 increase to total nearl 80.000
esidents in 26 815 householdsj.Vg2n. that 2WLs build -out.
To uanti the magnitude of throw h traffic the Ci a license late surve conducted. A discussion
of this stud 's methodology iand the tom fete results of the anal sis is contained in the Master Environmental
Assessment document.
The results from this anal sis confirmed the three vrincinal arterial routes within the Citv is have significant
Wert® of their total traffic volumes comprised of vehicles m�aldng through tri• Most of the throw
tris jadW the PM Rea®k flow riod occurred, on Diamond B� Boulevard. Golden S cin Road and Grand
Avenue and were observed exiting the City int6 S® Bernardino C2Lnq Avenue. In flict. Granted
Avenue •of Diamond Bar Boulevard is the arterial segment ex 'encin the Lm
gyest volumes of through
tn�' traffic within the Ci
Besides heav commuter and significant through traffic volumes along arterial streets within the QM
ro of commuter traffic intrusion have been idem by residents on nth streets jj the Q ..
Due to the a eyrl odor o tin conditions anted significant dela �s eznerienced amt the intersection of
Diamond Bar Boulevard and Gid Avenue durin M eek rinds /C 1.26 LOS Ffa local and collecto
streets within residential areas ad'acent two this intersection are often utilized bv commuter traffic to b ass the
heavily congested intersection.
Residents re rt intrusion ofcut-through traffic oonn Montefino Avenue, ail Summit Drive. Rollin Knoll
Road. Mountain Laurel WWa . Silver RRa�n Drive. Meadow Glen Drive, io Drive, Armitos Place. Leyland
Drive, Summitridge Drive, Longview Drive, Gold Rush Drive and Palomino Drive. Intrusion of throw
traffic into residential neighborhoods has caused several problems, includin s eedin particularly in the
vicinitZ of schools.
d. Environmentally Sensitive Transportation Corridor
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-16
An environmentally sensitive transportation corridor is a transportation facility defined by characteristics that
cause the facility to have minimal impact to the environment and adjacent ecosystem. It also meets the general
prerequisites of being able to allow for movements of people and goods in a safe and efficient manner. These
characteristics should include but not be limited to the following:
topographic -- the corridor should blend with the natural terrain as much as possible to reduce grading
and movement of earth. Curves and contours of the natural terrain should be reflected in design of
the corridor. This goal must necessarily be balanced with providing safe corridor geometry for the
modes of travel that will use it.
hydrology -- positive drainage control will be developed as part of the corridor design to provide for
capture and transmission of runoff from the facility to an appropriate storm drainage facility. This
goal is to control foreign and potentially incompatible fluids and particles from entering the adjacent
ecosystem.
air quality •-- street sweeping/cleaning shall be programmed into maintenance operations to prevent
buildup of dirt and dust on the corridor travel surface. This goal will serve to reduce the amount of
airborne particulates which could otherwise enter the adjacent ecosystem.. Alternative fuel vehicles
and small vehicles should be encouraged rather than trucks to further improve air quality along the
corridor.
noise -- to the extent possible, modes of travel should be encouraged which have reduced sound
characteristics. In addition, natural barriers to sound created by the corridor should be developed and
implemented -to reduce sound intrusion into the adjacent ecosystem. • Consider controlled speed limits
to reduce noise impacts.'
corridor -- a corridor should be defined as a route that encourages movement of people in a manner
that encourages multimodal uses such as buses, trolleys and shuttles; discourages single occupant
vehicle trips. Movement of goods within this corridor should be evaluated in terms of not detracting
from the basic goal of maximizing movement of people in high occupancy vehicles. Restriction on
vehicle type and weight may be considered as part of the corridor. Creative traffic management
techniques should be encouraged (such as reversible lane .operation) to take best advantage of roadway
cross-section and minimize impacts to the corridor area.
biological habitat -- replant and maintain natural plant species to the extent possible along the corridor
where grading has altered the natural landscape. Similarly, provide frequent game crossings to permit
natural migratory paths to be maintained. Consider designation of the corridor for daylight use only.
aesthetic -- views from the corridor should reinforce the feeling in the traveler that they are in an
environmentally sensitive area. Similarly, views of the corridor from adjacent properties should
reinforce the feeling that the corridor is a natural part of the landscape. Corridor structures, as
necessary, should be a natural part of the terrain.
By nature of the location of the by-pass corridor in and around the SEA 15, the corridor should be
for regional traffic and should not encourage local access for adjacent development except as required
by safety and emergency access requirements. Construction activity should be limited to the right-of-
way envelope. End points of the corridor would incorporate value criteria.
An environmentally sensitive transportation corridor does not presume to specify the type of vehicles that will
utilize the facility. Rather, it should encourage and foster high occupancy, clean operation, modes that are
integrated with the corridor. Planning efforts should look to the future and anticipate technologies that will
Diamond Bdr General Plan Circulation Element
V-17
August 30,. 1994 Planning Commission Revisions
emerge and contribute to development of a corridor that meets the growing travel demands of the region and
maintains precious natural resources.
2. Transit and Paratransit Services
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.
a. Transit Services:
Public bus transit service is provided to the City of Diamond Bar by the Metropolitan
Transportation Authority and Foothill Transit.
Thfee Two fixed route transit lines serve the City of Diamond Bar: NCF,4 Foothill Transit
Route 482, MTA Route 490 Both of these transit
routes are intercity routes. NITA Foothill Routes 482 and MTA 490 originate and terminate
outside of the Diamond Bar city limits.the ffieffli"L
MTA Route 490 serves the Park -and -Ride facility north of the
Diamond Bar Boulevard/60 Freeway interchange.
b. Paratransit Services:
Demand responsive transit service is provided to the City of Diamond Bar by the jointly
sponsored Los Angeles County and City of Diamond Bar Paratransit Service. This Dial -a -
Ride service provides transportation to handicapped persons .and senior citizens- within not
only the City of Diamond Bar but portions of the surrounding area.. Transportation is limited
to' Los Angeles County, and generally operates south of Valley. Boulevard and east of 7th
Avenue, with service to medical facilities within the cities of Pomona, Walnut, Industry and
West Covina.
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 sterid_ stop, which serves the
Sunset Limited Route, is located at 156 W. Commercial St.
and is approximately nine miles northeast of Diamond Bar. The Fullerton Amtrak station, which serves the
Southwest Chief and San Diegans lines, with intermodal (bus) connections to other Amtrac lines, is located
at the corner of Santa Fe and Harbor Boulevard :and is approximately 13 miles to the southwest.
»»»» A Diamond Bar is served by a Metrolink commuter rail station has been recently implemented along the Union
Pacific Railroad at Brea Canyon Road, just north of State Route 60.
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V -g$
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,'n and Equestrian Trails
as Bic cele Rout 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.
Class H 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 provide cyclists with increased privileges, but rather, informs motorists of the cycling
route.
The City currently has two medged desigg bikeways along sid�eethe e= length of Diamond
Bar Boulevard and alon the kR&I of Golden Springs Drivefrim Cyan r�on Looa ; to the northerl ci
mit. Diamond Bar Boulevard and Golden Springs Drive west of Diamond Bar Boulevard contain Class II
li
bike lanes. The width of the bike lanes vary from 12 feet throughout most of the roadway to three feet at a
few locations 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 on 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 sed Feer, m, thou h
ot
designated by C� Resolution alon .both sides of Brea Canyon Road between Pathfinder Road and Golden
Springs Drive.
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 from 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 Golden Springs Drive (into
Rowland Heights).
There is am currentl fie o"ne
Diamond &..a psi-'-s_ie
tMils V& -fie- This t!li th�roi
the County.
C� of
SM
Diamond Bar General Plan Circulation Element
August 30, 19% Planning Commission Revisions V-19
b. Epuestrian and Hikin Trails
There is e&ecurrentl ne one official u and h�UM trails , available to the clic within
Diamond Bauer,qia.Apq Ig
failswfl! 14e This trail throu h the ci is of a more extensive trail s stem owned and mf
»�
the Coun
of
The S line Trails Extension. unoficially called the Schabarum Trail rough y the Ci 's sow and
eastern boundaries with unincoruorated sections of Los Angeles and San Bernardino counties as it ids
throwh� the hills from� Brea Cam Road to Cid Avenue. The trail originates at Schabarum Park to the
west where it interconnects w the S line Trail. The S line Trail turn interconnects with a vast
system of gggtri trails to the north andwest s readin throughout most of Los Angeles Coun To the
�.
east of. SchabarumP the t traverses Rowland Hei hts' then exits under Can on Road and the
Ora a Freewa where it anoroaches 'the MLth= S& lid of Diamond bora to the east of Brea Canyon
Road. .Ile til then travels near the edge of the Firestone.X Scout Reservationnear the northern slones
MMM
of Tonner Can on. As the tail turns northeast, it rou hl follows the ci hqundM ce inside of the ci
limits. The tail turns east • and follows the citv boundary u outside the citv lig® and again turnin
northerly+gggions of the trail are within and rtions' are outside the city. The trail terminates at Grand
Avenue, where the Sum Ridge Park Connector T will allow access to Summit Ridge PPark to the north
of Grand Avenue within Diamond Bar. There are also a series of three sVur trails whic the Coun has
1 to connect with the S line Trails Extension Trail. These three trails, collectiveiv known as the
S line Trails Connections, all h outside of the Citv of Diamond Br.
Fi ure V-4 shows hikind uestian trails in the Citv of Diamond Bauer. '
5e 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 11 miles to the east.
Diamond Bak General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-20
111111 CLASS 11
= am, CLASS 111
r1gurC Y--,;,
DIAMOND BAR EXISTING DESIGNATED
BICYCLE ROUTES
Diamond Bar General Plan Circulation Element
V-21
August 30, 1994 Pning Commission Revisions
Planning
6. Goods Movement
Goods movement within the City of Diamond Bar occurs 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 Orange5�7 /Pomona L601 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 and the
northbound Orange Freeway ramps to the north, and Sunset Crossing Road 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 Golden Springs Drive between
Lemon Avenue and Brea Canyon Road, along both Brea Canyon Road and Lemon Avenue north of Golden
Springs Drive, 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.
The General Plan Designated Truck Routes are illustrated in Figure V-5.
The following significant issues concerning circulation are not necessarily listed in order of priority.
1. 'Future Development in Diamond Bar
The Diamond Bar General Plan provides for an additional 4-.-M 700 dwelling units, as well as additional
commercial office and business park uses. The iffels of develepmem whieh,wet4d be permissible under the
uses.proposed General Plan weeW reffWt in appre*imately 1,900 addifiefW dweWmg units, 918,GN square feet e
N7D»� ISSUE ANALYSIS: The City needs policies to address impacts to all streets in Diamond Bar and to
maintain or improve roadway level -of -service standards.
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 be impacted by future growth and development in surrounding communities and the region.
Increased traffic in the region will impact Diamond Bar through increased traffic volumes along the regional
transportation facilities including Routes 57 and 60 and Grand Avenue.
ISSUE ANALYSIS. The City needs policies to address impacts to all streets in Diamond Bar and
to maintain or improve roadway level -of -service standards.
Diamond -Bar General flan Circulation Element
August 30, 1994 Planning Commission Revisions V"22
rigure v-4
H i K r n! G AK D EQUESTRIAN TRAILS
Diamond Bar General,Plan Circulation Element
V-23August 30,19% Planning CommiWm RvAskm
HOT.
fTO SCa6S
/ SLE STRATEGIES 1.6.5 OF
TIS LAMD USE ELEMENT 1
AMD 1.1.4 OFTn
CIRCULATSOM ELEMLNP \
SOURCE: DIS &sodatea GENERAL. PLAN
Figure V -
Desi nated Truck Routes
Diamond Bar General Place Circulation E ement
V-24Aug" 30, 19% Planning CoQunissmi RvAsiona
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 by the year 2010. Examples are as follows:
Diamond Bar Boulevard - Average daily traffic volumes along Diamond Bar Boulevard immediately south of
Grand Avenue are projected to be double the desirable volumes for 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.
Golden Springs Drive - Year 2010 traffic volumes along Golden Springs Drive west of Brea Canyon Road
are projected to exceed the desirable maximum volumes for this four -lane roadway. From east of Lemon
Avenue to the City of Diamond Bar boundary, Golden Springs Drive is forecast to carry traffic at or slightly
below the recommended carrying capacity for a four -lane roadway.
The portion of Golden Springs Drive 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 desirable maximum volumes for 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 Golden Springs Drive 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 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
Avenueare 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. However, the location of an alternative travel corridor must consider its
potential environmental and growth -inducing impacts. Under these circumstances, it will be prudent for the
City to consider the option of a by-pass corridor. Studies of such a facility indicate that should forecasted
development and freeway improvements occur, a by-pass corridor will provide substantial relief to the key
streets in Diamond Bar. Therefore, it will be the policy of the City to:
not wait until need for the by-pass corridor is demonstrated, but proactively monitor signs
for the need so that timely planning and environmental steps can be taken
Diamond Bar General Plan Circulation Element
V-25
August 30, 1994 Planning Commission Revisions'
M
® explore regional options for transportation improvements prior to initiating development of
a regional by-pass corridor
® seek cooperation .of adjoining jurisdictions in managing growth and assigning responsibility
for infrastructure improvements to support that growth
® establish criteria under which a by-pass corridor would be considered, designed, constructed,
and utilized.
ISSUE ANALYSIS: There is a need to consider an"O';?... gtf"t?Rt,t#:
M?:?:r:•?:':{4' {\ J:• q:{gi.:4}}$:ii .. .....{:4: '•%•.r{5C{i%i:+i•}i:.4:•}ri•%{:}%{:fi:•.�4}rti;v.•: }: •::.:., .'•'%{
c A This matter is a regional issue and involves multiple
jurisdictions which should be included. There needs to be a proper
justification of regional benefit for a road.
5. Maintabi =* g 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 5.7/60.
ISSUE ANALYSIS. Measures to enhance Grand Avenue while maintaining. its current
tra•,lc-carrying capacity within the eaasting .right-of-way, could include.-
Optimize
nclude.Optimize signal coordination
® Reconstruction to, improve interchange at Route 57/60 .
Provide bus turnouts out of travel lanes,"'"' � •
Provide l` at Grand Avenue and
Diamond .Bar Boulevard I� �" :' � �\1ykpY{h►:yh�1{y� (,�,�/�t�p.�}q� '.1
fMi.Ki}'•7�1!77.Oi71�:LTNN'.+.MMIiri1 Aly
. k{w}:ii}}}:•YiGW:4}i}}}}}}}Y:L%06i0i0MC��t•}.. G �r�OGFY•
6. Increase the of Stale Routes 5'7 and 60 for i
Traffic gJse'
It is desirable to reduce the use of Diamond Bar Boulevard' by through traffic.
ISSUE ANALYSIS. One of the most feasible approaches the City can take to reduce through
traffic on Diamond Bar Boulevard is to work with Caltrans to improve
conditions on State Route 57 and 60. Possible improvements include.
® Upgrade the SR 57/60 interchange to eliminate undue at -grade conflicts and weaving
maneuvers.
e Provide HOV lanes on both SR -57 and SR -60.
® Provide truck climbing lanes where appropriate.
Diamo®d Isar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-26
Construct auxiliary lanes between key interchanges.
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ISSUE ANALYSIS:
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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/fmm a residential area of northwest
Diamond Har. 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 and a waste -to -rail materials recovery facility 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.
t�t•t�.
ISSUE ANALYSIS: The City should implement <.•omeasures to maintain the integrity of
residential neighborhoods.
D. GOALS, OBJECTIVES AND STRATEGIES
"7T IS THE OVERALL GOAL OF THE PLAN TO PROVIDE A SAFE, ADEQUATE
AND ENVIRONMENTALLY SENSITIVE TRANSPORTATION SYSTEM TO MEET 771E
CIRcum TTON NEEDS OF THE CITIZENS OF DIAMOND BAR.,v
GOAL 1 "Enhance the environment of the City's street network. Work toward 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."
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-27
Objective, 1.1 Participate in local and regional transportation related planning and decision-making.
Strategies:
1.1.1 Preclude the connection of roadways from adjacent jurisdictions into the City unless
demonstrable benefits to Diamond Bar residents and businesses are indicated.
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
Proactively work with adjacent jurisdictions'
1.1.5 Continue to seek support for Regional State Transportation Improvement Program
(RSTIP) projects as proposed by the City of Diamond Bar such as.-
(a)
s:
(a) Encourage modification of the SR57/SR60 interchange;
(b) Tharmask construction of HOV lanes on SR60, from SR57 north to San
Berardino County;
(c)a construction of HOV lanes on SR60,. from Brea Canyon Road
to SR57 north;
(d) MW Awm construction of HOV lanes on SR57, from Orange County to
SR60; and
(e)
1.1.6 Encourage Orange and San Bernardino Counties to fund and construct an environmentally
sensitive transportation corridor roadway through Soquel Canyon and or Carbon Canyon.
1.1.7 The CU should encoura a the efforts of oto iurisdictions and a eacies to co lets the
work on other circulation vroiects outside of Diamond Bar that will vositivelv effect
Diamond Bar's traffic conditions. These to sets include:
comaletioa of SR -30
b� U e off SR -71 to freeway standards
The construction of Soauel Road extension to SR 57
larsae Development of additional lanes on SR60 easterly of the City.
1.1.8 Coordinate the use of land use policies from neighboring communities and incorporate
all existing traffic data including improvements and proposal for the regional circulation
system.
Diamond Bar General plan Circulation Element
August 30, 19% Planning Commission Revisions V-28.
Objective 1.2
Strategies:
Balance the need for optimum trafflc flow on City arterials within economic realities,
environmental, and aesthetic considerations.
1.2.1 Prepare programs for traffic control measures including, but not limited to,
additional stop signs at problem intersections, timing of stop lights, and regulation
of speed limits.
1.2.2 Maintain flexibility in the cross sections and configuration of streets within
topographically rugged or environmentally sensitive areas.
1.2.3 Pursue other traffic measures to enhance circulation and transient traffic movements.
Objective 1.3. Maintain the integrity of residential neighborhoods. Discourage through trafflc.
Strategies:
1.3.1 Prevent the creation of new roadway connections which adversely impact existing
neighborhoods.
1.3.2 Implement aeigrheedtraffic control programs "
M to reduce and divert
through traffic.
1.3.3 Design new developments and their access points in such a way that the capacity of
local residential streets is not exceeded.
1.3.4 Minimize impacts of roadways serving the Diamond Ranch high school site 'on
surrounding residential neighborhoods.
L-3.5 The C� shyld imnl�� s measures to maintain the igl2glia of the Sunset®
Crossin Load residenti = at the w ci li®ts bX cul-deSuns t
Crossing Loadand aand retai ng'n the cul-de-sacin& of Washin n and Beaverhead
S
GOAL 2 "Provide a balanced transportation system for the safe and efficient movement of
people, goods and services through the City."
Objective 2.1 Maximize the use of alternative transportation modes within and through the Coy to decrease
reliance on single passenger automobiles.
Strategies:
-2.1.1 Maximize the availability and use of public transit service.
Diamond Bar General Plan Circulation Element
August 30, 1994 P18nning Commission Revisions V-29
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 intermodal transportation facility at the prepesed Metrolink Station near Brea
Canyon Road and State Route 60.
2.1.5 Encourage participation in carpools through the use of City publications and public
displays.
2.1.6 Coordinate to the extent possible with neighboring cities in the development of a
Transportation Demand Management (TDM) plan.
2.1.7 Work with Caltrans to build new park-and-ride sites and expand existing park-and-
ride facilities.
.:. y y
2.1.8 - r.. --.- t: f �o the system of bic cls mutes
connecting residential areas to maior community attractions.
2.1.9 Pursue a cooperative joint agencies program to provide access for Diamond Bar
residents to a regional light rail system.
2.1.10 Lobby Caltrans to provide HOV lanes on local freeways. -
2.1.11 Explore the feasibility of interconnected public equestrian trails.
2.1.12 Ex lore the feasibilitv of interconnected Dublic hildne trails.
Objective 2.2 Maximize connection of all areas within. the City throughthe circulation system
Strategy:
2.2.1 Work to ensure that any. new development is provided with adequate access from
within the City of Diamond Bar.
2.2.2 Through the roadway system, ensure that new development within the Tres
Hermans Ranch property is integrated into the community of Diamond Bar.
GOAL 3 "Maintain an Adequate Level of Service on Area Roadways."
Objective 3.1 Improve the safety and eftiency of existing transportation facilities.
Strategies:
Diamond Bar General Plan Circulation Element
August 30, 1994 Planning Commission Revisions V-30
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.
(See level of service descriptions in Table V-1)
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 have peak hour traffic service levels worse
than "D". Where feasible, these improvements should be made within existing
right-of-way.
3.1.4 Develep !p0pp pavement management system and maintenance program for all
public roadways throughout the City.
3.1.5 Develop a signal system management system and maintenance program for all traffic
signals throughout the City.
3.1.6 Consider all opportunities to expand and maintain pedestrian access routes
throughout the City.
3.1.7 Synchronize signals on Grand A-veme"re'd9ft
the City
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yy.77}{{`G{:: ` « ,", " and adjacent communities.
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Objective 3.2 Explore all available opportunities and mechanisms, forfunding transportation improvements:
Strategy:
3.2.1 All new development shall be • required to provide mitigation measures. Such
measures could include improvements. -or traffic impact fees.
3.2.2 Solicit State and Federal funds to improve area freeways to eliminate use of local
streets as part of the freeway system.
3.2.3 Consider implementing a traffic impact fee system.
3.2.4 Develop a regional financing mechanism(s) to assess new development for the cost
of mitigating traffic impacts.
3,2.5 Consider the use of a "toll road" to finance and maintain the environmentally
sensitive transportation corridor.
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GOAL, 4 "Provide or Regulate the Provision of the Supply of Parking to Meet the Needs
for Both Residents and Commercial Businesses."
Diamond Bar General Plan Circulation Element
V-31
August 30, 1994 Planning Commission Revisions
Objective 4.1 Ensure compliance with the Southern California Air Quality Management District Regulation
15 trip reduction requirements.
Strategies:
4.1.1 Regulate the provision of preferential parking for high occupancy vehicles wherever
possible.
4.1.2 Consider 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 of Diamond Bar.
Strategy:
4.2.1 Use existing parking demand data sources to update City Code requirements
pertaining to parking, particularly the provision of sufficient parking for land uses
generating a high demand for, parking.
4.2.2 Encourage school districts to improve parking and loading facilities for public
schools to minimize the impact on the circulation system.
Diamond Bar General Flan circulation Element
V-32
August 30, 1994 planning Commission Revisions
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