06 - June 12, 2025 Collection of City-wide Traffic Data
CITY COUNCIL INFORMATIONAL MEMORANDUM
June 12, 2025
To: Cupertino City Council
From: Chad Mosley, Director of Public Works
Re: Collection of City-wide Traffic Data
Background
At the May 15, 2025, City Council meeting, Council requested that staff consider the
preparation of a traffic study that would collect City-wide traffic data. The City’s latest
data was collected prior to the COVID-19 pandemic, and updated data would be
beneficial in ongoing transportation related initiatives.
Description
The data to be collected would consist of an Engineering and Traffic Survey, in
accordance with methods determined by the Department of Transportation, which is
primarily used to establish speed limits. The City would also collect Average Daily
Traffic (ADT) volumes along various street segments, as well as peak hour traffic counts
at key intersections. An Engineering and Traffic Survey collects:
• Prevailing speeds, as determined by traffic engineering measurements;
• Accident records;
• Highway, traffic, and roadside conditions not readily apparent to the driver.
The estimated cost to collect and compile this data is approximately $180,000, and would
take approximately 8 months to contract, collect, and compile the data.
The data would provide valuable information that would be used to inform other
transportation related initiatives over the next few years.
Sustainability Impact
No sustainability impact.
Fiscal Impact
The Engineering and Traffic Survey, including ADT, is estimated to cost $180,000.
_____________________________________
Prepared by: David Stillman, Transportation Manager
Reviewed by: Chad Mosley, Director of Public Works
Approved for Submission by: Tina Kapoor, Acting City Manager
Attachments:
A – Street Segments to be Surveyed
B – Intersections to be Surveyed
ATTACHMENT A
Street Segments to be Surveyed
Street Name Direction Limit 1 Limit 2
Bandley Alves Drive Stevens Creek Boulevard
Bandley Valley Green Drive Alves Drive
Blaney Avenue Beekman Place Stevens Creek Boulevard
Blaney Avenue Homestead Road Beekman Place
Blaney Avenue Stevens Creek Boulevard Bollinger Road
Bollinger Road De Anza Boulevard Miller Avenue
Bollinger Road Miller Avenue East City Limit
Bollinger Road Western City Limit De Anza Boulevard
Bubb Road McClellan Road Rainbow Drive
Bubb Road Stevens Creek Boulevard McClellan Road
Cristo Ray Drive Foothill Boulevard West City Limit
De Anza Boulevard northbound Homestead Road Stevens Creek Boulevard
De Anza Boulevard southbound Homestead Road Stevens Creek Boulevard
De Anza Boulevard northbound Stevens Creek Boulevard Bollinger Road
De Anza Boulevard southbound Stevens Creek Boulevard Bollinger Road
De Anza Boulevard northbound State Route 85 Prospect Road
De Anza Boulevard southbound State Route 85 Prospect Road
Finch Avenue Stevens Creek Boulevard Phil lane
Foothill Boulevard Stevens Creek Boulevard McClellan Road
Foothill Boulevard northbound Starling Drive Stevens Creek Boulevard
Foothill Boulevard southbound Starling Drive Stevens Creek Boulevard
Homestead Road Western City Limit Mary Avenue
Homestead Road Mary Avenue De Anza Boulevard
Homestead Road De Anza Boulevard Wolfe Road
Homestead Road Wolfe Road East City Limit
Mary Avenue Stevens Creek Boulevard Meteor Drive
McClellan Road Foothill Boulevard Clubhouse Lane
McClellan Road Clubhouse Lane Bubb Road
McClellan Road Bubb Road Stelling Road
McClellan Road Stelling Road De Anza Boulevard
Miller Avenue Stevens Creek Boulevard Phil Lane
Miller Avenue Phil Lane Bollinger Road
Pacific Drive De Anza Boulevard Blaney Avenue
Prospect Road Stelling Road De Anza Boulevard
Pruneridge Wolfe Road Tantau Avenue
Rainbow Drive Stelling Road De Anza Boulevard
Rainbow Drive Western Terminus Stelling Road
Rodriguez Avenue De Anza Boulevard Blaney Avenue
Stevens Creek Blvd Western City Limit Foothill Boulevard
Stevens Creek Blvd Foothill Boulevard Phar Lap Drive
Stevens Creek Blvd Phar Lap Drive Bubb Road
Stevens Creek Blvd East Bound Bubb Road Stelling Road
Stevens Creek Blvd West Bound Bubb Road Stelling Road
Stevens Creek Blvd East Bound Stelling Road De Anza Boulevard
Stevens Creek Blvd West Bound Stelling Road De Anza Boulevard
Stevens Creek Blvd East Bound De Anza Boulevard Blaney Avenue
Stevens Creek Blvd West Bound De Anza Boulevard Blaney Avenue
Stevens Creek Blvd East Bound Blaney Avenue Portal Avenue
Stevens Creek Blvd West Bound Blaney Avenue Portal Avenue
Stevens Creek Blvd East Bound Portal Avenue Wolfe Road
Stevens Creek Blvd West Bound Portal Avenue Wolfe Road
Stevens Creek Blvd East Bound Wolfe Road Eastern City Limit
Stevens Creek Blvd West Bound Wolfe Road Eastern City Limit
Stelling Road Alves Drive Stevens Creek Boulevard
Stelling Road Homestead Road Alves Drive
Stelling Road McClellan Road Orion Lane
Stelling Road Rainbow Drive Prospect Road
Stelling Road northbound Stevens Creek Boulevard McClellan Road
Stelling Road southbound Stevens Creek Boulevard McClellan Road
Stevens Canyon Road McClellan Road Southern City Limit
Tantau Avenue Bollinger Road Phil lane
Tantau Avenue Homestead Road Pruneridge Avenue
Tantau Avenue Pruneridge Avenue Stevens Creek Boulevard
Tantau Avenue Stevens Creek Boulevard Phil lane
Vallco Parkway East Bound Wolfe Road Tantau Avenue
Vallco Parkway West Bound Wolfe Road Tantau Avenue
Wolfe Road northbound Interstate 280 Stevens Creek Boulevard
Wolfe Road southbound Interstate 280 Stevens Creek Boulevard
Wolfe Road northbound Homestead Road Interstate 280
Wolfe Road southbound Homestead Road Interstate 280
ATTACHMENT B
Intersections to be Surveyed
Street Cross Street
Hwy 280 NB Ramps Wolfe Rd.
Hwy 280 SB Ramps Wolfe Rd.
Stevens Creek Blvd. Wolfe Rd./Miller Av.
De Anza Blvd Prospect Rd.
Hwy 85 SB Ramps De Anza Blvd
Hwy 85 NB Ramps De Anza Blvd
De Anza Blvd Bollinger Rd.
De Anza Blvd Stevens Creek Blvd.
Hwy 280 SB Ramps De Anza Blvd.
Hwy 280 NB Ramps De Anza Blvd.
De Anza Blvd Homestead Rd.
Stevens Creek Blvd. Stelling Rd.
Stevens Creek Blvd. Hwy 85 SB Ramps
Stevens Creek Blvd. Hwy 85 NB Ramps
De Anza Blvd McClellan Rd/Pacifica Dr