SCC Roads and Airports 3-15-2018 1-24 p.m. RDA ResponseCounty of Santa Clara
Roads and Airports Department
101 Skyport Drive
San Jose, California 95110-1302
1-408-573-2400
March 7, 2018
Office of Community Development
City of Cupertino
10300 Torre Avenue
Cupertino, California 95014
SUBJECT: Notice of Preparation of a Draft Environmental Impact Report
Vallco Special Area Specific Plan — File No. EA -2017-05
To Whom It May Concern:
The County of Santa Clara Roads and Airports Department appreciates the opportunity to comment on the
scope of the DEIR for the Vallco Special Area Specific Plan and is submitting the following comments.
The County understands that the Proposed Area Plan is part of the City's ongoing efforts to implement
the City's General Plan and Housing Element. In August 2014, the County provided comments specific
to the traffic analysis associated with the 2014 DEIR General Plan Amendment, Housing Element
Update, and associated Rezoning Project. A copy of that letter is attached. Under the General Plan DEIR,
the County expressed concerns about traffic impacts at the Lawrence/Stevens Creek intersection and at
Lawrence/I-280.
We presume that traffic impacts identified in the proposed Area Plan DEIR will be similar in nature to
what was identified under the 2014 General Plan Amendment DEIR. Added to that, technical guidance
for implementing Senate Bill 743was issued by the Governor's Office of Planning and Research in
November 2017. To that end, with regards to the transportation analysis, we request that the scope of the
DEIR specifically disclose or discuss:
- The City's intention for designating Infill Opportunity Zones as part of implementing SB 743 (relating
to Vehicle Miles Traveled)
- Whether or not the City considers the proposed Area Plan an Infill Opportunity Zone as part of
implementing SB 743 (relating to Vehicle Miles Traveled)
- Whether or not the City will utilize and report performance metrics, and what metrics if any, to
measure the progress of any transportation demand management programs as they relate to any CEQA
mitigation
- Whether or not the City will require private developers to utilize/report performance metrics, and what
metrics if any, to measure the progress of any transportation demand management programs as they
relate to any CEQA mitigation.
Board of Supervisors: Mike Wasserman, Cindy Chavez, Dave Cortese, Ken Yeager, S. Joseph Simitian
County Executive: Jeffrey V. Smith M
.. As part of the Transportation Analysis, we'd like the DEIR to include the following:
All CMP and non -CMP intersections along Lawrence Expressway from Homestead Road to Saratoga
Avenue, including Lawrence/Stevens CreekI-280 signalized ramps.
All CMP and non -CMP intersections along San Tomas Expressway from Homestead Road to
Moorpark Avenue.
Queuing Analysis at impacted intersections (at intersections described in 1 and 2 above) where added
project trips results in queues beyond existing storage capacity.
The County appreciates the continual cooperation of the City in identifying improvements that would
reduce or minimize impacts to the intersections and roadways as a result of implementation of future
development projects in Cupertino (4.13-56). Any future LOS analysis for specific development projects
should be conducted using County signal timing for County study intersections and the most recent CMP
count and LOS data for CMP intersections. Please contact Ananth Prasad at (408) 494-1342 or
,4nanth.Prasad@rda.sccgov.org for the correct signal timing settings, and current AM and PM peak
counts.
Thank for the opportunity to comment. If you have any questions or concerns about these comments or would
like to discuss, please contact me at (408) 573-2482 or ellen.talbo@rda.sccgov.org.
Sincerely.
Ellen Talbo, AICP
County Transportation Planner
cc: Barry Ng, Deputy Director of Infrastructure Development
Ananth Prasad, County Traffic Engineer