HomeMy WebLinkAboutResolution 2014-007 RESOLUTION NO. 2014-007
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
ATASCADERO, CALIFORNIA, APPROVING AN ADDENDUM TO THE
PREVIOUSLY-CERTIFIED ENVIRONMENTAL IMPACT REPORT FOR
THE 3F MEADOWS PROJECT AND DETERMINE THAT SAID
ADDENDUM, TOGETHER WITH THE PREVIOUSLY-CERTIFIED
ENVIRONMENTAL IMPACT REPORT, SERVES AS THE
APPROPRIATE ENVIRONMENTAL DOCUMENTATION FOR THE
PROPOSED AMENDMENTS TO THE PLANNED DEVELOPMENT 11
ZONING CODE SECTION 9-3.656
Oak Ridge Estates / 3F Meadows
(Castlerock Development / KM Holdings)
The City Council hereby finds and declares as follows:
WHEREAS, an application has been received from K&M Holdings, 445 Green Gate
Road, San Luis Obispo, California 93401, (Applicant), to consider an amendment to Section 9-
3.656 (PD-11) of the Atascadero Zoning Ordinance pertaining to the off-site road improvement
requirements for the 3-F Meadows/Oak Ridge Estates housing development; and,
WHEREAS, in conjunction with the approval of the 3F Meadows development project
in February 1995, which entailed a lot line adjustment (LLA 94005), a zone change (ZC 94-001)
which created the Planned Development Overlay Zone No. 11 ("PD-11"), and a colony road
abandonment (RA 94-001) (herein referred to as the "Project"), the City Council of the City of
Atascadero, on February 28, 1995, certified the 3F Meadows Final Environmental Impact Report
(State Clearinghouse No. 94061014) (herein referred to as the "3F Meadows EIR"), adopted a
Statement of Findings and Facts and adopted a Mitigation Monitoring Program in compliance
with the California Environmental Quality Act (herein referred to as "CEQA"); and
WHEREAS, in an effort to design and facilitate the construction of the off-site road
improvements required by the 3F Meadows EIR and PD-11 for the Project, the original and
current Project developers have met and conferred with the City and the California Department
of Transportation ("Caltrans") off and on since the City approved the Project, and based on those
efforts Caltrans has recommended, and the City is considering modifications to several of the
PD-11 conditions requiring the construction of various off-site road improvements; and
WHEREAS, prior to holding any hearings and bringing any proposed modifications to
PD-11 before the Planning Commission and City Council, City staff retained an independent
traffic engineer, Whitlock & Weinberger Transportation, Inc. ("W-Trans"), to study and analyze
the potential impacts associated with the Project at the intersection of State Route 41 and Los
em
City of Atascadero
Resolution No. 2014-007
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Altos Road and the intersection of State Route 41 and the access driveway to Project lots 109-
112; and
r..
WHEREAS, W-Trans provided the City with a detailed report and traffic evaluation
dated February 4, 2014 which provided substantial analysis and evidence in support of
conclusions that: (1) only two collisions were reported at SR41/Los Altos Road for the five-year
study period which is less than expected for similar facilities; (2) under existing Conditions, the
intersection of SR41/Los Altos Road operates at acceptable levels of service during both the a.m.
and p.m. peak hours, and that continued acceptable operation is expected upon adding Project-
generated traffic; (3) SR41/Los Altos Road would continue to operate at acceptable levels of
service during both the a.m. and p.m. peak hours under Year 2035 Future conditions with and
without the addition of Project-generated traffic; (4) because the southbound Los Altos Road
approach to SR41 would operate at an acceptable Level of Service C with the additional 101
residential units associated with the Project and other undeveloped lots in the traffic shed, no
additional improvements such as a left-turn refuge/acceleration lane are warranted to address
intersection level of service; (5) at SR41/Los Altos Road, a westbound right-turn taper is
warranted under the Existing plus Project and Future plus Project conditions; (6) Under Future
plus Project conditions, a right-turn lane would be warranted on SR 41 at Los Altos Road if 112
additional units were developed beyond the 101 residential units associated with the Project and
other undeveloped lots in the traffic shed; and (7) at SR 41 and the driveway access to lots 109-
112, future traffic volumes and build-out of the lots do not warrant the need for either a left-turn
lane, right-turn lane, right-turn taper or left-turn refuge/acceleration lane (hereinafter "W-Trans
Report"); and,
WHEREAS, based on the W-Trans Report City staff prepared draft language amending
several of the PD-11 conditions requiring the construction of various off-site road improvements
and provided those draft PD-11 amendments and the W-Trans Report to Caltrans and has met
and conferred with Caltrans to ensure that Caltrans had no objections to City staff s proposed
amendments to PD-11; and
WHEREAS, in its letter dated March 11, 2014, Caltrans indicated that it reviewed all of
the information provided by the City, that it has no objections to the City's proposed revisions to
PD-I I's off-site road improvement conditions and that Caltrans looks forward to cooperating
with the City and Castlerock in constructing the modified off-site road improvements; and,
WHEREAS, to assess potential environmental impacts associated with the proposed
modifications to PD-11 relative to the 3F Meadows EIR, City staff prepared an addendum to the
3F Meadows EIR pursuant to CEQA (herein referred to as "Addendum"); and
WHEREAS, the Addendum concluded that the proposed changes to PD-11 would not
result in any new or substantially more severe impacts than disclosed in the 3F Meadows EIR;
and
WHEREAS, Section 21000, et seq., of the Public Recourses Code and Section 15000, et
seq., of Title 14 of the California Code of Regulations (herein referred to as the "CEQA
am Guidelines"), which govern the preparation, content, and processing of environmental impact
City of Atascadero
Resolution No. 2014-007
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reports, have been fully implemented in the preparation of the 3F Meadows EIR and Addendum;
and
WHEREAS, pursuant to California State Law and the City of Atascadero Municipal
Code, public hearing notices were mailed to all property owners within a one thousand (1,000)
foot radius of the Project site and a public hearing notice was published 10 days prior to the first
public hearing in the Atascadero News; and
WHEREAS, the Atascadero Planning Commission held a public hearing on April 1,
2014, where they considered testimony from staff, the applicant and the public prior to
recommending approval of the proposed Addendum to the 3-F Meadows EIR; and
WHEREAS, the Atascadero City Council held a public hearing on April 22, 2014, where
they considered testimony from staff, the applicant, the public and the Planning Commission's
recommendation prior to making a decision on the proposed Addendum to the 3-F Meadows
EIR; and
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of
Atascadero, based upon a thorough review of the proposed amendments to PD-11, the
Addendum and the 3F Meadows EIR, and the evidence received to date, makes the following
findings, determinations and recommendations with respect to the Addendum to the 3F
Meadows EIR:
1. The City Council has independently reviewed, analyzed and considered the 3F
Meadows EIR and Addendum and all written documentation, public comments, and Planning
Commission recommendation prior to making a decision on the proposed modifications to PD-
11; and
2. The Addendum to the 3F Meadows EIR was prepared and reviewed in
compliance with the provisions of CEQA and the CEQA Guidelines; and
3. The information and analysis contained in the Addendum, which is attached
hereto as Exhibit A, reflects the City's independent judgment as to the environmental
consequences of the proposed modifications to PD-11; and
4. That, based upon the evidence submitted and as demonstrated by the analysis
included in the Addendum, none of the conditions described in Sections 15162 or 15163
of the CEQA Guidelines calling for the preparation of a subsequent or supplemental EIR or
negative declaration have occurred; specifically:
a. There have not been any substantial changes in the Project that require major
revisions of the 3F Meadows EIR because of new significant environmental effects or a
substantial increase in the severity of previously identified significant effects;
b. There have not been any substantial changes with respect to the circumstances
em under which the Project is undertaken that require major revisions of the 3F Meadows EIR due
City of Atascadero
Resolution No. 2014-007
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to the involvement of new significant environmental effects or a substantial increase in the
severity of previously identified significant effects; and
c. There is no new information of substantial importance, which was not known
and could not have been known with the exercise of reasonable diligence at the time the 3F
Meadows EIR was certified, that shows any of the following: (a) the Project will have one or
more significant effects not discussed in the 3F Meadows EIR; (b) significant effects previously
examined will be substantially more severe than shown in the 3F Meadows EIR; (c) mitigation
measures or alternatives previously found not to be feasible would in fact be feasible and would
substantially reduce one or more significant effects of the Project, but the project proponents
decline to adopt the mitigation measure or alternative; or (d) mitigation measures or alternatives
which are considerably different from those analyzed in the 3F Meadows EIR would
substantially reduce one or more significant effects on the environment, but the Project
proponents decline to adopt the mitigation measure or alternative.
BE IT FURTHER RESOLVED that, pursuant to the above findings, the City Council
determines that the previously-certified 3F Meadows EIR, together with the Addendum, are
adequate to serve as the required environmental documentation for the proposed amendments to
PD-11 and hereby approve and adopt the Addendum as attached as Exhibit A; and
BE IT FURTHER RESOLVED that the documents and other materials, including
without limitation staff reports, memoranda, maps, letters and minutes of all relevant meetings,
which constitute the administrative record of proceedings upon which the City Council's
am resolution is based are located at the City of Atascadero, City Clerk, 6500 Palma Avenue,
Atascadero, CA 93422. The custodian of records is the City Clerk.
am
City of Atascadero
Resolution No.2014-007
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On motion by Council Member Kelley and seconded by Council Member Fonzi, the
foregoing Resolution is hereby adopted on this 22nd day of April, 2014, in its entirety on the
following roll call vote:
AYES: Council Members Fonzi, Kelley, Moreno, Sturtevant and Mayor O'Malley
NOES: None
ABSENT: None
ADOPTED: April 22, 2014
TY OF ATASCADERO
By:
ToMalley, yor
ATTEST:
Marcia McClure Torgerson, C.M.
City Clerk
APPRQYT,D AS ORM:
nan A. Pierik, City Attorney
wrrr
City of Atascadero
Resolution No. 2014-007
Page 6 of 6
EXHIBIT A: Addendum to 3F Meadows Environmental Impact Report
Due to the length of the exhibit, it is not included as an attachment. However, it may be
read in its entirety in the Office of the City Clerk.
�r.
RESO No. 2014-007 Exhibit A
4/22/14 City Council Meeting _
Oak Ridge Estates/3F Meadows PD -11 Amend
EXHIBIT A: Addendum to 3F Meadows Environmental Impact Report
City of Atascadero
Addendum to 3F MEADOWS
Environmental Impact Report
March 21, 2014
Prepared by: City of Atascadero
Planning Department
6500 Palma Avenue
Ataseadero, CA 93422
I. INTRODUCTION
This memorandum, prepared pursuant to the California Environmental Quality Act ("CEQA"), is
an Addendum to the certified 3F Meadows Final Environmental Impact Report, State
Clearinghouse Number 94061014 ("3F Meadows EIR"). The 3F Meadows EIR analyzed the
potential impacts of the 3F Meadows Ranch development project, which entailed a lot line
adjustment (LLA 94005), a zone change (ZC 94-001) which created the Planned Development
Overlay Zone No. 11 ("PD -11 "), and a colony road abandonment (RA 94-001) to provide for a
comprehensive reconfiguration and development of the existing 115 -lot colony residential
subdivision into 111 residential parcels, a water tank parcel and three open space lots on an 800+
acre site in the City of Atascadero to address access issues, create larger parcels of open space
and relocate and develop residential lots into more compact areas of the site to minimize
environmental impacts ("3F Meadows Ranch Project" or "Project"). The 3F Meadows EIR
identified mitigation measures to reduce all of the potentially significant environmental impacts
associated with the 3F Meadows Ranch Project to levels of insignificance, and the City certified
the 3F Meadows EIR and approved the 3F Meadows Ranch Project in February 1995.
The purpose of this Addendum is to evaluate proposed minor changes to some of the off-site
traffic mitigation measures identified in the original 3F Meadows EIR, which were incorporated
into the PD -11 zoning district' developed for and applied as conditions of approval to the 3F
Meadows Ranch Project. Other than the minor changes to PD -11 discussed and analyzed herein,
no other changes or discretionary approvals are proposed for or to the number, location or
development of any residential lots, roads or any other aspects of the 3F Meadows Ranch
Project. As explained below, it is necessary for the City to modify some of the traffic mitigation
measures to: (i) avoid creating new, more severe significant adverse environmental impacts; (ii)
ensure road improvements are constructed consistent with and meet current Caltrans
recommendations and standards; and (iii) delete those which are not necessary to address any
potentially significant traffic impacts associated with the Project. As demonstrated in this
Addendum, no further environmental review beyond this Addendum is necessary due to the fact
that the proposed changes to the PD -11 will not result in any new or more severe environmental
impacts.
II. BACKGROUND
While the City certified the 3F Meadows EIR and approved the 3F Meadows Ranch Project in
1995, residential construction on the Project site did not begin in earnest until after the Project
was acquired by Castlerock Development ("Castlerock") in 2003. The original project
applicant/developer was the Davis Family Trust. Castlerock continues to own and develop the
Project2 today. To date, Castlerock has applied for residential building permits for 31 of the 34
' PD -11 is located in the City of Atascadero Municipal Code, Title 9 (Planning And Zoning), Chapter 3 (Zoning
Districts), Article 28 (PD (Planned Development) Overlay Zone), Section 9-3.656 (Establishment of Planned
Development Overlay Zone No. 11). The Municipal Code is available online at: http://gcode.us/codes/atascadero/
2 The Project is now commonly referred to as Oak Ridge Estates, but for purposes of this Addendum will continue to
be referred to as the "3F Meadows Ranch Project" or just "Project" for consistency.
Phase 1 lots.3 In response to those 31 applications the City has issued 26 building permits and
construction has been completed and the permits finaled on 25 of them. The 3F Meadows/Oak
Ridge Estates Public Improvement Map attached hereto as Exhibit A depicts the Project site, the
four (4) phases of planned development and the current status of the development of the
residential lots in phase 1.
As a result of the economic downturn, however, construction on the Project has been very
limited since 2006. The City issued the first building permit in early 2004 and the last building
permit in the summer of 2007. Then, in March of 2010, the City informed Castlerock that it
could not issue any additional building permits for new residential dwellings until certain off-site
road improvements required by PD -11 were constructed. All of the off-site road improvements
the City demanded be constructed before it would issue any further building permits involved
road improvements at or near the intersection of State Route 41 and Los Altos Road ("SR 41/Los
Altos"). These improvements stemmed from comments the California Department of
Transportation ("Caltrans") provided on the original 3F Meadows EIR. Indeed, the 3F Meadows
EIR included a "Traffic Safety" section which established mitigation measures to address various
potential traffic safety impacts, including potential traffic safety impacts at SR 41/Los Altos.4
Most notably, Caltrans requested and the final 3F Meadows EIR required a new right -turn lane
for westbound traffic on State Route 41 approaching SR 41/Los Altos, as well as a new "refuge
lane" for eastbound traffic entering SR 41 from Los Altos Road. As noted above, the City then
incorporated those mitigation measures into PD -11 and applied them as conditions of approval to
the 3F Meadows Ranch Project. PD -11's conditions of approval also included these measures as
required road improvements at a second location, the intersection of SR 41 and the access
driveway to Project lots 109-112.
The fact that not all of the off-site road improvements required by PD -11 have been constructed
is not the result of a lack of effort on the part of the City or the former and current Project
developers. Indeed, the original Project applicant/developer began discussions with Caltrans
soon after the City approved the Project to discuss designs for the off-site road improvements
required by PD -11. (See March 1995 correspondence between Engineering Development
Associates and Caltrans attached hereto as Exhibit B.) After acquiring the Project, Castlerock
continued those discussions with Caltrans regarding the scope of the necessary off-site road
improvements and even submitted proposed SR41/Los Altos improvement plans as part of a
preliminary encroachment permit application review process in 2005. In response, Caltrans
indicated that it had changed its position with respect to the right -turn lane it previously
requested for westbound traffic on State Route 41 approaching Los Altos road. In the June 15,
2005 letter from Caltrans' permit Engineer attached hereto as Exhibit C, Caltrans indicated that
it would no longer require or accept the right -turn channelization because constructing a new
right -turn lane at that location would require extensive realignment of an adjacent creek that
The 3 remaining Phase 1 lots include two residential parcels (lots 9 and 80) and one AMWC water tank parcel (lot
°The 3F Meadows EIR limited its analysis of transportation impacts to generalized traffic safety impacts because no
formal peak hour trip review or intersection level of service analyses were prepared as is typical today. In other
words, the 3F Meadows EIR did not identify whether vehicle delay or queuing would actually increase to
unacceptable levels at any off-site intersections or roadway segments as a result of the addition of Project -related
traffic and thus limited its identification of potential impacts and imposition of mitigation measures to address
general traffic safety concerns associated with average daily traffic estimates.
would create additional adverse environmental impacts and right of way constraints.
Understandably, and in an effort to avoid any such new, unintended environmental impacts,
Caltrans indicated that the SR41/Los Altos intersection should instead be improved to meet the
requirements of the "standard public road approach intersection," which would require a less
intrusive right -turn taper (limited extension of paved shoulder) instead of a new, full right -turn
lane.' In 2010 Caltrans confirmed that its position had not changed, stating that so long as no
changes were approved to increase the number of vehicle trips generated by the Project
upgrading the SR41/Los Altos intersection to the standard road approach intersection as shown
in Figure 405.7 of the Caltrans Highway Design Manual would provide a satisfactory design to
accommodate vehicles turning right onto Los Altos Road. (See November 9, 2010 Caltrans letter
attached hereto as Exhibit D.)
Before taking any action to modify the off-site road improvement requirements contained in PD -
11 to make them consistent with Caltrans' updated position, City staff retained an independent
traffic engineer, Whitlock & Weinberger Transportation, Inc. ("W -Trans"), to analyze potential
traffic impacts based on current data. Specifically, the City asked W -Trans to determine whether
eliminating PD -I I's right -turn lane requirement at SR41/Los Altos would result in a new or
more severe traffic impact as well as to analyze whether the Project -generated vehicle trips might
result in any other potential traffic impacts at either the intersection of State Route 41 and Los
Altos Road or the intersection of State Route 41 and the access driveway to Project lots 109-112.
W -Trans collected traffic volume count data on August 28, 2013, and presented its analysis and
conservative evaluation of the impacts associated with Project -related traffic on those two
intersections under existing, existing plus project, future and future plus project conditions in a
report to the City dated February 4, 2014. (W -Trans' February 4, 2014 report is attached hereto
as Exhibit E.) W -Trans' analysis was conservative because it not only analyzed the impact of
the vehicle trips associated with the Project's 82 undeveloped lots, but also included traffic from
the 4 secondary units anticipated to be built within the Project area in the next 20 years and from
the 15 undeveloped lots that lie outside the Project site but within the same traffic shed.
Based on W -Trans' report, City staff prepared proposed modifications to PD -11 to account for
the current data and analysis of the Project's potential traffic impacts at the intersections of State
Route 41 and Los Altos Road and the intersection of State Route 41 and the access driveway to
Project lots 109-112 and once again consulted with Caltrans. In a letter dated March 11, 2014,
Caltrans indicated that it did not have any objections to the City's proposed modifications to the
off-site road improvement requirements contained in PD -11 and indicated its desire to cooperate
with the City and Castlerock in constructing the modified off-site road improvements. (Caltrans'
March 11, 2014 letter is attached hereto as Exhibit F.)
III. PROPOSED CHANGES TO PD -11
A copy of the existing text of Municipal Code section 9-3.656 containing the PD -11 overlay
zone regulations is attached hereto as Exhibit G, which clearly shows all of the proposed
changes/modified text developed by City staff and approved by Caltrans in strikeout (deletions)
and underline (additions) format. Specifically, the changes are limited to the off-site road
5 See Chapter 405.7 Public Road Intersections and related Figure 405.7 from Caltrans' Highway Design Manual
found here hqp://www dot ca aov/hd/op d/p hdm/pdf/enalish/chp0400 pdf
improvements managed by the City's Engineering Division in subsection (c)(3) and the key
aspects of the proposed changes are summarized as follows:
9-3.656(c)(3)(v) Original condition requiring new left- turn lanes for eastbound
traffic on SR 41 at intersections with Los Altos Road and driveway
serving lots 109-112.
Modification proposes: (1) minor text amendments to
acknowledge and address the fact that one of the required left -turn
lanes has already been constructed but may need further
refinements to comply with current Caltrans standards; and (2)
revised timing requirements for construction of new left -turn lane
on SR 41 to account for the fact that the left -turn lane from
eastbound SR 41 already exists for eastbound traffic entering Los
Altos Road and to ensure no building permits are issued for Project
lots 109-112 before the new left -turn lane improvement is
constructed for eastbound SR41 traffic entering the driveway
access for Project lots 109-112, if required by Caltrans.
9-3.656(c)(3)(vi) Original condition requiring vehicle refuge lanes
Modification proposes to: (1) delete the requirement to construct
vehicle refuge lanes; (2) create a new condition requiring that the
existing residential driveway approach to SR 41 serving lots 109-
112 be improved to current Caltrans Design Standards; and (3)
create timing requirement for construction of improvements to
bring driveway approach to SR 41 serving lots 109-112 to current
Caltrans Design Standards to ensure no building permits are issued
for lots 109-112 before this improvement is constructed.
9-3.656(c)(3)(vii) Original condition requiring sight distance improvements
Modification proposes: (1) enhanced sight distance clearance to
ensure compliance with most current Caltrans standards; and (2)
revised timing requirements for interim/final sight distance
improvements.
9-3.656(c)(3)(viii) Original condition requiring advisory/warning signage on SR 41
Modification proposes: (1) enhanced advisory/warning signage to
ensure compliance with most current Caltrans standards; and (2)
revised timing requirements for interim/final advisory/warning
signage.
9-3.656(c)(3)(ix) Original condition requiring right -turn lanes for westbound traffic
on SR 41 at intersections with Los Altos Road and driveway
serving Project lots 109-112.
Modification proposes: (1) right -turn taper (in lieu of full
dedicated right -turn lane) on SR 41 for westbound traffic entering
Los Altos Road; (2) deletion of right -turn lane requirement on SR
41 for westbound traffic entering driveway serving Project lots
109-112; and (3) revised timing requirement for construction of
right -turn taper to ensure improvement is constructed well before it
is warranted.
As discussed and demonstrated below, the proposed changes to PD -11 are minor in nature in that
they do not result in any new significant adverse environmental impacts or an increase in the
severity of impacts already identified in the 3F Meadows EIR. Rather, the modifications avoid
the creation of a new significant adverse impact and generally provide updates to modernize and
ensure the required improvements are built to current Caltrans Design Standards.
IV. ENVIRONMENTAL ASSESSMENT
A. Applicable Legal Standards
This Addendum is prepared pursuant to CEQA Guidelines section 15164, which states: "The
lead agency or a responsible agency shall prepare an addendum to a previously certified EIR if
some changes or additions are necessary, but none of the conditions described in Section 15162
calling for preparation of a subsequent EIR have occurred." CEQA Guidelines section 15162(a)
echoes and implements the CEQA statutory provision contained in Public Resources Code
section 21166 in that it specifies that no subsequent EIR shall be prepared for a project unless the
lead agency determines:
(1) Substantial changes are proposed in the project which will require major revisions
of the previous EIR or negative declaration due to the involvement of new
significant environmental effects or a substantial increase in the severity of
previously identified significant effects;
(2) Substantial changes occur with respect to the circumstances under which the
project is undertaken which will require major revisions of the previous EIR or
negative declaration due to the involvement of new significant environmental
effects or a substantial increase in the severity of previously identified significant
effects; or
(3) New information of substantial importance, which was not known and could not
have been known with the exercise of reasonable diligence at the time the
previous EIR was certified as complete or the negative declaration was adopted,
shows any of the following:
(A) The project will have one or more significant effects not discussed in the
previous EIR or negative declaration;
(B) Significant effects previously examined will be substantially more severe
than shown in the previous EIR;
(C) Mitigation measures or alternatives previously found not to be feasible
would in fact be feasible and would substantially reduce one or more
significant effects of the project, but the project proponents decline to
adopt the mitigation measure or alternative; or
(D) Mitigation measures or alternatives which are considerably different from
those analyzed in the previous EIR would substantially reduce one or
more significant effects on the environment, but the project proponents
decline to adopt the mitigation measure or alternative.
Pursuant to CEQA Guidelines Section 15164(e), this Addendum details: (1) proposed changes
to modify some and delete other provisions in the PD -11; (2) the less -than -significant
environmental impacts associated with the proposed changes in the PD -11; and (3) the reasons
and evidentiary support for the City's conclusions that the changes to the PD -11 do not meet the
conditions described in Section 15162 calling for preparation of a subsequent EIR.
Further guidance is provided by caselaw, particularly as referenced under CEQA Guidelines
Section 15162 which refers to Bowman v. Petaluma (1986) 185 Ca1.App.3d 1065, which
distinguished requirements for a subsequent EIR from the threshold required for initial EIR
preparation, stating:
Whereas section 21151 requires an EIR if the project `may have a
significant effect on the environment,' section 21166 provides that
an agency may not require preparation of an EIR unless
`substantial changes' in the project or its circumstances will
require `major revisions' to the EIR. The two statutes serve quite
different purposes and have correspondingly different effects. The
question addressed by section 21151 is whether any environmental
review is warranted. CEQA procedures reflect a preference for
resolving doubts in favor of such review. [citations omitted]. In
the present case, however, section 21166 comes into play precisely
because in-depth review has already occurred, the time for
challenging the sufficiency of the original EIR has long since
expired and the question is whether circumstances have changed
enough to justify repeating a substantial portion of the process.
Thus, while section 21151 is intended to create a `low threshold
require for preparation of an EIR,' section 21161 indicates a quite
different intent, namely, to restrict the powers of agencies `by
prohibiting [them] from requiring a subsequent or supplemental
environmental impact report' unless the stated conditions are met.
Further, caselaw is equally clear that in situations like this one, lead agencies may modify or
delete previously adopted mitigations measures without preparing a supplemental EIR if the
agency gives a legitimate reason for making the change, and supports its decision with
substantial evidence. (Mani Bros. Real Estate Group v. City of Los Angeles (2007) 153
Cal.App.4th 1385; Katzeff v. Department of Forestry & Fire Protection (2010) 181 Cal.App.4th
601; Lincoln Place Tenants Ass'n v. City of Los Angeles (2005) 130 Cal.,App.4th 1491. These
decisions demonstrate that where the modification or deletion of a mitigation measure would not
change the prior approval in a way that would allow a new significant impact to occur, or
increase the severity of a previously identified significant impact, no subsequent EIR is required
and a brief explanation of the decision not to prepare a subsequent EIR shall be given and can be
provided in an addendum to the prior EIR.
B. Evaluation Of The Potential Environmental Impacts Of The Proposed
Changes To PD -11
The following discussion evaluates the potential environmental consequences associated with the
changes the City is proposing to make to several of the Project conditions in PD -11. Because the
PD -11 conditions at issue involve measures identified solely to address the potential off-site
traffic impacts of the 3F Meadows Project at the intersections of SR 41/Los Altos Road and SR
41/driveway to Project lots 109-112, this discussion is similarly limited to evaluating whether the
proposed changes will result in any new or more severe traffic impacts at those intersections
compared to the potential traffic impacts identified in the original 3F Meadows EIR. This
limitation is reasonable because, as noted above, no changes are proposed for any other aspect of
the Project including the number, location or development of residential lots, roads or any other
aspect of the 3F Meadows Project and the City is not proposing any discretionary approvals
other than the changes to PD -11.
The Proposed Changes To The Condition In PD -11 (Section 9-
3.656(c)(3)(v)Requiring New Left -turn lanes On SR 41 Will Not Result
In Any New Or More Severe Traffic Impacts.
As demonstrated in Exhibit G, the City is proposing to modify this condition as follows:
(v) The etistirrg t ett-turn lanes shallbe eenstFaeted on State Highway 41 for eastbound traffic
entering beth -Los Altos Roadshall be brought into confonnance with current Caltrans Design Standards.
Veiv left -turn lane improvements shall be constructed on State Him v� 41 for eastbound traEic entering
the driveivai! serving lots 109-112. and the te, fig
dFi �,Prots 109 112. I—m rovement plans for- th
left -tum lanes shall be submitted for i:eview and appFeval by Galtr-ans and the City E*neer- prior- to
approval efrl,e Master Development Pl prior to the issuance ofanv additional buildingpennits for
housing units after the year 2013 • the Applicant shall provide the Citv with updated financial assurance
mecha.nisins for the left -turn lane improvements atLosAltos Road. - The left tum lanes for- Los Altos
Read shall be eenstipactedwhen the ADT on Los Altos Readreac-hes five hundred (SOG)TI-ehic4es per day, -
with the development of!he tweaty seventhlet in Phase 1, or- vrit-hin ��ee (3) years of the issuanee e
Timing: (Los Altos Road) The improvements necessary to brim the existine left -turn lane on
State Hizlnvav 41 for eastbound tragic entering LosRoad into confornranee v ith current
Caltrans Design Standards shall be constructed within three Q) years o the effective date ofthe
ordinance amendment or prior to the issuance of the 52'd housinjz unit building permit xvhicheyer
occursfirst leo additional housinje unit buildinzpermits ivill be issued if either of the oreceding
tirninZ requirements is triggered.
(Lots .109-112)The nein left -turn lanes improvements for eastbound traffic on State hi lav 41
entering the driveways accessing Lots 109-112 shall be constructed priorto the issuance ofthe
first housing unit building for anyportionofLots109-112:. unless
Caltrans modifies or eliminates the left -rum lane requirements for the drwevvav accessinL7 Lots
109-112
The above -referenced modifications: (1) make minor text amendments to acknowledge and
address the fact that required left -turn lane onto Los Altos Road has been constructed but may
need further refinements to comply with Caltrans standards; and (2) revise the timing
requirements for construction of new left -turn lane on SR 41 to account for the fact that the left -
turn lane from SR 41 already exists for eastbound traffic entering Los Altos Road and to ensure
no building permits are issued for Project lots 109-112 before the new left -turn lane
improvement is constructed for eastbound SR41 traffic entering the driveway access for Project
lots 109-112, if required by Caltrans.
The 3F Meadows EIR imposed these left -turn lanes on SR41 to address unspecified "safety
hazards." Analysis of current information and data, however, demonstrates that traffic impacts
and safety hazards from the 3F Meadows Project at these two intersections are less than
significant. As noted in W-Tran's report, reported accidents at the SR41/Los Altos Road
intersection are below the statewide average for similar intersections. Further, the W -Trans
report also notes that the required left -turn lane from eastbound SR41 onto Los Altos Road has
already been constructed. Nonetheless, instead of deleting this requirement the City is simply
modifying it to ensure that any additional left -turn lane improvements Caltrans believes are
necessary to bring that existing left lane into conformance with current Caltrans Design
Standards are constructed well before full Project build -out.
Further, the W -Trans' report also concludes that a left -turn lane into the driveway for lots 109-
112 is not warranted under any conditions. According to the recent traffic counts and W -Trans'
conservative analysis regarding potential traffic impacts associated with full build -out of the
Project and other undeveloped lots in the vicinity a left -turn lane into the driveway to lots 109-
112 is neither warranted now nor in the future. Nonetheless, while the City is not currently
proposing to delete the required left -turn lane into lots 109-112, the proposed amendment does
include language permitting Caltrans to delete the requirement at its discretion in the future.
Regardless, because the most current traffic information and impact analysis demonstrates that a
left -turn lane is not required to address any identified adverse environmental impacts associated
with vehicles turning left into lots 109-112, no impacts will result even if Caltrans decides to
modify or delete this requirement in the future. This conclusion is further supported by the fact
that PD -11 will continue to require that the existing residential driveway approach serving
Project lots 109-112 be improved to current Caltrans Design Standards. (See Section IV.13.2.
immediately below.)
In sum, substantial evidence supports the conclusion that the proposed changes to Section 9-
3.656(c)(3)(v) will not result in any new or more severe impacts than those previously identified
in the 3F Meadows EIR and no further environmental impact analysis is required under CEQA.
2. The Proposed Changes To The Condition In PD -11 (Section 9-3.656(c)(3)(vi))
Requiring Vehicle Refuge Lanes Will Not Result In AU New or More Severe
Traffic Impacts.
As demonstrated in Exhibit G, the City is proposing to modify this condition as follows:
0.-5)11ire. E xis,F n:k, i-esidential difteirml appy ach serviraJzY Pots 109-112 scall be brought tip to cu resat
Caltrans Design Standards.
T'iniina• Prior- to the issuance o fhe first !rousing unit buildirglrennit for any pofTion of Lots 100-
11 _
Les Ake-, Read aad the dFiveway sefviag Lets 109 112. In3pr-evefflei# f�a� fef ffie Fefuge Lanes shan be
reales firei-mdred (5)007 vehieles tt t.-,.�.t._ .,t1. 1
" � Y Y. 1 Y �` Cat a.t ians ti ,
The „t. a ., ffige j ae C . the dii ing Lets 109 11-2 1, 71 7 t_.. t d 'at, a5).
deVetnp,.,eat 9f'any P9i ;. a 0--f1 P-0ts 1091 1 t ?
The above -referenced modifications: (1) delete the requirement to construct vehicle refuge
lanes; (2) create a new condition requiring that the existing residential driveway approach to SR
41 serving lots 109-112 be improved to current Caltrans Design Standards; and (3) create timing
requirement for construction of improvements to bring driveway approach to SR 41 serving lots
109-112 to current Caltrans Design Standards to ensure no building permits are issued for lots
109-112 before this improvement is constructed.
The 3F Meadows EIR imposed these left -turn lanes on SR41 to address unspecified "safety
hazards." Analysis of current information and data, however, demonstrates that traffic impacts
and safety hazards from the 3F Meadows Project at these two intersections are less than
significant and that vehicle refuge lanes are not necessary. W -Trans' report demonstrates that
both intersections do and will continue to operate satisfactorily at a level of service C or better
during the peak traffic hours. Accordingly, vehicles desiring to turn out onto SR 41 from Los
Altos Road or from the driveway to Project lots 109-112 will not experience significant adverse
delays. As a result, there is no potential traffic impact at these intersections in need of mitigation
requiring the construction of vehicle refuge lanes and thus no adverse environmental impacts
will result from the deletion of the refuge lane requirements.
While current data showing that reported accidents at the SR41 and Los Altos road intersection
are below the statewide average for similar intersections demonstrates that there are no current
traffic safety concerns at that intersection, no such similar data is available for the intersection of
SR 41 and the driveway to lots 109-112. Accordingly, the City's proposed modification to PD -
11 requires that the driveway approach to SR41 be improved to meet current Caltrans Design
Standards before the issuance of any building permits for lots 109-112. This condition will
ensure that any traffic safety concerns will be addressed before anyone moves into and begins
using the driveway to lots 109-112.
Accordingly, substantial evidence supports the conclusion that the proposed changes to Section
9-3.656(c)(3)(vi) will not result in any new or more severe impacts than those previously
identified in the 3F Meadows EIR and no further environmental impact analysis is required
under CEQA.
3. The Proposed Changes To The Condition In PD -11 (Section 9-3.656(c)(3)(vii))
Requiring Sight Distance Improvements Will Not Result In Any New or More
Severe Traffic Impacts.
As demonstrated in Exhibit G, the City is proposing to enhance this condition as follows:
(vii) T1--ei2plicable sight distance improvements in accordance with current Caltrans Desi -en Standards
T .F L.t rT,nf..n f{�. i}m �'fir�fld?8�'EE��recs a�g1LL gTOig7TGrG2ZOl a.c aduarcdaift�(50)-fccf
ox
b
, shall be constructed at the intersection of Los Altos Road and State Highway 41. and at the
intersection of the driveway serving Lots 109-112 and State Highway 41. Improvement plans for the -,4e
, i¢ distance improvements shall be submitted for review and approvalby Caltrans and the City
Engineer,te approval efthe Master Development Plan. -The site distanee improvements for- Los
Altos 23oadshallhe.. when the ADT o Too AltesRead P aehes&,e1 .i .i(500) - h' 1
es
tlrit•day -:th the deyele.�Y..,e.,t of the twenty-seventh lot in Phase!. ..thi th.-..e(3)years ..Fsl...
Y J
fbuilding pe.-mits f FPh.,se 1 whiehever is ear4ier-.
Timing: Interim s. -Sight distance improvements " ^,t„nance in eenfemignee with n„k4,,,,,..
^^ taHda s for the cun-ent configuration of the Highway 41 andiostAltos Road
intersection ,shall be completed -within six months of the ej%criye date of this ordinance
amendment Ongoin; interim sight distance maintenance shall be completedeend cted by
September 156n each year thereafter and until the ftnal intersection improvements are completed
and accepted by Caltrans. Interim sStght distance improvements and ongoingintenor
maintenance shall be completed as permitted by Caltrans and relevant pemutting agencies and
subiect to the CitvEngineer's yenlication. The Cift-Engineer may.stop issuance o building
permits for housingiti the sight distance maintenance is not conducted
Final sSizht distance improvements for the Highway 41 andLos Altos Road intersection shall be
constructed together -with the final intersection improvements within three (3) years ofthe
effective date of this ordinance amendment or prior to the issuance of building permits or the
52" housmi Z unit, whichever occurs first No additional housing unit buddingpennits isIll be
issued if either of the preceding thnirag muirements is triggered.
The sIte-sight distance improvements for the driveways accessing Lots 109-112 shallbe
constructedprior to the issuance of the first housing unitpernzit.for with the d&Mepment o any
portion of Lots 109-112.
The above -referenced modifications propose: (1) enhanced sight distance requirements to ensure
compliance with the most current Caltrans design standards; and (2) revised timing requirements
for interim/final sight distance improvements.
These enhancements and revised timing requirements take nothing significant away from and
only strengthen the prior sight distance improvement requirement in that the proposed changes
not only ensure adequate sight distance will be provided at both intersections in accordance with
current Caltrans Design Standards 6, but that the sight distance improvements at both
intersections will be made and maintained in the short term due to the new interim timing
requirements until final sight distance improvements are constructed as part of the long-term
intersection improvements required for both intersections. These interim requirements were
6 The use of current standards will increase the traffic safety protection of this condition because while 500 feet of
sight distance clearance was the standard when the 3F Meadows EIR was prepared, Caltrans' current sight distance
clearance standard for vehicles turning out onto a state highway with a design posted speed of 55 mph is now 605
feet of required corner sight distance clearance. (See Caltrans Encroachment Permits Manual, Appendix J - Road
Connections and Driveways.)
added by the City to address public comments about sight -distance issues as it may be several
years until the final improvements to SR-41/Los Altos Road and SR4 1 /driveway to lots 109-112
intersections are constructed pursuant to Sections 9-3.656(c)(3)(vi) [upgraded residential
driveway approach serving lots 109-112] and 9-3.656(c)(3)(ix) [upgraded SR41-Los Altos Road
intersection to add right -turn taper and other related improvements].
Because the prior site distance improvement requirements have been retained and modified
solely to ensure early compliance with modern standards, substantial evidence supports the
conclusion that the proposed changes to Section 9-3.656(c)(3)(vii) will not result in any new or
more severe impacts than those previously identified in the 3F Meadows EIR and no further
environmental impact analysis is required under CEQA.
4. The Proposed Changes To The Condition In PD -11 (Section 9-3.656(c)(3)(viii))
Requiring Advisory And Warning Signage Will Not Result In Any New or More
Severe Traffic Impacts.
As demonstrated in Exhibit G, the City is proposing to enhance this condition as follows:
(viii) Advisory and warning signage shall be installed along State Highway 41 to advise drivers of the
approaching intersection with Los Altos Road and the driveway serving Lots 109-112. Signage shall be
designed and installed to contph witli, and as allowed bv, Caltran 2s Standards. whigh.
lane aliQ. Improvemment plans for the interim and final advisory and warning signage
shall be submitted for review and approv al by Caltrans and the City Engineer -
Prior to the issuance o anti additional housing unit buildingpermits after the
year 2013: the applicant shall provide updated financial assurance mechanisms for the final advisom and
wamingsigrraZe inprovenzents. The signage impr-evements for Los Altos Read shall be eenstme4edwhen
the ADT- en Les Altes Read r-eaehes five hundred (500) vehieles per day, with the developmew of th
twen-13�, seven;lilet in -Phase 1, or- mithin fhEee (3) years of the issuanee of building, peFmits for -Phase
is ear -lief.
Tinting: interun advisor t! and iiarning signage improvements for LosAltos road shall be
const ucted within six months of the effective date of this ordinance amendment. No additional
building permits for housing units will be issued arter sir months of the ef�ective date of 01
ordinance amendment, -if the preceding tuning requirement is not satisfied unless the City%
Engineer and C'onnnunih.-Dei elopment Director grant time extension Tinge extension requests
will only be considered for delays that are outside of the applicants control Final advisory and
warning signage improvements shallbe constructedwwithin three fy vears ofthe effective date of
this ordinance amendment or prior to the issuance of buildingperrnits for the 32nd housing unit
uIticltei,er occurs first No additional housing unit building permits will be issued ifeither of the
preceding£imingrerruirements is triggered
The advisor -t- and warning signage improvements for the driveways accessing Lots 109-112 shall
be constructed prior to the issuance of the first housing unit permit for with the develevmeof
anyportionofLots 109-112.
The above -referenced modifications propose: (1) enhanced advisory/warning signage
requirements to ensure compliance with the most current Caltrans design standards; and (2)
revised timing requirements for interim/final advisory/warning signage.
These enhancements and revised timing requirements take nothing significant away from and
only strengthen the prior requirement in that the modifications not only ensure adequate signage
will be provided at both intersections in accordance with current Caltrans Design Standards, but
that the signage at both intersections will be installed in the short term due to the new interim
timing requirements until final signage improvements are constructed as part of the long-term
intersection improvements required for both intersections. These interim requirements were
added by the City to address public comments about warning signage issues as it may be several
years until the final improvements to SR-41/Los Altos Road and SR41/driveway to lots 109-112
intersections are constructed pursuant to Sections 9-3.656(c)(3)(vi) [upgraded residential
driveway approach serving lots 109-112] and 9-3.656(c)(3)(ix) [upgraded SR41-Los Altos Road
intersection to add right -turn taper and other related improvements].
Because the prior advisory and warning signage requirements have been retained and modified
solely to ensure early compliance with modern standards, substantial evidence supports the
conclusion that the proposed changes to Section 9-3.656(c)(3)(vii) will not result in any new or
more severe impacts than those previously identified in the 3F Meadows EIR and no further
environmental impact analysis is required under CEQA.
5. The Proposed Changes To The Condition In PD -11 (Section 9-3 656(c)(3)(ix))
Requiring New Right -turn Lanes Will Not Result In Any New or More Severe
Traffic Impacts.
As demonstrated in Exhibit G, the City is proposing to modify this condition as follows:
(ix) .2 right turn taper- m compliance iwth the Caltrans Hi hi!:Qy
Design jt4anual. Chapter 400.1ntersections at Grade Figure 405 ,7, oras directed by Caltrans shallbe
constructed on State Highway 41 for westbound traffic entering beth -Los Altos Road._ M
T T ets 109 11-2, Improvement plans for the right-turnlanes-taper" shall be submitted for review and
approval by Caltrans and the City Engineer.x^w*^ appfeval ofthe Master- Develepmen4Dl13r7or to
the issuance ofatm additional housing unit buildingpernaits alter the year 2013: the applicant shall
provide updated financial assurance mechanisrn.s for the right turn taper,
Tinting: A right -tura taper: in compliance u4th the California Caltrans Hig1 Design Manual
Chapter 400 Mtersections at Grade Figure 405 .7, oras directed by Caltrans forLosAltos Road
shall be constructed ivithin three L3) years of the effective date of this ordinance amendment or
prior to the issuance of building pennits for the 52" housing unit u-hichei�er occurs fast No
additional housing unit buildingperrnits will be issued if either of the preceding liming
requirerrrerrts is tr'iZgered.
The r4gk turn !ane for- he s Altos Rea4 shall be eenstnieted when the ADT en Los Altes Read r-eaehes
&,e hundr-ed (5 00) vehicles peF day, with the develepment ef-the twenty sevent-hiet in Phase 1, or- within -
the (3) years ft fL ild nb ^ •* rt. for- Phase i s r
l _
The above -referenced modifications propose: (1) the construction of a right -turn taper (in lieu of
full dedicated right -turn lane) on SR 41 for westbound traffic entering Los Altos Road; (2) the
deletion of the right -turn lane requirement on SR 41 for westbound traffic entering driveway
serving Lots 109-112; and (3) a revised timing requirement for the construction of the right -turn
taper to ensure improvement is constructed well before it is warranted.
The 3F Meadows EIR imposed these right -turn lanes on SR41 in response to comments
submitted by Caltrans and to address unspecified "safety hazards." Analysis of current
information and data, however, demonstrates that traffic impacts and safety hazards from the 3F
Meadows Project at these two intersections are less than significant and that new right -turn lanes
are no longer necessary as the anticipated traffic does not generate enough vehicles making right -
turns at these intersections to require the construction of new right -turn lanes. Additionally,
Caltrans has indicated and recently re -confirmed that it no longer desires the right -turn
channelization because constructing a new right -turn lane at this location would require
extensive realignment of an adjacent creek that would create additional adverse environmental
impacts and right of way constraints. The W -Trans' report demonstrates that both intersections
do and will continue to operate satisfactorily at a level of service C or better during the peak
traffic hours. More importantly, the W -Trans' report demonstrates that the threshold requiring a
new right -turn lane on SR 41 for westbound traffic entering Los Altos Road will not be reached
until an additional 112 residential units were to be developed above and beyond the units
anticipated to be developed by the Project and other nearby undeveloped parcels in the traffic
shed area in the Future Plus Project scenario. Similarly, the W -Trans' report demonstrates that
no additional facilities in the form of either a right -turn lane or right -turn taper would be
warranted on SR 41 for westbound traffic entering the driveway serving Project lots 109-112
even under Future Plus Project traffic conditions due to the low traffic volume to be generated by
the four additional residential lots, and, any potential safety impacts will be addressed by the new
condition discussed above requiring Castlerock to bring the driveway approach to up to current
Caltrans standards prior to development of Project lots 109-112 Accordingly, no new or more
severe impacts will result from deleting the right -turn lane requirements at these intersections
because there is no potential traffic impact now or in the future resulting from the Project that
would require a right -turn lane for mitigation.
However, while right -turn lanes are not warranted at either intersection, W -Trans' report does
conclude that a right -turn taper on SR 41 for westbound traffic entering Los Altos Road is
necessary to reduce a potential traffic impact under both Existing Plus Project and Future Plus
Project scenarios. W -Trans' report also concludes that the right -turn taper would be required just
prior to full build -out of the 101 anticipated residential units studied (82 remaining Project lots,
15 non -Project lots in the same traffic shed and 4 anticipated second units in the traffic shed).
Accordingly, the proposal to add a condition requiring construction of a right -turn taper prior to
the issuance of the 52nd building permit or for the Project or within 3 -years (whichever occurs
first) ensures that the mitigation recommended by Caltrans and confirmed by W -Trans will be in
place well before it is warranted.
In sum, substantial evidence supports the conclusion that the proposed changes to Section 9-
3.656(c)(3)(ix) will not result in any new or more severe impacts than those previously identified
in. the 3F Meadows EIR and no further environmental impact analysis is required under CEQA.
V. CONCLUSION
Based on the analysis in this Addendum and its exhibits, the City concludes that a subsequent
EIR is not necessary as the proposed changes to PD -11 are minor in nature in that they do not
result in any new significant adverse environmental impacts or an increase in the severity of
impacts previously identified in the 3F Meadows EIR. In fact, the changes are decidedly
beneficial from an environmental impact and public safety point of view as they avoid the
creation of a new significant adverse impact (associated with the original PD -11 requirement that
State Route 41 be widened to facilitate construction of a new dedicated right -turn lane from
westbound State Route 41 onto Los Altos Road) and generally provide updates to modernize and
ensure that the improvements that are necessary are built to current Caltrans Design Standards.
Exhibit A 3F Meadows/Oak Ridge Estates Public Improvement Map
M
i.
'' tI
......................
................... ....................................................
\f +'L ur1ASE+wDA45 RESIDENTIAL AUFLDIUG OFFSITE ROAD• UN WRCOS RD
OVEMENTS
Ro� PERWT STATUS R..d ALTo
—t, et I—. S -Z 1. 1-3 I -M M3
P" E I fkasemaxnesuce VOW. Vq. W. 6R11 1 1#4 6W.)(3g,j
OfFAIIE ROAD• LOS ALTDS RD sm sA., 1 9.3 EW.A3Xo)
coE P"..,T uame.
1 9-316*030) gyp
S -OAR RmDE WE LO" LOTS IM•113 ACCESS
2 OFF-WTE ROAD. CEN GALRDLAURELRD
--srs
9-afimo.3114
O9EH$sncElo,31".cl
-k.4 w UrRa L— Rd i %a oW.M.)
6w
"R
-411o3ew03
on.SPaec —e-- P— W.1-9.9=SR4117365&s
NOTE -A. . ............................ — ........
Exhibit B March 6, 1995 letter from Engineering Development Associates (Michael
Hodge) to Caltrans (Larry Newland)
Kao 09 03 01:23p EDA
�E
ENGINEERlHG;.,
GEVEOPMENT.,
■ren[,d7ES
t 8051 5498704 P.2
3. } lsl. 000
march 6, 1995 S r
CalTrans
P.O. BOX 8114 }
50 Higuera Street,
San Luis Obispo. CA 93403
Attn: Larry Newland
Re: hiighway 41 at Las Altos Road (Post -Mlle 11:45)
and Driveway (Post -Mite 10.19)
Dear Larry:
Thank you for meeting with me to discuss specific C&rans criteria requ Sd to determine
the Head for futureowe a
1ehi highway as a rets long As sult of am ants outlined in the Fri al EiR for the 3-ra F
these portions 9
Meadows project. Although the bulk of this project lies a considerable distance ram
these locations, the 1 thas determined that there may be a significant impact to traffic
which could require some modification to the highway_ The purpose of this Setter is to
review our discussions which wi,I atlovr us to formulate a set of goals, which will in turn
allow us to proceed with any required improvements for these areas. The ion central focus
of our meeting involved left -turn channelization, acceleration and deceleration lanes as
summarized in the following issues:
ft tvr� n izatie.�on H ave - if a teff turn i5 made onto a road or
1. �
driveway serving less than 10 lots, then a dedicated left -turn lane is not required.
If 10 lots or more are served by a road connecting to Highway 41, then a left -turn
lane is required. The stacking length is determined by the number of tots x 10
trips/lot/day x .10 = number of trip/peak hour.
2. Riaht-tur�iane into road ar arlve��rav fro Htattway Qi - provide an eight -foot
wide shoulder beginning 150'- 200' from lntersedon.
3, KlCint turna�C�t`pr`i@roti_.—.on n road Qr
'r itSW ontoighW�y__41 - not
required.
at of t to r a
i t hwa
4. Acceler
not requtrea.
500' of sight distance is required in both directions. ri
PLANNING
CIVIL ENGINEERING L A N D S U R V E Y IN G
1324 NIPi1PA0 ST. SAN LUIS OBISPO, CA�9340c o�s_��9-$033 „ FAX $05 237-3737
May 0:3 03 C11:23p Erin (805) 5498704 p.3
Larry Newlar►d ,
March S. 1995
Page ?
tlniierstandeng of our, meeting Please '
of the aforementioned deriis. ThanEc you for your time
Please {�nva'rd a {atter to our office confirming my
6311 me it yoia wish to discuss any
and consideration...
Sincerely
ENGlt3E4RiNG t3EVELOPMENT ASSOCIATES
May 09 03 81:23p EDP (8051 5499704 p.4
03,115/95 08:49 '8'805 549 3077 CALTRANS
ZD01
STATE OF CAIJFOfli7A 8USi2VFS5, TR:ti —'7A-noN A.40HOUSING AGENCY; PETE WttSON. Gowma
DEPARTMENT OF TRANSPOORTA110N 1,
P.C. BOX 6114
TALE LUIS g. 5 ,'3409 St l4
TELERHDAiEF- (8M4: G6i Spyt Ti {`1
TDD (805} 545.3259
Post -Et` Fax Note'
7671 taw "S"
Tb
Fr
coJDe;4
CA.
in:ene Y .,
Pft— t
Fa: e K
fur
Mr. Michael Hodge
C/o EDA
1320 Nipomo Street
San Luis Obispo, CA 93401
Dear Mr. Hodge:
March 15, 2995
5-SI.O-041-10-9/11.45
liouta 41 Xzprova wants
The purpose of this letter is to acknowledge your understanding
of our meeting concerning improvements on Route 41. Based on
your letter of March 6, 1995, it is clear to me that you have a
thorough understanding of Caltrans position regarding operational
and safety standards on this facility. Please be aware that
prior to malting any improvements within the State right-of-way an
encroachment permit must be obtained. Prior to obtaining an
encroachment permit, you are required to have design plans
reviewed by this office and an environmental document approved by
the lead agenby• Biological and archaeological surveys must
specifically address impacts in the state right-ofwway. Should
you have further questions regarding encroachment permits, please
contact Steve Senet, Permits Engineer, at (805) 549-3152.
specific questions concerning roadway geolmatry, sight distance,
or other Caltrans standards should be directed to Deb Heumann in
our Special studies branch at (805) 549-3120.
i want to thank you for your patience. If 2 can be of further
assistance.ploase call Tae at (805) 549-3683.
sincerely,
wrence C. Newland
District 5
Intergovernmental Review Coordinator
ccs JT Gibbs, a'A Vanzevanter, S Senet, SJ Chesebro
SIA -041.-10. EDA
DiSTAM 6 • AR0WCVV0 QI/,' t7Y TRANSPORTATIGW ON TWE C£rJ7X tt COAST
Exhibit C June 15, 2005 letter from Caltrans (Steve Senet) to R. Thompson
Consulting (Russ Thompson)
DEPARTMENT OF TRANSPORTATION
-!, -,T
"HIGUI, ' ZA SIR,4 I
SXNLVISFjBISPO.CA 93,101-5415
PHONF W -l" �-0-1 1,51,
FAX (SIJ5t n4V-JU--1
IDD (805) 5-1)-3259
Anic I i, 2005
05-SLO-4 I-11 A5
Pert -nit No.: Not assigned
Mr. Russ'l-hompson, PE
R.Thompson Consulting
7600'Morrt',) Road
Atascadero CA 93422
Dear Mr. Thompson:
RECEIVED
JUL 0 8 2005
-Subject: Preliminary Encroachment Permit Application Review— Castlerock Development- 3F
Meadows
`lliank you for submitting your Encroachment Permit Application for the off-site
roadway improvements to State Highway 41 at the intersection of Los Altos Road in the
City of Ataseadero. With your application you included two improvement plans as we
previously requested, One set of plans included right turn channelization improvements
to Los Altos Road, and the other set showed improvements without a right turn lane.
In comparing and evaluating the two plan sets, as well as reviewing the environmental
impacts inventory you provided, we have concluded that constructing the right turn
channelivation would raluire extensive realignment of the creek and removal of most of
the vcgetationwithin the creek area. Furthermore, we recognize the difficulty and
technical infeasibility of realigning the creek to the north due to environmental impacts
and right of way constraints.
Aitlioti,,Iieve initially inciic,,itedthat right turn channeliza t ion at this location was desired,
upon further evaluation we have determined that reconstructing the intersection to
conform to the standard public road approach intersection, as shown in Figure 405.2 of
the Caltrans Highway Design Manual, will serve the -traffic needs at this intersection
�Viiile minimizing impacts to the creek. Please proceed with the reduced channelization
d es, i :"' ' I
If you have any questions or wish to discuss this matter please feel free to call meat
(805) 549-3497.
'CaUms impwvix mpWhly.*ro" Vldifam;A'
a.ab 'rt,�,.,.,,�..,..
Exhibit D November 9, 2010 letter from Caltrans (Steve Senet) to Ogden & Fricks LLP
(Roy Odgen)
DF,PAR*rmF,.Nl' OF TRANSPORTATION
$0 HiGUER A S I RE17
SAN IJ ' (AINN), CA 93,11tk5W
xf 51 5 19-3 1111
17'1X IM6049-33129
1 1 Y 711
November 9, 2010
Roy E. Ogden, E.,qLlirC
Ogden & Fricks LLP
6% Santa Rosa Street, Suite `'B
Sari Luis Obispo, California 93401
Dear 1*0r. Ogden-
CASTLEROCK SUIRDIVISMY
This letter is in response to your request for Caltrans to update its position on the need for right
turn channelization at Los Altos Road as part of the off-site improvements for the Castlerock
Subdivision, So long as the subdivision plans have not seen changes that would increase the
number of trips generated by the project at this intersection since we last reviewed this project in
2005, we can maintain our historical position on this issue.
We previously reviewed Substantially complete engineering drawings for the right turn
channelization. and found that there were substantial environmental constraints associated with
altering portions of the adjacent creek. as well as a demonstrated need for additional right of way
for a right turn channelization project. We rind that upgrading the intersection to the standard
public road approach intersection, shown in Figure 405,2 of the Caltrans lliglmay Design
'Manual, would provide a satisfactory design to accommodate vehicles tunling right onto Los
Altos Road.
It, vou require any other information or wish to discuss this matter further please do not hesitate to
call meat (805) 549-3206.
Sincerely.
teve Servet
District give Encroachment Permit Engineer
Exhibit E W -Trans' February 4, 2014 report to City of Atascadero Deputy Public Works
Director (David Athey)
W -t t -a n
February 4, 2014
Mr, David Athey
Deputy Public Works Director Whitlock & Weinix er
City of Atascadero ransporritioo, Inc.
6907 Ei Camino Real1" ,•,,,,, �* An
Atascadero, CA 93422
Sana Rcr;.s, CA 95,101
Los Altos Road/State Route 41 intersection Evaluation
Dear Mr, Athey.
As requested. Whitlock & Weinberger Transportation, Inc. (W -Trans) has prepared this updated traffic
evaluation of the Los Altos Road/State Route (SR) 41 intersections in the City of Atascadero. The
purpose of this evaluation was to determine whether the previous conditions of approval for the
intersection of Los Altos Road/SR 41 are still warranted based on applicable traffic evaluation measures
and standards and using new intersection traffic counts and new estimates of vacant lots still to be
developed off of Los Altos Road.
The City of Atascadero previously approved conditions of development for the Planned Development
Overlay Zone No. i I (PD 11), which includes the 3F Meadows development (Oak Ridge Estates).
Under the existing PD I I conditions, the City required construction of a left -turn lane on the eastbound
approach of SR 41 at Los Altos Road as well as at the future driveway to lots f09-1 12. The eastbound
left -turn lane at Los Altos Road has been constructed, and the eastbound left -turn lane for the private
driveway is discussed in this evaluation. The PD I I conditions also state that a westbound right -turn
lane on SR 41 would be required at both Los Altos Road and the future driveway to lots 109-112. This
analysis considers whether the right -turn lane is necessary on the westbound approach of SR 41 at Los
Altos Road and the future driveway. The analysis also considers whether an acceleration lane Is needed
for traffic turning onto Highway 41 east from Los Altos, and from the private driveway,
Study Area
SR 41 is a two-lane state highway that runs east -west. The intersection with Los Altos Road is a "tee"
intersection with the SR 41 approaches uncontrolled and a stop control on the southbound Los Altos
Road approach. The eastbound approach on SR 41 includes a left -turn lane with 100 feet of storage.
The weekday a.m, and the p.m. peals hour traffic conditions were evaluated in order to capture the
period with highest trip generation caused by the project. The a.m. peak hour occurs between 7 a.m.
and 9 a.m., and the p.m. peak hour occurs between 4 p.m. and 6 p.m.
Traffic Operation Standards
The City of Atascadero General Plan's adopted Level of Service (LOS) standard for streets indicates the
minimum acceptable operation is LCIS C. Operation of the intersection of SR 41 /Los Altos Road was
evaluated using standards provided by the California Department of Transportation (Caltrans) in the
Guide for the Preparation of Traffic Impact Studies. Caltrans indicates that they endeavor to maintain
operation at the transition from LOS C to LOS D: however, where the operation is already below LOS
C,, the existing measure of effectiveness should be maintained. For intersections, this means that the:
existing control delay should be maintained.
Mr. David Athey Page 2 February 4, 2014
Existing Traffic Conditions
Existing traffic volumes were obtained from count data collected on August 28. 2013 during the a.m. and
p.m, peak hours. Local schools were in session when these counts were obtained. Los Altos Road
currently carries 26 a.m. peak hour trips, 27 p.m. peak hour trips and an estimated Average Daily Traffic
(ADT) of 265 vehicles using a standard peak hour factor of 10 percent. The existing volumes and
conditions were analyzed using 2000 Highway Capacity Manual methodology and results indicates that all
approaches and movements operate at a satisfactory level of service during both the a.m. and p.m. peak
hours. Table I shows the average delay per vehicle and the level of service associated with the
southbound Los Altos Road approach and the eastbound left -turning vehicles.
Table I
Existing Peak hour Intersection Level of Service Calculations
Study Intersection Existing Conditions Existing plus 101 Residential Units
Approach t AM Peak PM Peak AM Peak PM Peak
Delay LOS Delay LOS Delay LOS Delay LOS
1, SR4HLosAltosRd
Eastbound Left -turn 7.8 A 8.0 A 7.9 A 8.1 A
Los Altos Rd Approach to SR 41 12.6 8 13.4 8 1Z.9 8 f 4.4 a
Notes: Delay is measured in average seconds per vehicle; LOS= Level of Service; Existing. Conditions
incorporates traffic generated by occupied homes both inside and outside of Oak Ridge Estates
Collisions
The collision history for the intersection was evaluated for the most recent five years for which data is
available January (, 2005 through December 31, 2009) to determine if there have been any trends or
patterns chat may indicate a safety issue. Two collisions were reported at the intersection of SR 41/1 -os
Altos Road based on the collision information obtained through the California Highway Patrol and
published in their Statewide Integrated Traffic Records System (SWITRS) reports. This translates to a
rate of 0.18 collisions per million vehicles entering (clmve). The statewide average for similar
intersections is 0.22. cfmve. Therefore, the existing intersection conditions are not significant.
Development Area Description
The Oak Ridge Estates development is currently under construction in the western region of the City of
Atascadero. The development has access to SR 41 via Los Altos Road and will eventually have access to
the Traffic WaylUS 101 interchange via Cenegal Road, Laurel Road and Santa Lucia Road. Full build out
of Oak Ridge Estates as well as other parcels outside of Oak Ridge Estates could result in an additional
101 single-family homes. The Oak Ridge Estates development currently consists of 26 developed and 82
undeveloped lots. Within the traffic shed area and outside of Oak Ridge Estates there are also 62
developed units and 15 undeveloped lots. Also, based on experience in other residential areas of the
City, it is expected that up to four secondary units on lots within the development area are expected
over the next 20 years. City staff requested that these additional lots be included in the analysis so that
a conservative estimate of traffic conditions would be developed. Therefore, the remaining balance of
the 101 residential units consists of the 82 lots in Oak Ridge Estates, 15 lots outside of Oak Ridge
Estates, and 4 secondary units.
Mr. David Athey Page 3 February 4, 2014
Trip Generation
The anticipated trip generation for a residential project is generally based on rates published by the
Institute of Transportation Engineers (ITE) in Trip Generation Manual, 9th Edition, 2012 for "Single Family
Detached Housing" (ITE LU 210). However, based on the existing traffic counts collected at the
intersection of SR 4111.os Altos Road, the existing residential development off of Los Altos Road
generates significantly less traffic than suggested by these rates.
There are currently 88 occupied residential homes located within and adjacent to the Oak Ridge
development (26 occupied units within Oakridge Estates and 62 other units). The majority of these
homes likely use Los Altos Road to access the greater transportation network. As shown in Table 2
below, the existing 88 residential units generate approximately 0.31 trips per unit during the p.m. peak
hour. This is substantially less than the ITE Single Family Detached Housing rate of 1.00 trips per unit
For comparison, ITE also includes rates for Recreational Homes which includes a p.m. peak hour rate of
0.26 trips per unit. It is recommended that trips for the additional 101 units' be based on an average of
the ITE Single Family rates and the ITE Recreational Home rates. The inboundfou[bound splits were
based on the existing survey for the a.m. peak hour and the ITE Single Family rates for the p.m. peak
hour. This combination of rates results in lower rates than the Single Family rates, but higher than
current experience in the area which should be appropriate to account for any potential changes in trip
generating activity as the area builds out.
With the recommended rates, the additional 101 units would be expected to generate 640 vehicle trips
per day, including 46 trips during the a.m, peak hour and 64 trips during the p.m. peak hour. All of the
rates and resulting trips are shown in Table 2.
Table 2
Trip Generation Rates
Land Use
Units
Daily
Weekday
Weekday
AM Peak Hour
PM Peak Hour
Rate Trips
Rate Trips In Out
Rate Trips In
Out
Los Altos Survey"
88 du
nla nla
0.30 26 11 15
0.31 27 23
4
Single Family Detached Housing*
101 du
9.52 962
0.75 76 19 57
1.00 101 64
37
Recreational Homes'
101 du
3-16 319
0.16 16 11 5
0.26 26 11
15
Recommended Rate
101 du
16,34 640
0.46 46 14" 27
1 0.63 64 40''
24
Mote: "= actual traffic counts; du =dwelling units; ' = ITE rates, "= inlout split based on survey, ''= iniout split
based on ITE rates
The project. EIR assigned 50 percent of the project trips to the Los Altos Road access at 5R 41, while
the remaining 50 percent would travel via Cenegal Road to Santa Lucia Road and other connecting
routes. This assumption is consistent with the project travel times between the project and the
downtown/ Highway 101 corridor using these two routes, and was therefore used for this study.
The directional distribution of the inbound and outbound trips at Los Altos Road was determined based
on the proportion of existing trips. Based on the 2013 counts, 90 percent of the existing trips into and
' The 101 units consist of 15 potential units outside the Oak Ridge Estates, 82 potential units within Oak Ridge
Estates. and four secondary units.
Mr. David Athey Page 4 February 4, 2014
out of Los Altos Road involve vehicles traveling to/from east of the intersection. The remaining 10
percent of trips originate or terminate west of Los Altos Road.
Using these assumptions, the 101 residential units would be expected to generate 9 inbound right -
turning vehicles during the a.m. peak hour and 18 vehicles during the p.m. peak hour.
Existing plus Project
The intersection was evaluated with the addition of the projected trips associated with the Oak Ridge
Estates and adjacent development to determine how it would operate without any modifications to the
existing geometrics. With these additional trips, delay for both approaches would be expected to
increase slightly, though the level of service would remain the same for both the eastbound left -turn and
southbound approach. Table I provides a summary of Existing plus Project levels of service and average
vehicle delay expected with the trips that would be expected upon build out, but no further physical
improvements. Because the southbound Los Altos Road approach would operate at Level of Service B
with the additional residential units, no additional improvements such as a left -turn accelerationtrefuge
lane would be warranted. Warrants for the right -turn lane are discussed below.
Future Traffic Conditions
Segment volumes for the horizon year of 2035 were obtained from SLOCOG's (San Luis Obispo Council
of Governments) gravity demand model and translated to turning movement volumes at the study
intersection using factoring. The factors were derived from the existing fink volumes and future link
volumes to project likely future turning movement volumes at the intersection. The resulting projections
show a growth rate of 1.29 for the a.m, peak hour and 1.42 for the p.m. peak hour which translates to an
annual growth of 1.2 and 1.6 percent per year between 2013 and 2035. This background growth was only
applied to the through traffic on SR 41 and not to traffic into and out of Los Altos Road since additional
traffic growth was assumed for Los Altos Road in the form of the 101 additional residential units.
Based on these future volumes and assuming no other changes from existing conditions, all approaches
and movements are expected to operate at satisfactory levels of service during both the a.m. and p.m.
peak hours under both Future conditions and Future plus Project conditions. Table 3 shows the average
delay per vehicle and the levels of service associated with the southbound approach and the eastbound
left -turning vehicles.
Table 3
Future Peak hour Intersection Level of Service Calculations
Study Intersection
Future Conditions
s Future plus 101 Residential Units
AppCoach
AM Peak PM Peak
AM Peak PM Peak
Delay LOS Delay LOS
Delay LOS Delay LOS
I. SR 411Los Altos Rd
Eastbound Leff -tura
7.9 A 81 A
7.9 A 8.2 A
Los Altos Rd Approach to SR 41
I 13.3 8 15.9 C
13.6 B 16.5 C
Notes: Delay is measured in average seconds per vehicle; LOS= Level of Service; Results for minor approaches
and left -turn approaches to two-way stop -controlled interseaions are indicated in italics
Turn Lane Analysis
The need for a right -turn lane or taper was evaluated based on criteria contained in the intersection
Channefization Design Guide, National Cooperative Highway Research Program (NCHRP) Report No.
Mr. David Athey Page S February 4. 2014
279, Transportation Research Board, 1985. A right turn lane would consist of a lane installed to the
right of the travel lane and would be a minimum of twelve foot wide with a shoulder. A right turn taper
is a shoulder area that gets progressively wider as the motorist drives toward the intersection. Both
improvements are meant to provide an area for motorists turning right to move out of the traffic lane.
The warrants were evaluated using existing and future volumes both with and without the project.
Following are the results.
• Existing Conditions — No warrants met
• Existing plus 101 residential units — A right -turn taper would be warranted during the p.m. peak hour.
• Future Conditions No warrants met
• Future plus 101 residential units — A right -turn taper would be warranted during the p.m. peak hour.
The volumes are under the threshold for a right -turn lane by 20 additional right -turn vehicles trips
during the peak p.m. peak hour period which translates to 112additional residential units beyond the
101 residential units included in the analysis.
Table 4 summarizes the westbound right -turn volumes for all scenarios as well as the thresholds for the
right -turn taper and right -turn lane. The number of additional dwelling units needed to trigger the need
for a right -turn taper and/or right -turn lane has also been provided. Based on this data, if 112 additional
units were to be developed in the study area, above the studied 101, a right -turn lane would be warranted.
Right -Turn Volumes
Threshold
Tab€e 4
Westbound Right -Turn Volumes by Scenario
Existing Existing plus 101
Conditions Residential Units
AM PM AM PM
Right -Turn Volume
10
21
19
Taper Threshold
41
38
41
Turn Lane Threshold
77
73
77
Additional Units
68
.........
...........
Toper Threshold
334 du
93 du
2S1 du
Turn Lane Thn shold
765 du
291 du
662 du
Future Future plus 101
Conditions Residential Units
AM PM AM PM
39
10
21
19
39
38
33
27
35
27
73
68
59
68
59
—
285 du
34 du
183 du
—
f 90 do
662 du
213 du
559 du
112 du
Notes: Additional units indicate the number of additional single-family dwelling units needs to trigger the warrant
threshold
Turn Lane Analysis for Lots 109-112
The need for a left or right -turn lane or taper was evaluated for the intersection of SR 41 with the access
to Lots 109 to 112. Currently, there are no separate turn lanes on SR 4 f to access these four lots. Using
the same criteria contained in the Intersection Channelization Design Guide, the warrants were evaluated
using future volumes on SR 41 and a maximum of four inbound right -turn vehicles and four inbound left -
turn vehicles which should exceed the anticipated turning volumes into this access. Based on these
assumptions, no additional facilities in the form of either a left -turn lane, right -turn lane or right -turn taper
would be warranted due to the potentially low traffic volume generated by four residential units. Based on
the results of the Level of Service analysis for the SR 41/Los Altos Road intersection, the approach from
Lots 109-112 would be expected to operate at a LOS C or better in the future which would not warrant
the addition of accelerationlrefuge lane for left -turn movements out of the access.
Mr. David Athey Page b February 4, 2014
Conclusions
• Two collisions were reported at SR 41/Los Altos Road for the five-year study period which is less
than the expected experience for similar facilities.
• Cinder Existing Conditions, the intersection of SR 41/Los Altos Road operates at acceptable levels of
service during both the a.m. and p.m. peak hours; continued acceptable operation is expected upon
adding project -generated traffic.
• SR 41 /Los Altos Road would continue to operate at acceptable levels of service during both the a.m.
and p.m, peak hours under Year 2035 Future conditions with and without the addition of
development -generated traffic.
• Because the southbound Los Altos Road approach would operate at an acceptable Level of Service
C with the additional 101 residential units, no additional improvements such as a left -turn
refuge/acceleration lane are warranted to address intersection level of service.
At SR 41/Los Altos Road, a westbound right -turn taper is warranted under the Existing plus Project
and Future plus Project conditions.
• Under Future plus Project conditions, a right -turn lane would be warranted on SR 41 at Los Altos
Road if 112 additional units were developed beyond the assumed 101 residential units..
• At SR 41 and the access to Lots 104-112, future traffic volumes and buildout of the lots do not
warrant the need for either a left -turn lane, right -turn lane, right -turn taper or left -turn
refuge/acceleration lane.
Recommendations
• Since there already is a right -turn taper at the intersection, the existing intersection design should
be evaluated to determine if the existing right -turn taper meets the requirements of Figure 405.7
"Public Road Intersections" of the Caltrans Highway Design Manual, If not, the existing taper should
be improved to meet the applicable design standards.
• if 112 additional units are anticipated for the study area above and beyond the 101 anticipated
residential units, a right -turn lane should be installed before issuance of building permits for any of
the 112 additional units.
Thank you for giving W -Trans the opportunity to provide these services. Please call if you have any
questions.
y�
Sincerely
S;feve einberger, P QE
Rrincipal
S 7ATA4f(f_Lt0
Enclosures: Lev of Service Calculations
Tu Lane Warrant Spreadsheets
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Turn Lane Warrant Analysis - Tee Intersections
Study IntcasLCson^ SR at a Las AMOS
Study 5camvnd Existing Cbndibans AM Peak taxa
6imfAL• of Arz"Is Sliest. EasMest Cross Street Intersects: From tate NoM
Vve&aMund Volumes ivehRwj I I Eastbound Volumes {valvhr)
1 reough Volume . 253 } Cr_. " „t 246 • Through Volume
Right Tum Volume . To _ -::—� t • Left Tum Volume
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Weslbound Saeed UfWz 55 mph I.F,j Easitmurxf Speed Unit 55 mph
.astboand Configuration: 2 Lanes - Un*vided Lbs Altos EaStbound ConrrWaUM 2 Larios - Undivided
Westbound Right Turn lane Warrants
i. Cheek f7 tight tutu •rolusne Owens
NOT WARRANTED Less than 40 vehicias
2. Cheri: advance velums threshold aliens for tum wne
Advancing Volume Threshold AV s
AdvancN Maida Va • 263
It AV-Va than warrarnis met -
Right Tum Lane Wananlad: NO
Westbountl Right Turn Taper Warrants
�evaWste t! right turn lane Is unwarranted)
1_ Cheek to3er volume criteria
I NOT WARRANTED- Less than 20 vehicles 1
2. Cheer, advance velums mreshoid cnlena tar caper
Advancing Volume Threarofd AV. -
Advancing Volume Va. 263
It AV-Va then»arrant is met -
Right Tush Taper warranted: NO
Eastbound LeR'rum lane Warrants
Percentage tett Trans %ft 0.4%
Advwwjng Volume Threshold AV 1108 vehbr
9 AVcVA then warrant is met
400 6M am 100D :.
M—If Vof—e 4Vn)
• Study Intersection
Tae W* Mab. tag warrant threshold tor. S5 mph
Tum lane wahanted It poinita8s 10 right of warrant threshold- line
Lett Tum Lane Warranted: NO
V1elhodobgy cased on Was7.e1gW State Transpostatlen Center Research Report Mafhw For PtAwtumrg rnaeraectkvrlmponementa,. January 1991_
Theright tum We and ntpet anatysie Is based on wort, conducted by Cottrell in 1994.
The tell tum lane analysts is based on work cwWucted by M.D. ttarmeba% in 1957, and modified by Kikuchi and Ch"robody in 1991_
W-T—s
32f47J2073
Turn Lane Warrant Analysis - Tee Intersections
Study InKaer_ bdn- SR at a Los Ahos
Study Scenwim Existing Conditions Ptd Peak boar
Cireakxt of Analysis Street EafiMesl Cross Street Imersects: From the North
th'esUMdnd VolunieS Sve"Tj I
Through Volume- 266
RlghLTum Volume- 21
Westbowo Steed Llrlut:
WestbxwA Coniiguratiion:
Westbound Right Turn Lane Warrants
1. Cheat for nght turn •eniume soma
NOT WARRANTED Less than 40 vehiofes
2. Cheer: advance tdurrae threshold Criteria for wan Lane
Advancing Volume Threshold AV - -
AdY ='N Volume Va a 307
P AVcVa Than warranta rnet -
RI hL'ium Lane Warraittad:
Weatbomnd Right Turn Taper Warrants
{evaluate if right turn lane is unwarranted)
1. Cher': txR— volume Otana
I Thresholds not met, continue to next sten I
2. Chaak advenix vdur� threshold criteria for Lane,
Advancing Volume ThfeSrQld AV - 490
Advancing Volume Va - ?07
If AV�V'a then rvarrantis met No
RI. ht Turn Taper Warranted: NO
Eastbound Left Turn Lane Warrants
Percenra,e Lett Turns %N 0.7%
Advancing Volume Threshoid AV 1024 vehthr
It AVcVa than warrznt is met
_____._.............
1000
goo
_ 000
700
cno
sar
400
a 300
s0
;DD
a
200 400 600 800 1000
A,I--g Vob—jVa]
• Study Intersection
Twc tans rosoNay warrant threshold tor. 55 mph
Tum lane warranted 9 point lags to right of waTam threshold line
txdt Tum Lame Warranted: NO
Methodology based on waoorgton State Transportation Cemer Research Report Medwo Foe PrfortortV rnterseerf lrr>Froyements, January lg9i.
The right turn lane and taper ansiysis is based on work conducted try Cottrell in 1981.
The telt Turn lane analyexis is based on wort, conducted by MO. KamreEvav in 2967, and modified by MkWhl and Chaiuobony in 1991.
WT—t 12A 2013
Eastbound Voltones {ve"rj
>
!`+ 305-Tnmugh Volume
LLL&...
2 - Left Two Volume
Easslboun2 Speed Unit 55 mph
Los Altos
Easthouret Conrk,�r bew 2 Lattev - ndl— Iu�ided
I Thresholds not met, continue to next sten I
2. Chaak advenix vdur� threshold criteria for Lane,
Advancing Volume ThfeSrQld AV - 490
Advancing Volume Va - ?07
If AV�V'a then rvarrantis met No
RI. ht Turn Taper Warranted: NO
Eastbound Left Turn Lane Warrants
Percenra,e Lett Turns %N 0.7%
Advancing Volume Threshoid AV 1024 vehthr
It AVcVa than warrznt is met
_____._.............
1000
goo
_ 000
700
cno
sar
400
a 300
s0
;DD
a
200 400 600 800 1000
A,I--g Vob—jVa]
• Study Intersection
Twc tans rosoNay warrant threshold tor. 55 mph
Tum lane warranted 9 point lags to right of waTam threshold line
txdt Tum Lame Warranted: NO
Methodology based on waoorgton State Transportation Cemer Research Report Medwo Foe PrfortortV rnterseerf lrr>Froyements, January lg9i.
The right turn lane and taper ansiysis is based on work conducted try Cottrell in 1981.
The telt Turn lane analyexis is based on wort, conducted by MO. KamreEvav in 2967, and modified by MkWhl and Chaiuobony in 1991.
WT—t 12A 2013
Turn Lane Warrant Analysis - Tee Intersections
Study InWsectiom SR at 8 Les A110e
Study Scenario: Existing + Pn*cfi Conditions AM Peak Hour
Oirectim of AntO sls S1reeL EasMes1 Cross Street tMersects: From the NoM
ifa'astbound llolum*S (veh1hr) I I taslhound Volumes (vehuhr)
Though Volume * 253 ? fie""`TM`""'"'1 2A8 • through Volume
Right Tum Volume - 1:9 r "j 2 - Lett Tsar Volum*
5'c estbDund Steed Ural: 55 Mon Essibourrd Speed UnVt 55 mph
Westtvxand Comiguration: 2 Lanes - UndrAde2 Los Aims EMIboura Comrauraom_ 1 Lart49 — UfldwidedUMlu[ded
Westbound Right Turn Lane Warrants
4. Cheese for right turn ,Mime Cfnlere,
NOT WARRANTED Less than 40 vehletes
Z. Cheo. advance vL4u"-- threshold afteda for tan taste
Advancing Volume Threshold AV n -
Advancing Volume Va- 272
If AV<Va then Waaamt file[ -
Right Turn Lane Warranted: NO
Westbound Right Turn Taper Warrants
{evaluate if right turn lane Is unwarranted)
1. Chess; taw vdfume Cdteda
I NOT WARRANTED -Leas then 20 vehicles I
2. Chesil advance velume threshold criteria for taper
Advendng Volume Threshold AV • -
AdvanctngVolume Vo- M
It AV<Va then .omn(is met -
Right Turn Taper er Warrented: NO
Eastbound Lett Tum Lane Warrants
PercentaW Lett Turns %H 0.8%
Advancing Volume Threshold AV 1038 vetvhr
NAV<Va then aarram is met
1040
900
_ am
700
EO0
Soo
400
$ .306
g 206
100
0
204 400 860 am IOOD
PaJvartng Vosime {V.)
• study Inwessacbcm
Two fare teadwa'y, warrant threshold sort 55 mph
Tum lane v anted It point fiefs to right of warrant threshad line
Left Tum Lane Warranted: NU
methodology based on was"to±a Slate Transoortadon Center Research Repart ,M&W tw Pr1Oest2uV InItSrsecDOn fmpfm`&manrs,. January 1991.
The right turn late and taper analysis is based on ,N .. cond cred by Ca;lrelf n 1581.
T he lett turn tare anatysls is based on work eondueted by M.D. HWmehnk in 1957, and modfled by fOku chi and CrwVobony rn 1941.
I
WT—s 12117!2013
Turn Lane Warrant Analysis - Tee Intersections
Study interseeoon- SR 41 & Los Altos
Study scensro. U51ing * l M*d CondAlons PM peak Hour
Direakxt of An Iylis 81reet: EastPNest Cross Street Intersects: From the Noft
W&&ocund Volume& (venthr) I
Irmi.0 Volume* 286 C
Right rum Volume= 39 °
westbwJW speed ufrv,: 55 n
Y7astbound Configuration: firms - OF
Westbound Right Tum Lane warrants
f. Cheek tw right turn 'Aflame a4feMi
NOT WARRANTED Leu than 40 vehiciea
2. Chem advance vdume threshold criteria €a wm trine
Advancing Volume Threshold AV m -
rovar ing Volume Va= 325
It AVKVa Itl x warrant Ys met -
Right gum Lane Warranted: NO
Westbound Right Turn Taper Wensants
)evaluate if right turn lame Is unwarranted)
1. Chec3: tKc volume antena
Eastbound Volumes (vatlrtir)
a
<-_—==1 305 .1'"h Volume
_4 4 : Lett Tues Vohx»e
EasIbound Speed land, 55 mph
Los Altos Eastbound Contipuaocn: 2 LT
I Thresholds not met, aantinue to next a" I
2. Ch(eeA advance vdums threshold efiletia tot tater
Advandng Volume Thresrald AV a 310
Advancing Volume Va - 325
L' AV-Va then Narrant A met Yes
Right Tuan Taper Warranted: YES
Eastbound Left Tran Lane Warrants
Perarrttage Left Trans 169 '1.3%
Advancing Volume Threshold AV 928 ,ehrhr
If AVcVa than *seam is met
.................................
1000
900
600
3 Toe
too
4100
$ 700
$ aoD
100
D
200 40D 000 am t00D
At1ratwn0 V,*,—tVa)
♦ Study Intersection
TWo i �, f020AV Warrent thteshadd for. 55 mph
Tum lane warranted It para teas to fight of warrant ftesh"I fine
Lett Tum Lane Warranted: NO
Methodology based on avastungbon State :"ransportstlan Center Research Repan Amhod For Piw oz tV intnrsecciat lmpro rmenls, January tg97.
The right tum lane and taper analy5i315 based on i"k conducted try Cottrell in 1951.
The lets turn lane analyses is based on work "dueted try M..D. Hwma&A in 11%7, and =afNd by iGkurhi and Chakroborty in 19911.
WY Tress
204t2014
Turn Lane Warrant Analysis - Tee Intersections
Study Inrersctzm: SR at a Los Atlas
Study ScenwW_ Future Candifiaas At.1 Peak Hour
Direction of A^a#ysis S1reeL EastrNest Cross Street Intersects: Front the North
wwesmound Volurces (vehfits)
lmaugtl Volume- 336 C
bight Tum Volume - 10
Westbound Steed UnIC S5 n
Vaestboand Conitguratian: 2 Lanes - Ur
Westbound Right Turn Lane Warrants
t. Chad, Cot tight Iurn volume mrtem
NOT WARRANTED Less than 40 vehities
2. Cheri: advance vaume threshold criteria for tun Eine
Advarxing Volume ThresMild AV - -
AdvancingVotune Va- 336
If AVcV'a then warrant M met -
Rohl :um Lane Warranled: NO
Westbound Right Turn Taper Warrants
{evaluatb if right turn lane is unwarranted)
1. Checs taper volume crilerla
Easu=nd Volumes {vefvht)
e .^ -_-�: 317 -Through Volume
I t - Lett Tum Vatwlle
Ea4ho.rd Speed LiMIL 55 mph
—Ji Los Altos Eastbound Catf4traom: !Lanes- Undivided
I NOT WARRANTED -Lasa then 20 vehicles 1
2. ChecA advance vdurre threshold criteria for La;w
Advancing Volume Threshold AV. -
Advancing Volume Va. 336
If AVeVa then warrant to met -
Right Tuni Taper Warranted: NO
Easthourd Leh Tum Lane Warrants
percentage Lett Turns %h 0.3%
Advancing Volume Threshold AV 1034 veMr
It AV<V'a then warrant is met
1630
9013
_ 900
700
900
sw
pa. 300
10D
0
?CO 40D 6Dtl Hilo 100D
ad,n,gV to rjV.)
• Study Inwfsectim
Toa leave rasa"wmy warrant threshold tor. 55 mph
Tum Sane warranted if Pon fells to right at warrare 0ueshOld line
Lett Tum cane Warranted: !10
Medmdobgy based on Waspangtan State Trans«wttson Cadtter Research Rewtt M,NPad Fw Prf anng tntersectan Int}xot amonts, January 1997.
The right tum Lane acd taper analysis Is based a1 "4. conducted by Cottrell in 1991.
T he len turn lane anafys is based on work canducted by NCO. I WmekN, in 1967, and m, 262d by Nlkuchi and Chakrobony W 1991.
WT,.,. 12f17t2013
Turn Lane Warrant Analysis - Tee Intersections
Study hitersWbon_ SR 41 & LOS ands
Study Scerwurr. Future Conditions PAA Peak Hour
Direction of hrattsis Street EsVAVe I. Cross Street Intersects: From the North
%VeSMWnd Volume lvehihvj I I Eastbound Volumes {veluTr)
Ttrmugh Volume. 405* C"-"—^^1 433 • Through Volume
Right Tum Volume • 21 -``+ 2 - Left tam Volume-
l; estbound Steed tura:: 55 mph � , EaswouM Speed Limit 55 mph
Ylasttx>vfld COMtgutation: 2 tanms - undlv{deo Los Altos EastCouM Configurabcn_1 Lanes - noT hided
Westbound Right Turn Lane Warrants
t. Checx w right turn volume C31emw
NOT WARRANTED Less than 40 vehities
Z. Checb, advance vdume threshold criteria for tum far*
Advancing Volume Threshold AV • -
AdvZing Volume Va - 427
If AV-Va then warrant as met -
Pjoht Turn Lane Warranted: NO
Westbound Right Turn Taper Warrants
jevaluate if right turn two Is unwruranted)
1_ Chec+: tater volume criteria,
1 Threaholds not met, continue to next step 1
2. Chee4 advance vclurrr_ threshold criteria for taper
Advandng Volume Thresrcld AV- 490
Advancing Volume Ve- 427
If AVKVs then warrant is met No
Right Turn Ta er Wamtoled: NO
Eastbound Left Turn Lane Warrants
PetcentaW Left Turns %ft 0.5%
Advancing Volume Threshold AV 420 vehihr
It AVNs then *arrant is met
1e
900
BOO
3 Ino
2 600
�g -,w
A 400
100
200
100
D
200 400 600 e00 f00D
Adv ftw,o Vatumr, IVa)
♦ Study Intersection
Toa Iso* roadway warrant threshold tor. 55 mph
Tum lane warranted it paint tads io fight of warrant thzeshoid line
Lett Tum Lane Warranted: ND
Methodology based bas Was.-wIgbol State Transperuilon Center Research Report Atatw7 For PnbMmtg intersection Improvements, January 1997.
The right tum line and taper analysis Is based on wort conducted by Cottrell in 1981.
The left turn lane analysis is based on work conducted by MD. Harn eLu in 1167, and medited by Itiku hl and Chaixabony in 1991.
W -T pis 12'47!2013
Turn Lane Warrant Analysis - Tee Intersections
Study Intcesactxl: SR 41 a Los Paras
Study Soanarra: Future + Praiect Concluorts AM Peak Hour
Direal n of Analisis Street EasttlWesl Cross street Ifnerseds: From the North
Waatoound VO4UMas (vehPhf) I I £aslbound Volumes [vehfir)
Ttu�gh Volume w 37b �a C`.W.�"�"""' 31"F +Tmaugh Volume
RiphCfum Volume+ 2 +Left Tum Volare
wesibound Speed Limit: 55 mph fiffl't Eastbo.n d Speed Limit- 55 mph
Westbound Configuration: 2L3nas-UnC71ded Los Altos Eastbourra Contrprrrebon:tLanes-Undivided
Westbound Right Turn Lane Warrants
t. Chase f0r right turn vd,-Me C:1era
NOT WARRANTED Less than 40 vehiciem
2. Checi, advance vcfume threshold allarla for arm large
Advaming Volume Thresnold AV+
PAvis=ing Vo,me Va+ 345
It AV<Va than warrant met -
Rjqhl Tum lane Warranted: No
Weatbound Right Turn Taper Warrants
je,"tuate R right turn lana is unwarranted)
1_ Chet;: tape; volume c.HLena
I NOT WARRANTED - Less than 20 vehicles I
2. Chec% advance vclur�- threshold cnteha for taxr
Advancing Volume Threshold AV a -
Advancing Volume Va+ 145
If AV<Va than warrant n met -
Po hf Tan TaW Warraaned: No
Eastbound Lett Turn Lane Warrants
Percentage Left Trans %it OA
Advancing Volume Threshold AV 952 vetuhr
0 AV<Va than vaerant is met
100
NO
_ Ii00
� 700
E00
F 500
400
300
2200
100
0
• study Intersection
Two twee roscney warrant threshold for. 55 mph
Tum lane warranted It paait fa0s 10 right of warrard ttuesho fine
Left Tum Lane Warranted: No
Methodology based on Wavwgbon State Tranegoonation Center Research Report Mattw7 For Pnontmng klesseCrw Imp o,SrAs.Mr. January 1997_
The right tum kine and taper analysis is based on rwrk conducted by Cottrell in 1961.
The left Sum lane analys is based on rwrk Conducted by hLD. HarmalAk in 1967, and modltled by lakuchl and Cnakraboety, an 1 Wl1
W -Toms 121;7t2013
Turn Lane Warrant Analysis - Tee Intersections
Study Int watiion. SR ata LOS AnOs
sway Scenatio: Future + Pro{eol Cowlions PM peat ]dour
Directic t of ArAtus SveeL EaW.Vest Cross Street Imersects: from the North
WeRmound Vdurvies (veh8w)
Tt:tough Volume • 446
Right Turn Volume- 39
Westbound 3Deed LlfW,., 55
Westba nd CoNiguration: tions - i
Westbound Right Turn Lane Warrants
1. Cherie tor fighl limn "Ch me crneh9
MOT WARRANTED Less than 40"hlciu-s
2. Cheei: advance vdurn? threshold criteria for tum taco-
Advancing Volume Threshold AV- -
AdvarrccngVolume Vas 446
1E AV<Va int mauant 6's met -
w ht ;um Late Warranted: No
Westbound Right Turn Taper Warrants
{evaluate it right turn lane is un.w atod]l
9. Checik trrsw volume criteria
2. Chevd advanx vdun - threshold cdtena for taper
Advandng Volume,hrearmid AV • 310
Advancing Volume Va - 445
It AVNs then Aarranta met Yes
Righ! Tums Taper Warranted: YES
Eastbound Left Tum Lane Warrants
PercentivX Lett Turns %fi 01.9%
Advancing Volume Threshold AV 856 veNhr
0 AV-Va then warrant is met
7400
Sao
800
i iDD
9 £4)D
sDo
44D
a 300
104
0
2T4 400 6CA 800 low
Ad --g L'uLmc {V.)
♦ Study Intersection
Twr9lane reaft" warrant threshold tor. 55 mph
Tum lane warranted If pose (809 10 right of warrant Mmstuoid line
Lett Tum LAne Warranted: NO
Methodology based i i WaW&VM. State Transaortanon Calx r Research Report ,Nettad r or PtW&zVV tn.Y,rsecbat lmfrtrmaments. January 2997_
The right wm rano afd taper onatys�a is based on work conducted by Conrail in 1989.
The lah lura lane anatysA is based on work conducted by M.D. karmonk in 1957, and modified by Klkurhf and Cna roborty in 1994_
W-Tm,,s 2f4r2414
Emmound Volumes ivehmrj
�.'^x ..,J 433 a Through Volume
La..1 I
-..S—d - Lett Tum Vokalw_
Eastbound Speed Unit 55 mph
LOS Altos
Eastbound Cottliguraticn_ 2 Lames - Undivided
Eastbound Left Tum Lane Warrants
PercentivX Lett Turns %fi 01.9%
Advancing Volume Threshold AV 856 veNhr
0 AV-Va then warrant is met
7400
Sao
800
i iDD
9 £4)D
sDo
44D
a 300
104
0
2T4 400 6CA 800 low
Ad --g L'uLmc {V.)
♦ Study Intersection
Twr9lane reaft" warrant threshold tor. 55 mph
Tum lane warranted If pose (809 10 right of warrant Mmstuoid line
Lett Tum LAne Warranted: NO
Methodology based i i WaW&VM. State Transaortanon Calx r Research Report ,Nettad r or PtW&zVV tn.Y,rsecbat lmfrtrmaments. January 2997_
The right wm rano afd taper onatys�a is based on work conducted by Conrail in 1989.
The lah lura lane anatysA is based on work conducted by M.D. karmonk in 1957, and modified by Klkurhf and Cna roborty in 1994_
W-Tm,,s 2f4r2414
Turn Lane Warrant Analysis - Tee Intersections
Study Intersacraxt, SR 41 atm Alms
Study Scawfr , Ddsting Conditions Nd Peak tfosa (threshold)
❑irectbn of Anatyais Sheer EBWA(est Cross Street Intersects: From the North
WeSMOUnd Volumes Svehft) I I £aslbound Volumes (vervnq
T hrough Volume. 253 ��.:.+. <;`,:';W :::::.Y„t 246 «Through Volume
Right Tum Vdiune o 77•"==� G: S - Left Tam Vokatw
westbaund Saeed Una(: 55 mph 5 r --'M Speed Unit: 55 mph
wesUx%Md CoNiguration: 2 Lames - Undvided Los Altos Eastbowrd ConfAfuraom: 2 Lanes - UndlAded
Westbound Right Tum Lane Warrants
t. Chest for tight turn •rniu,me rnena
Thresholds twat met, continue to next step
2. Chan, advance vciums_� threshold criteria for tum lane
.Advancing Volume Threshold AV - 322: t
Advancing Volume Vas 330
If AVSVa then warrant is met Yes
Pltit ium Lane Warranted; YES
Westbound Right Turn Taper Warrents
{evacuate if right turn cane is unwarmnicdl
1. Check tow voume criteria
I WA I
2. Checa sevanoe Mum* ihresttold criteria for raper
Advancing Volunw Thresraid AV. _
Advancing Volume Va-
If AV<Va then ,varrant is met -
hal ht Tufts Taper Warranled: NIA
Eastbound Leh Yurn Lane Wsnants
Percentage Lett Turns %it 0.4%
Advancing Volume Threshold AV 1108 veh ihr
It AVcVa then aarrant is met
low
9w
wo
700
P tp0
`-00
400
$ 300
&
200
toe
0
200 400 boa 900 100D
All—t;VuS.,mc9V.)
• Study IntessecWn
Tura taR roadw^sy warrent threshold tor. 55 mph
Tum lane warranted it poled falls to right of warrant threshm line
Left ium Lane Warranted: Np
Memodo" based on Wasaargbon State Transpa inion canter Resew h Repon Method Fw PrionomV rrrersearar fmprarsments, January 5987.
The right turn Linc attd taper analysis is based on wort, conducted by Ca-lmt in 5961.
The left turn We ansiys,�a m based on warl. conducted by ht.D. Kwmel ak in 1967, and modified by Murhl and Cnakrobony at 1991.
4V•Tw-
uarmta
Turn Lane Warrant Analysis - Tee Intersections
Study lnrfisecbxt_ SR 41 &Los Afton
Study Seer%Woa USUng CWCIItieris PM Peak Hour (Threahold)
❑ireal rt of Anatr'als Street Eas7LVest Cross Street intersects: From the NOM
Wes¢xwnd volurrts (vehpyr, I
Ittmu gh volume - Per C
Rlghi Tum volume - 73 c
Vi estto.na -,Deed Lfrrdl: 55 n
Vlesdxtuund CoMquration: 2 La!A-- Ur
Westbound Right Turn Lane Warrants
i- Chat for nghl. turn •v&,Me Mert4
Thresholds mat met, coatirure to next step
2. Chec-i, advance VCYumo threshold crilena for cum lar
Advancing Volume Threshold AV- 352.4
Fdvanclag Viceume Va. 359
It AVsVa 11160 Warrant to met Yes
Right °urn Lane Warranted: YES
W outbound Right Turn Taper Warrants
{evacuate if right turn lane is unwarrentedj
1. Chack tw volume cdterta
1 i8A I
2. Check advance vdunae threshold criteria for taper
Advancing Volum& Threshold AV - _
Advancing Volume Va - _
It AVcVa than aslant a met -
Right Two Taper Waoanled: NIA
Eastbound Volumes {veluTlr)
305 - Through Volume
2 - Lett Tom Vokow
Eastbound Speed Unit- 55 mph
Las Apes Eastbound Con03urabcn: 2 Larw_•s - Undivtded
Eastbound Left Tum Lane Warrants
Pencentage Left Turns %H 0.7 %
Advancirng Volume Threshold AV 1024 veh/hr
U AVCVa than warrant is met
1000
000
_ WO
700
f.W
Soo
o 400
8 300
S 206
100
0
♦
200 40o 600 am 1000
A dvat," V.i.ma jVa)
Study Interaectim
Two tame raaavvey w'aRant threshold lot. 55 mph
Tum lane warranted t' point tats 10 right d warms tMestold line
3.ett7um Lane Warranted: No
M&Ihoddlogy based as Wast'.a3gM Siate Transportation Cassia Research Report Meow f•'orprkuaazm January 1997 -
The right wm foto sod open anatys±s is basad Das ,wrk mnductad ay CodrNt in i o6d.
The tell turn lane analys is based on work conducted by M.o. HarmeWx in 1967, and nmahed by Kikuchi and Chakrobody in 1091.
W -Paas 21412014
Turn Lane Warrant Analysis - Tee Intersections
Study Inrcesec6on_ SR 41 a Los Ahas
Study SceilafsD: Existing -e Pat3}eG9 t'Andllidr8 AM Peak Haut (Ttret dt
Directim of Ar,&4�15 Street EesV'Nesl
Cross Street Intersects: From the North
SR 41
SR 41
Aleanound Volurnas (veh&)
Eastbound Volumes (YeNhfl
T'trm,gh Volume - 253
<----W_7 246 s Through Volume
Right Tum Volume - 77 =
2 - Lett True Vohatr_
s
Westbcrsnd.Speed Urr4t: 55 mph
EastnounC Speed LitnlL 55 mph
Westbound Conliguration: 2 ixtes -' n6voEd Los Altos
Eastbound ConigrfaGCn: 2 Lanes - Ultlivided
Westbound Right Turn Lane Warrants
1. Check tax right turn volume adeno
Thresholds not met, oeatlnur to mess step
2. Check advance volume threshold criteria tm atm §ane
Attvancing Volume Threshold AV- 322.4
Advancing Volume Va. 330
It AV-Va lnen warrant A met Yes
Right Yum Lane warranted: YIES
Westbound Right Turn Taper Warrants
(evaluate H right tum Ian* is unwarranted)
1. Check tape, Wume criteria
I PLA I
2. Cher; advance vdurrae threshold criteria tot eager
Advancing Volunw Threvvel AV-
Advancing
V-Advancing Volume Va -
it AV�Va then warrant zs mel -
Right Turn Taper Warranted: NIA
Eastbound Left Tura Lane Warrants
Percentne, Lett Turns %v 0.8%
Adramcing Volume Threshold AV 1038 vetdhr
0 AV=L'a then warrant is met
............... ---_
tD00
906
_ ROD
S� 700
P fAD
SW
400
346
200
100
0
200 4oD 600 600 MOD
Advacrirg v.1u—)Vn)
• Study Ineemact"
Ton are roadway Ngrrant threshold tor: 55 mph
Tum lane warranted d point tags to right at warrant threshold line
Lel Tum Lane Warranted: NO
Methodology based on Was,'<aagton State Trunsporcstion Canter Research Report Method Pav PrRa(ez/txg tnlarsec0at lmpo,v3manhr, January 1997.
The right tum Sane and Caper analysis is based on wvoA: conducted by Cottrell in 1061.
The laf3 turn lane anatysas is based on work conducted by M.D. Hwmemnk in 1967, and madW_d by Kikuchi and Chakraborty in 1 LBt
W-Trens
u4aat4
Turn Lane Warrant Analysis - Tee Intersections
Study Inrc SK6om_ SR 41 a LOS Ahoy
Study Soerw o: U51ing * Project CorkSuons PM Peak nom (Treesholdl
Cirectkxt al nlaffis Street: Esstti.Vesi Cross Street intersects: from the NcM
weaumund Volurnt (vehft) I I Eastbound Volumes {vefVq)
'th-ough Volume w 786 -��y, Cti*„_�'^� -,os . Through volume
Right Tum Volume. 73""`""' `'*,,�.
4 - Lett Two VOtutlw
weslb�na s=eed Unwl: 55 mph Eas+Jround Speed Limit. 55 mph
"eestbexnnd Configuration: 2 Lanes - Una vided Los Altos E_asthound Contigruabon_ 2 Lakes - Undlutded
Westbound Right Turn Lane Warrants
I. Check tw right turn -,vhrme omens
Thresholds not met. Oominut to next step
2. Chep, advance volume threshold critena tot tum tare
Advancing Volume Threshold AV s 352.4
AdvarcirV Vrdume Va. 359
If AV,Va then warranlr met Yes
Right ;um Lane Warranted: YES
Westbound Right Turn Taper Warrants
(evacuate if
right turn lane Is unwarranted)
1. Checi. twer volume criteria
1 WA I
2. Choc:, advance vclun>e threshold criteria dor taper
A.tivsndng Volume Threstmld AV w
Advancing Volume Ve -
If AV4Va then .warrant is met -
Right Tum Taper WanwAed: NIA
15asttound Left Turn Lane Warrants
Percentage Lett Tuns %it 1.3%
Advwlctng Volume Threshold AV 928 vehihr
It AVcVa Lien wafant is met
100
SOD
_ wo
700
wo
'.OD
400
100
wo
100
D
210 40D 600 Rod 1001)
Aclvarci.O VcA,mc IVr.)
♦ study Inesrsectim .
Toa Ise rosaway warrant threshold for. 55 mph
Tum lane warranted If pant faia to right at waf=t thresho421i"
Led Tum Lane Warranted: NO
Methodology based bn WOstungton State TransDo(Utton Canter Research Report Mathod For GtAm+6zirt7 Mt*.,s cion fmpro»amenls, January 1997 -
The right him We and Muer analysis is based on work con&icted by Cottre4 in 19a1.
The left tum lane anatysas is based on cork conducted by 0.-D, Humehak in 1957, and madded by Nikuchl and Chakroboety in 1 E91,
41r:Trans 2MWI4
Turn Lane Warrant Analysis - Tee Intersections
Study Inm4sacwm_ SR 41 3 LOS Wtas
Study Scenra: Future Condnons Aht Peak Hour iThresholdi
Direction of Anatyals street Esslw.Vest Cross Street Intersects: From the Horth
INLEMOund VolurrrPs (veh&.) I I Eastbound Vohmea (veluhr)
Tfarwgh Volume - 3?fid,+""'""""""1 317 w Through Volume
Right Tum Volume w6g r. T r t - Left Turn Votunw
Westudce A 5oeed L1rnf,: 55 man 1 Eastbound Speed Lknit 55 mph
Wzstboumd Contigwation: 2 Lines - undrvbded Lns Altos Easthound Cont4trabom 2 Lanes - Undivided
Westbound Right Turn Lane Warrants
4. Chett, far fight turn VftkuMe CrAI' ri
Thresholds not met, continue to next step
2. Check advance volume_ threshold alteda for tunt Sante
Advancing Volume Threshold AV w 3899
Advancing Volume Va= 394
it AV<Va than warrant m met Yes
RJQht l um Lane Warranted: YES
Westbound Right Turn Taper Warrents
(evaluate N right turn lane is unwarranted)
t. Check taper volume criteria
I MA I
2. Chaek advance volume threshold criteria tot talter
Advancing Volumz Thresrelc AV -
Advancirrq Volume Va w
It AV-Va then wartam to met -
Right Tum Taper Watranted: NIA
Eastbound Lett Turn Lane Warrants
Pervertar,'e Lett Turns %it 0.3 %
Advaaeing Volume Threshold AV 103A vetuhr
8 AV<r'a then warrant is met
lo00.. ....._.., ._............. ... ....,,,,.
900
_ 800
600
4470 ___. __._ ........
$ 300
& 2Do
100
0 2DO 400 600 ELIC
t00D
ktvai�vg VULme IVa)
• study Intersection
ixa tare rosavray warant threshold sof: 55 mph
Turn lane warranted 11 post tags to fight of warrant threshold 8ne
Leet Tum Lane Warranted: NO
Methodology based on Was3logton State Transportation Censer Research Report AWW For Pthrt nog tnterseedAM Improvements, January 4991.
the rlgm tum lane acid miler anatyss Is dosed do stunk conducted oy Co;IrNl itc 4984.
The left lura lane analyses is based on v"k conducted by M.D. KwmeWrtk in 4967, and modified by Klltuchl and Cnsuoborty in 4941.
WTr s 214!2414
Turn Lane Warrant Analysis - Tee Intersections
Study Inraasaaaon' SR 41 a LOS A1106
Study Scanartx Future Conditions PM peak Hour {Threshold)
Direction of Analysis S1teeC EsstlWest Cross Street Intersects: From the North
Wesmound Volumes (venrtu) I I Easthound Volumes t;vetvhr)
ihmugh Volume. AIM—`" �..�.' 433 +Through Volume
Right Tum Volume.59 ms'"µ -- '.. 2 -Left Tssm Vokane
1�711
Westtaxmd s;.eed tinct': 55 mprl I E"- bound Speed Limit 55 rnph
Westbn d Configuration: 2 lam es - Undniae2 Los Altos EastbouM Conngureb= 2 Lsa�sa - Cinoluidad
Westbound (tight Turn Lane Warrants
1. Check Ea• fight turn -'ok n1e CM&M
Thresholds not met, eoogni* to next step
2. Cheri. advance vcWms threshold clileda tot turn Lane
Advancing Volume Threshold AV- 457.5
Pv7var�cexJ V"ume Va - 466
It AV<Va thenwarranitsmat Yes
Right sum Lane Worranted: YES
Westbound Right Turn Taper Warrants
)evaluate it right turn lane is unwarranted)
1. CheO, twe, volume cdtena
I RIA I
2. Meet advance vciurna Ihresnold criteria for latter
Advandng Volume Threshold AV • -
Advancing Volume Va.
It AV-Va then aarraM ca met -
Rl h: Tum Taper Wairanled: NIA
Fastbourid Left Tum Lane Warrants
Petoentarte Lett Turns %k 0.5%
Alva cing Volume Threshold AV 920 vehihr
It AVNs then *seam is met
...._ 1400.,._.
90o
_ am
700
Wo
400
$ Toa
200
too
0
200 40D 1.00 EDD 1000
Adverting Vch— IV.)
Study Intersection
Two lathe: roadway warrant Inreshoid lor. 55 mph
Tum lane warranted it point fa&s to right of wward threshold line
Lett Tum lane Warranted: ND
memos o" based on wawk"M. state Trans."tttation Career Research Re;= method For Pifont&wg tnttrseOort frnpr000menls, January 1091.
The right aim lane and taper anslysas is based on vm k conWated Dy Cottrell in 1981.
The lel'urn lane analysis is based on work rnnducfed by M.D. ttaame&nk in 4967, and rima tled by Kikuchi and Chak obony ur 199L
W=Triers 214MGM
Turn Lane Warrant Analysis - Tee Intersections
Study Intea9aobxC SR 41 8 LOS AbbS
Study SCenMak Futue > Project Cdndtrans AM Peak Hour (Ttveshdd I
Diteetrto-rl of Anatysis S1re L East'West Cmss Street intersects: From the Nbnh
SR4 SR41
veesmound Vdue-s (veh&t) Eastbound Volumes fvelnhr)
?hrough Volume w 322-6 —+• . r - T h Volume
Right Tum Volume - 68 `... ' �C 2 - Leat Turn Volurn-
r
Wealt'M d speed urw% 55 m�.n ' Eastbound Speed Limit 55 mph
Weaitbo,Md Corilguraton: Lanes - Undvided Los ANoa Easibourld Conbgurabonv 1Lanes -Undivided
Westbound Right Turn Lane Warrants
t. Chace for rkfm tum •rcifunle C &M
Thresholds not met, continue to next atop
2. Cher* advance vdurrs threshold criteria for rum tarie
Advandng Volume Threshold AV = 389;9
Advamceig Volume Vas 341
It AVKL'a lhanuarrardia met Yes
Right Tum inane Warranted: YES
Westbound Right Turn Taper Warrants
(evaluate if right turn lane I9 unwarranted)
1. Cheat+. taper volume eritena
1 WA I
2. Check advance vdum- Ihresiold crltena tot taper
Advandng Volume Threstold AV-
Advancing
V-Advancing Volume Va -
It AVKV2 then warrant is meg -
Right Tum Taper Warranted: NIA
Easthound Leh Tum Lane Warrants
Peicentw4e Lett Turns %it 0.6%
Advancing Volume Threshold AV 982 vewhr
It AVKV'a then warrant is met
2o- 409 eea
Advar—l; Vaarma (Va).
000 1000
• Study Inw_aseatim
Tv a wte roar •ap Aarrant threshold lot.. 55 mph
Tum lane warranted d point tags to right of warrant toreshad line
Leh Tum Lane Warranted: No
Methodology based on wao"bart state Transportation Center Research Report Awned For Poomzing twerso w tntprovements. January 1921.
The right tum We :a,4 taper anatysaa Is based on work... conducted by Cottrell x11981.
The len turn lame snal}sss is based on avnrk conducted by M.D. Harm.Wtk in 1957, and modified by iCkuchl and Chakroborty is 1991.
WTnais 21112014
Turn Lane Warrant Analysis - Tee Intersections
Study InWfSRCbon_ SR 41 a Los A1110%
Study SceroM. Future a Ptofew Cora'diona PM Peak Hour (Thresholdl
pirecibn of Anafj'sla Street East/Wesl Cross Street lmeraeCta: From the North
Wesm,wmf Volumes (vehAsr) 1
Tr4ou9h Volume a 406 C===v`"
C
R19111 rum Volume a 59
%Vestbx w Saeed U(NI., 55 Mph
r
"U",
Veestbsrnd r-onfigutrAon: 2LafE9-Und¢vfded
los Albs
westbound Right Turn Lane Warrants
I.
Cheat ter fight turn vbFmte omens
Thresholds not met, cordlnue to neat atep
2_ Checb: advanM vcfum- threshold erliena for tum lane
.Advancing Volume Threshold AV a457.5
Advacccing Vohrne Va a 466
It AVKVa than warrant 6 met Yes
ht tum Lane warranted: YES
Westbound Right Turn Taper Warrents
)evaluate if right turn lane is unwarranted)
1_ Cheri; taxer volume cniena
1 KtA l
2. Ch&6, advanx vdum.e threshold criteria for taper
Advancing Volume Th(eatdld A,-
Advancing
VaAdvancing Volume Ve a It AVSVa then warrant is mel -
Flight Trues Taper Wamanlad: NIA
Eastbound Volumes {vatyhr)
433 - Through Volume
4 a UA Tam VCBwne
Easthourd Speed Link 55 mph
EaetbourYJ Conti "hen_ 2 Lanes - Undivided
Eastbound Lett Turn Lane Warrants
Penxmt yr a Left Turns %b 0.9 %
Advancing Volume Threshold AV 1356 vetuhr
It AVcVa then warrant is met
1600
900
800
_ 700
wo
500
4x0
"o
140
i00
0
204 doe Sia ss00 1000
nrlYaronp >.��,me q va)
♦ Study Intersection
Two Fane To3cvsy wshant threshoid for. 55 mph
Tum lane warranted if point faits to right of warrant toresrol d line
9.e±t Tum lane Warranted: NO
Aietnodoagy based ars wasnasgWa State Transportation Cancer Research Report Matfwo rot Ptbmzwg mterse rw hworsments. January 1997.
The right tum Sane and taper anaty>sis Is based on iwrk conducted by Cottrell in 1 gtff.
The len turn lane analysts is based on vwOrk rnndui:W by KLO. Harmearni in 1967, and motif ed by Kikuchi and Chakrationy in 1991.
WTrans
21412014
Turn Lane Warrant Analysis - Tee Intersections
Study Inr[rseebona SR 41 & Lots 104.412
Study Seertatur: Future + Projeol Conditions AM Prvait Hoar
Oifeaon of Jrea4ysis Street EasMesl Cross Street Intersects: From the Nom
%Yesmound Volumea (ver -11) I I Eastbound Votumes fvelvhrj
Ttrnugh Volume- 37.5 _ 317 -Through Volume
Right Tum Volume- a- _ �•� 4-Lettrum Volume
Vveslbouw.Speed U,W,: 55 MM' � E. lbo.w Speed Limll 55 mph
Westbound Corig9uralian: 2 Lw*-, - UnOutded Los Alma Eastbound ConD?arabom2 Lanes - Undlvtded
Westbound Right Turn Lane Warrants
1. Check fa fight.lurn •sttime M&M
NOT WARRANTEO Less than 40 vehicles
2. Cheri, advance vatlume- threshold critena tar tum taae
Advancing Volume Threshold AV =
A4vancelg Volume V8= we
8 AVcVa then warrant a met
hl sum Lane Warrotted: NO
Westbound Right Tum Taper Warrants
(evaluate R right turn lana Is unwarranted)
1. Cher+. team vdfum2 Catena
2. Checi, advance volume threshold enteria for taper
A&andng Volume Thfesrold ,q!�/ s -
Advandno Volume Va - 330
It AVtVa then Marram is met -
Right Tum Taper Wartamed: NO
a 2oD 40C GM MO ME)
Adw 5Vouma(Va)
Study Int_rsectim
Two tane road,.V warrant threshold tor. 55 mph
Tum lane warranted Ir point (a$a 10 right of warrant Mfeshold tine
LN[ Tum Lane Warranted: No
3,M0lodobgy (zased on Y6as+ri+gton State T ranworcaaan Center Reas&r h Report Medwl For PrAaMinry fntarsacta r lmpro:•emenrs, January 1491.
The right Wm Lane and taper analysis is based on work, conducted by Cottrell a 1081.
The lett tum lane analyses is based an work canducted by ht.O. Hamwk, k in 7957, and modttled by lfdkochi and Cnakrobonj in 144t.
W-Trrx s 121t712413
Turn Lane Warrant Analysis - Tee Intersections
Study Inttvsecoca+t. SR 41 & Lots 1019-112
Study Scerwe. Futwe . Proieal Conditions PM Peat. Hour
Direction of AdWlis Streat Eas[!`N&st Cross Street intersects: From the North
wesmound Volun as (vehft) I I Easibound Volumes [vahithli
?trough Volume - 406 r— ,7, 433 v Through Volume
Right Tum Volume - 4 4 - Lett Tum Vokme
Weslt-aml Speed Lln rt: 55 mph L ,1 east5oum Speed Limit 55 mph
W ea to.md Configuration: 2 LanEs - UnCvide2 Lis Aims Eastbound ContigumboM2 Lammi - ndl
Westbound Right Turn Lane Warrants
t. Che mr right turn rovme ashen
NUT WARRANTED Leas than 40 vehictas
2. Chea, ad1^ance velurne 0irLshold criteria ice tum Lane
Advancing Volume Threshold AV-
lidvazn:ingVolume Va- 410
It AVK Vs Ina(! avanart is met -
Right IUM Lane Warrante0: NO
Westbound Right Turn Taper Warrants
/evaluate if right turn Lane Is unwerranied)
1. Check tsar volume criteria
I NOT WARRANTED -Less then 20 vehicles I
2. Check advanCe udume Ihresndld etheda for tae r
Advancing Volum, Thresamld AV- -
Advantong Volume Va - 410
It AV-Va then .ramani is met -
Right Tuna I'Spar Wamaa'led: NO
Eastbound Lett Turn Lane Warrants
Perremta,tia Leg Tuns %H 0.91E
Advancing Volurne Threshold AV 8% vehihr
It AWV'a then warrant is met
................. ..
low
900
800
_
700
ESD
a,_pp
400
300
S 200
100
0
•
200 400 600 6d0 1000
Ad
va—g VoLmelV.)
Study Intersection
Two tare roadway aam mt threshold tor. 55 mph
Tum lane warranted it point tea to right of warrant vVeshoM line
Left Tum Lane Warranted: No
?.lemodobgy based on Warrataagtdn State?ransporGlllan Ce,7ter Resaarch Re^„art A.tKlrod flu PrAsrlvarg tntarsoctm lmprmaments,.,lsnuary 1897_
The right lum lane and taper anatysn Is based as nook wnducl d oy Coraalt m 1961.
The ]art turn lane anays & is based on work conducted by M.O. H21malu k in 1967, and modried by Kikuchi and CnakrobOfty in 1991.
W-T—m
121t712013
Exhibit F March 11, 2014 letter from Caltrans (Steve Senet) to City Deputy Public
Works Director (David Athey)
STz;. fig •1 t� '�-= M� Cw t `PCRT�T#C K YNp i9SR'ti!N{3 hGC _
--------- JN4i ' '
DEPA TNIFNT O TRANSPORTAT>!ON
Pt:RMIPS DI TA(tTME!1T
50 f tIGt71;1L<? j I It if;Sl'
s
"AN Ltl110111SPO, UA 93 -IM -5415
11HO E, t,St}5) `s-19-3'246
FAX (305) 549-.1062
1'i3t> (30s) 549-3254
F'E�c yutTr pQireri
Illl(?'t/tY'�': t1. tjAi.Cs.Cfl4i(1SSi,�,
13e erX' a sept+
March 11, 2014
David Atitey
Deputy Public Works Director
6907 Ll Camino Real
Atasuidero CA 93442
Dear Mr_ Athey.,
Subject: Revisions to Planned Development Overlay= Zone No. t I (PD 11)
"t lits letter is in response to your request for Caltrans to review and provide input on the revisions to the
C'itV,S Municipal Code Section PD -'1 1, Caltrans has reviewed the information provided by the City and
has no oh_lkeeiicnts to the proposed revisions contained in the document, "Drat - staff proposed PD -I I text
alne:3dniert 3211114," of which pages 6, 7, 8 & 9 are attached to this letter bearing niy signature. Itis
understood that the applicant will be responsible for addressing additional Caltrans engineering design
requirements as the applicant proceeds through the encroachment permit application process.
We appreciate the opportunity to participate in the process of coordinating the required improvements
that will occur on Highway X11, and look fonvard to continuing; our cooperation with the City and the
C'asticrock Development in constructing these improvements. If you wish to discuss this matter further
please do not hesitate to call me at (805) 549-3206.
Snrcrel.y=,
Fes.
St
eve Senet
District Permit Engineer
Attachment
By Certit:ied Mail
cc: Adana Fukushirna- Caltrans IGR
Paul McC;lintic-Traffic Department
T,Ghmns implum's rn obitity across colifornia"
3/11114
Draft — staff proposed PES -11 text amendment Page 6
1 lw cum: widening on Los Altos Road shall be constructed when the ADT on Los Altos Road
miches fie hundred (500) vehicles per day, with the developirim of the twenty-stwenth lot in Phase 1,
fir %iilhitl three (3) years of the issuance of building permits for Phase 1, whichever is earlier.
(6) A '"Stop" sign and stop bar shall be constructed at the intersection ot'Los Altos Road and San
Marcos Road and shall he Constructed with the develolmient oft'hase i ofitri: project and prior to the
i,smmce of building permils,
(iii) San Marcos Road tietween Los Altos Road and the ptx)jw boundary shall be improved
pvcPalatory at ac x tt.utec orlilk portion of road into the City maintained system.
C'm vc widening shall be constructed where curve radii is less than two hundred (.100) fi:d, Curve
%videniag shall Ix- constructed in conformance with Section 4, Paragraph F sof the City Standard
spc61ications, or its approved by the City Engineer. Improvement plans for the curve widening shall be
s�ilniiiticd for review and approval by lite City Engineer prior to approval Of thL, Mastcr mvelopment
Plan,
San Marcos Road between Los Altos Road and the project boundary shall he improved prior to the
dcvulopment Of Phase I of die project, and prior to the issuance of building pennits,
(iv) The applicant $half enter into a maintenance agreement with the City for the portion of San
Marcos Road between Los Altos Road and the project boundary. Ilio agreement shall guarantee that
damagc to the road which results from construction truffic gencrated by the development of the project is
pvkqxrly repaired. The agreement shall be reviewed and approved by the City Frigincer and site City
Ationicy, The agreement shall remain in -force throughout construction of Phase I and Phase 2 of the
pfojco.
A mairitcriance security in a lbnn acceptable to the City Attorney and the City Lilgincer shall tX
posted for the portion of San Marcos Road between Los Altos Road and the project boundary, The
mainterlance. security shall retrain effective until Final acceptance of both Phase I and Phase 2 of the
project.
(V) file existing #aefl-tum lane-, t4la-ean:itztte*d oil State Highway 4i for castbound traffic
entering both -Los Altos Road shall he bnQuehl into conformance LAah �cyrrem Caltrum
(lie dFi%ew6y serving !.,Of$ 109 Ha. im!""eftlem plo"9WHI
b� "IlffifiS HAd tile (41Y l4!giAetFpri6F W
-r the Master DeY44opittent Pion -. Prior to the issuance ofan)" additiawl building, petnd4fir
fir �01( The leA RIFF1 Iffile-, fOf 60S N110s
on " -ts
shall lit ...
..... fele, wo the A6 s-Aitt
Wyerith lot -
-, �nryq�lk- iss�c,. i
3111/14
Draft — staff proposed PDA 1 text amendment Page 7
new left -turn hult's initwaveimnis for mulb
cxttefing the driveway& accessing Lots 109-112 shat I be constructed prior to issrranrr of the
any portion of Lots 109- 1127,mIcss
CO
�bl t- i�rn mje re
AttiMmenq,kr &#, )wXg
�C&Tn rte 1
Darin : Prior to the issuance ofthe Lirst hylusing imit building, Permit for.ata yp
oLtion of qts L09-
W-AIIA
Had 1hO City ilOgiNetF PAOF i9 01MIN—
hale
v ,e "Akf-umer, ua 1!
n� —�— - (OAff— � Phmik-
Standfmis MIMI be- constnicted at the intersection Off -os Altai Road and Stale Hi4hway 41, and at the
intersection orthe driveimay serving Lots I W -I 12 and Staic Highway 41, ImprovcTnent plans for th"ke
1ixlrt distance improvements shall be submitted for rc%,icw and approval by Caltnwand Ow City
Engineer, fWifO-I"PPFSV 1 ------- - -iffl�}
Stwemvv
4t6miV sight distance wohilegancesball be completed bl,
sah{cct to tiro
Cit)JE
P
Fural sight z&tunce improventents &r _11like M hiva v 41 qjItl Los Altos Roml
Jor dy
52'4 howlissi wift. whkhejr accursJ,rv. NoWilln.1 huiw remit building, Xlqij,, A,
L3MU �Iur
3/11114
Draft — staff proposed Pfd -11 text amendment Page 8
'rbct ie ,eighldislance improvements for the driveways accessing Lots lot? -112 sljfj I I be
constructed prior to the is.ruance qfdwfir�(I housing unit pe-titfirWith,tl+ee#wek4i"t4*017any
Portion or I .0ti 109-111
(viii) Advisory and warning signage shall be installed along State Highway 41 to advise drivers of
the with Los Altos Road and die driveway serving Lots 109-112. Signage shall
lic I.le-jigiteLf q e , !Lj ieflies a le4-
_qtd installed L- St lords. whieli itidi
ffl�L_
tw*4a#K-o4t,ad. Improvement plans for the jo advisory and waming signage irnfmwoom4s
Miall besubmitted for review azul approval by Caltrans and the City Enginftr fWiOf4"ppFOY01444he
Prior to file kvitgove 91 EL
"I"ItitUNi"'I'll
tr for Las Altar rood x4all he
commicled +t;ifhinvx months of the C& e—live rk�qfhis �vrdihwice�omwulnient- �No ad�didanol
htrftr ire EloA!Y-#; will lie issued six nswuhs oLt ,
_AE— hoe ffeefivedate -ifth-4
Ordinance qiqz!Ildmeig .,/ � 4
jitheyrecedin 3-1 , , - C'ftt
timil, , re Wrement is no, —Yhr
I-Qirq,qMU err qqn. 'rigleg
1011 OnA T onsidvr,tul for delays dKitare outside the gpkeant's twnyraj. Final advisory and
thm constructed within rhne Q) vean, ofthe pff,ecjjv,. rlrrt of
W �,Iwt
L
drenwnu is trig, erect
I he adviuAnr gnd signage improvements for the driveways accessing Lots 109-112 shall
be constructed IT jtCr_IIILtf$)_r Wkl+4heAtvthVttWtt Cif
any portion ot'Lois 109-112.
Ox) A riIq trmrr toner
the ( 'aIIransjAgAWp
Siva ll bg
conqructcd on Stale Highway 41 for wcMbound traffic entering bolh,-Los Altos Road. twukhe4riyowoy
plans for the right -turn lonoti-Ayler shall be submitted for review and
approval by Caltransand the City Engineer.
t"indrzd rig-ki-Iurn lover, in compArarse jXjIll
Cligpler IqO Intersertiom at Grade Fi wre 405, 7 or as directed bv CyInyins, feteL
_Ag_Ajtos R
,f rrrttertdine ter
i. 19LL& L2f
3/11114
Draft — staff proposed PDA 1 text amendment Page g
44't-g#t ttsrr�Nrt}r-f+ l;Ftsntklitr: Itvttt€ hnil tart5h+tc 6 eh tlah�s c+rtd rtwK�€tes
€rve-tut d@+ if t •ef=N 4went#-!c#-in t+# a 1-��r stiathut
txarc� fe3}y�arsE�f-tlxirau+.���bui€ctieg-faeeruits-tirr-Wtn�-f;-t+€aialvavHr'-is�nlirt�
�t'I}r �igltt-ti+ter isu�fi>r-i#ta-e1 ' _ at€{��s-i��r*�+�icri-with-tiw
t"44lim+tenH4uny pan len � ois�I ll 11
(s) Cur%c widening shall be constructed ort ttre following roads where curve radii is less than two
hundnxt (200) feet_ Curve widening shall be constructed in coltromnanetr with Section 4. Paragraph F or
the t'ity Standard Specifications, or as approved by the City Engineer, }Haus ibr the curve widening shall
1',�! .uhmitted for review and approval by the City Engineer prior to the approval of the Master
L)ouclopment flan.
a. Laurel Avenue from Santa Lucia Road to Cenugal Road.
b. Conegal Road from Laurel Avenue to the project boutniary.
The curve widening shall he constructed wheat the AD L' on Laurel Avenue reaches five hundred
(inti) vcIntles per day, with the development of til thirty-eighth loi in Phase 2, or within three (3) years
of the issuance of building permits for Phase 2, whichever is earlier.
(xi) A three-foot snide Class lI baic or other all weather surface walkway shalt be provided along one
side: C'enega€ Road from the pmject boundary to Laurel Avenue and along Laurel Avenue fmm ('ernegal
Road to Santa Lucia Road, or as approved by the City Engineer. Improvement plans for the walkways
shall be submitted for review and approval by the City Engineer and Community Development Director
prior to approval of the Mwj,:r €)ocloprncnt plan,
' ne three-foot-wide pedestrian walkway shall be constructed when the AD"T' on Laurel Avenue
reaches five hundred (300) vehicles per day. with the development ofthe thirty-eighth lot in Phase 2, or
within three (3) years ofthe issuance of building permits for Phase 2, whichever is earlier.
(4) Drainage.
(i) All drainage improvements shall be constructed in accordance with the City Engineering
Department Standard Specifications and Drawings or m directed by the City Engineer.
(ii) A gradin} and drainage plan for each lot, prepared by a registered civil engineer, shall be
submitted for inview and approval by the City Engineer prior to the issuance of building permits. A
registered cis it engineer shall provide a written statement that ail work has been completed and is in full
compliance with the approved plans and the uniform Building Code (URC),
(iii} An erosion control plan addressing interim erosion control measures to be used during the
i;onstruction shall be submitted for review and approval by the City Engineer, Erosion control measures
,hall be ill-place between October Ist and April Ist.
Prior to issuance or Grading Permits, and ifrequired tinder the Clean Fater Act (CWA), the
applicant shall obtain tite necessary pennies in compliance with the requirements ofthe National Pollutant
Discharge Elimination System (NPDES).
(5) utilities.
(i) All relocation andloralteration ofcxisling utilities shall be the responsibility ofthc applicant.
(€i) `Phe applicant shall submit a composite utility plan signcd and approved by a representative for
catch public utility company along with the improvement plans.
f
Exhibit G Proposed amendments to PD -11 showing deletions (in strikeout) and
additions (in underline) format
(NO The eristin¢ l4q -turn lanes shall be eenswdete on State Highway 41 for eastbound traffic
entering beth -Los Altos Road shall be brought into conformance with current Caltrans Design Standards
etv lefr-tura lane improvements shall be consiructed on State Highwav 41 for eastbound traffic entering
the driveivay serving lots 109-112. and the dfiyewa serving rot !09 112. r 4 plans for- t
left tarn lane shall be t •f _ and a ..l r_y Caltrans and the Gity E_ - e- -
apppe,'. a efrhe Master- Development Plan. Prior to the issuance ofanv additional buildingpermits for
lrousin anits after the vear 2013 • the Applicant shall provide the Cih, ivith updated financial assurance
mechanisins for the left -rum lane improvements at Los Altos Road Ti left tum lanes for- Los Altos
building,Read shall be censtFuetedwhen the ADT- on Los Altos Read r-eaehes five hundred (5 00)vehie4es per- day7.
with the dev, elopment of -the twenty seventh lot in Phase i. orwithin three (3) years of the issuanee 0
ennits fer Phase 1. whichever- is eifffier-._
Tirning: (Los Altos Road) The irnproventents necessary to bring the existing left -turn lane on
Stare Hizinvav 41 for eastbound tra rc entering LosAltos Road into conformance with current
Caltrans Design Standards shall be constructed svithin three (3) years of the effective date ofthe
ordinance anrendnient or prior ro the issuance of the 52"d housing unit buildinizpermit whichever
occurs first. No additional housing unit buildiragperniits will be issued ifeither ofthe preceding
timing requirements is triggered.
(Lots 109-112)The nett left -turn lanes improveinents for eastbound traffic on State highivav 41
entering the driveways accessing Lots 109-112 shall be constructed priorto the issuance ofthe
fir -sr housinzunitbuilding for with the developmente any portion of Lots 109 -112. -,unless
Caltrans rrrodifies or eliminates the left -tura lane requireinents for the drive ay accessing_ Lots
109-112.
(y) The er.isting residential driveivay approach ser vIng lots 109-112 shall be brought zip to current
Caltrans Design ;Standards.
Tiinin:z: Prior to the issuance ofthe first housing unit buildingpei7nit for any portion ofLots 109-
112. Tr-efiige lanes shall be str e;ed f ehiele va x5 left r Stat Highway
h a! from bLos Altos Read and the dfiveway t
Lots !09 112. Improvement plans fer- the r-efuge lanes shaR b
b
subng4ted fe-F Feview and appr-eval by Gal4r-ans and the City Engineer prior- te approval of the Mast
. tDln
for-
Los Alto s Read shall be constraeted when the ADT- on Los Altos Reader within three (3) years of the issuanee of -building per-ffiks foi: Phase 1. w-hiehever- is ear4ier-.
The vehic4e
5
aecessing Lots 109-112 shall be eenstmeted with the
deNrelopment any portion fr r 109 112
(vii) T41e A pl,?ccrble sight distance improvements in accordance iyitlt current Caltrans Design Standards
equired to aehieve aMe minimum -9 Wan 9 KPq; lii:ed sigh; diB ge ef;&tL five hundfed fifty @4 5 0) feet o
shall be constructed at the intersection of Los Altos Road and State Highway 41, and at the
intersection of the driveway serving Lots 109-112 and State Highway 41. Improvement plans for the -Ate
,�h distance improvements shall be submitted for review and approval by Caltrans and the City
Engineer=p .- to appi:, ..,1 e f -the r asterDewelopEaent plan The site distanee�Fevementsfef Les
Altes Read shaN be eonstpaetedwhent-he ADT- eii Los Altos Road reaches five hundred (500) vehicles
pefdzy-,with the .7 t - r -- r ft71 twenty se.-e.,tt.lot i, Dbase 7 or-w'tt ' thfee (3) years f w
;ec_tan ofbuilding r "t sf i, D 7 7.' t.ever is earlie
Tinting- Interim sSight distance irnprovernents miainkmenee in eenfernia1wze is,A Gat�
'""lord for the current configurationoftlteHiley41arzdLostAltosRoad
intersection shall be completed u4thin six months o the effective date of this ordinance
rrnrendntent. Qnizoiniz into; ant sight distance maintenance shall be contpletedee er by
=September 15ti each near thereafter and until the final intersection irnproi!ements are completed
and accepted bv Caltrans Interim sftht distance intprovenrents and on offing interim
rnainte: }ance shall be completed as permitted by, Caltrans and relevant permitting agencies and
ssrbiect to the City Engineer's verification The CitvEngineer may stop issuance o building
permits for housing units if the sight distance maintenance is not conducted
Final s>SiUht distance improvements for the HijzInvoy 41 andLos Altos Road intersection shall be
constructed toaetheru4M the final intersection improvements ti+ithin three (3) years of the
effective date ofthis ordinance amendment or prior to the issuance of buildingpermits for the
.32"61 housing unit it-hichever occurs first No additional housink unit building permits will be
issued ifeitlrer of theprec-edinz timing requirements is trig ered
Thet-sight distance improvements for the driveways accessing Lots 109-112 shall be
constructedprior to the issuance of the_irst housing unitperntit for with the development o any
portionof Lots 109-112.
(viii) Advisory= and warning signage shall be installed along State Highway 41 to advise drivers ofthe
approaching intersection with Los Altos Road and the driveway serving Lots 109-112. Signage shall be
desi ned and installed to comply -with, and as allgu,ed by, Caltrarz=s Standards. _
lid. Improvement plans for the interim and final advisoryand warningsignage i ovement-s
shall be submitted for review and approval by Caltrans and the City Engineer
Master el,..V,m� Dt
r =�A Prior to the issuance ofanv additional housing unit building permits after the
year 201 the applicant shall provide updated financial assurance inechanisms for the finaladvisoly and
warnint Sia, na e innyroVententS The si n e is f - os Alt R a L to l_
e eenstFuetedwh
the ADT- en Los 2IAtes Read reaekes -&-eliund-r-eEI(500)vehic4espffda),:,A,itht-heElevelopmeiitof-th
twentv seveiath lot in Phase 1.
Tuning,: inferirnn acli-i.sor-l- andrt-ai7iing signage iirzprovenzents for Los Altos road shall be
constricted within .six months of the effective date of this ordinance amendmerzt. Ivo additional
buildin.,z permits for housing units will be issued after sa months of the efectite date ofthis
ordinance amendment -if the precedine tinning requirement is not satisfied unless the Citt•
Ern vneer and Counnunitl-Development Director zrant a bine extension. Time extension re nests
will only be considered for delays that are outside ofthe applicant's control Final advisoiv and
warning stffnage improvements shall be constructed within three (3) years ofthe effective date of
this ordinance annendmentor prior to the issuance ofbizildingpennits for the 52"housing unit
ulhlcherer occurs first No additional housing unit budding permits it ill be issued i either of the
receding tuning reaunrentents is triggered � u. . t es des 'hed in
The advisory and warning signage improvements for the driveways accessing Lots 109-112 shall
be constnictedrior to the issuance of rhe first housinz unitperniit for withthe develepme334 of
any portion ofLots 109-112.
%) 94 -WA right turn taper in compliance ztIth the Caltrans Hiehiaav
Desi,en Manual Chapter 400 Intersections at Grade Figure 40.5.7, oras directed by Caltrans, shall be
constructed on State Highway 41 for westbound traffic entering both -Los Altos Road.Aq4 the T
s ink Lets-} _ 11 _'.Improvement plans for the right -turn lanes-ta er shall be submitted for review and
approval by Caltrans and the City Engineer. „ , r t Dlan—Prior to
the issuance ofanv additional housing unit building emiits after the iear 2013: the applicant shall
proilde updated financial assura=nce niechanisms for the right turn taven
Timinz: A ri ht-rurrn taper, in compliance tt-ith the California Caltrans Hi¢hitwyDesign i2anual.
Chapter 400 Intersections at Grade Figure 403 7 or as directed by Caltrans for Los Altos Road
shall be constructed within three (3) vears of the effective date of this ordinance annendnzentor
Prior fo the issuance ofbuildingpernnits for Me j2” housing unit whicheter occurs first NO
addition=al housing unit buildingpennits 1011 be issued if either of the preceding timing
requirements is triggered
The right tum lane fk Los Altos Read shall be eenstpaetedlvhen flip. IA DT OR Los Mtes Read reaches
five hund
three (3)
The r-ight tuF* lane fer- the driveways aecessing Lets 109 112 shall be eenstruetedA4th
deE°elopmeRtofaii�,pertien-efT=ets jog 112