Transportation planning and programming in San Mateo County is undertaken by several agencies with sometimes overlapping jurisdictions and responsibilities. The San Mateo County Transit District (SamTrans) oversees the County’s bus transit system, the Peninsula Corridor Joint Powers Board (JPB) conducts planning and operations for the Caltrain commuter rail system, and the San Mateo County Transportation Authority (SMCTA) is responsible for planning and funding transportation improvements associated with the countywide transportation sales tax reauthorized by voters in 2009. The County of San Mateo and 20 cities and towns within its boundaries are also each responsible for planning and implementing improvements to the local roadways within their own jurisdictions.
As the designated Congestion Management Agency for San Mateo County, C/CAG is primarily responsible for administering the State-mandated Congestion Management Program and preparing the Countywide Transportation Plan, which establishes a long-range transportation vision for the county and informs the Regional Transportation Plan and Sustainable Communities Strategy prepared by the Metropolitan Transportation Commission (MTC) and Association of Bay Area Governments (ABAG). C/CAG also partners with local jurisdictions and other transportation agencies to develop transportation plans and studies for areas and projects with countywide and regional significance.
San Mateo County Comprehensive Bicycle and Pedestrian Plan 2011
Resource Guide for the Education, Promotion, Funding and Design of Pedestrian and Bicycle Facilities
San Mateo County Priority Development Area (PDA) Investment and Growth Strategy
San Mateo County PDA Investment & Growth Strategy Update – 2017
San Mateo County PDA Investment & Growth Strategy – 2014
Plan Bay Area 2040
Community Based Transportation Plans
| Updated Plans | Prior Plans | |
| San Bruno / SSF | San Bruno/South San Francisco Community-Based Transportation Plan – 2026 | San Bruno/South San Francisco Community-Based Transportation Plan – 2012 |
| Daly City / Bayshore | Daly City Community Based Transportation Plan – Sept 2023
Daly City Community Based Transportation Plan – 2023; APPENDICES |
Bayshore Community-Based Transportation Plan – 2008 |
| South East San Mateo / East Palo Alto | Southeast San Mateo County Community Based Transportation Plan – 2023
Southeast San Mateo County Community Based Transportation Plan – 2023; APPENDICES |
East Palo Alto Community-Based Transportation Plan Final with Appendices |
| North Central San Mateo | ||
| San Mateo County Transportation Plan for Low-Income Populations |
Intelligent Transportation System Plan
Countywide Transportation Plan
Transportation Studies












