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  • unincorporated San Mateo County map

Unincorporated San Mateo County Active Transportation Plan

On February 9, 2021, the San Mateo County Board of Supervisors approved the Unincorporated San Mateo County Active Transportation Plan (SMC ATP), a comprehensive framework to guide the development of active transportation projects and programs for walking, bicycling and other forms of human powered movement for people of all ages and abilities throughout unincorporated County communities.

The Plan builds on the County’s ongoing work across multiple County departments, adjacent jurisdictions and other public agencies to help ensure safe and seamless connected networks. Implementation of the program and policy recommendations included in the SMC ATP will support the development of a safer, more connected walking and biking network throughout the County’s unincorporated communities.  It will also contribute to the County’s progress on goals relating to climate change and a reduction in greenhouse gas (GHG) emissions, and social equity, addressing mobility needs of our most vulnerable community members.

Click the links below to learn more about the 2021 Unincorporated San Mateo County Active Transportation Plan:

At-a-Glance

  • The Plan is oriented around five goals: access, safety, equity, mode share, and flexibility. These goals were integrated into the Plan development process and will help guide the implementation of Plan recommendations to improve walking and bicycling conditions throughout the unincorporated areas of the County.

    • Access
      transportation access

      Access

      Improve walking and bicycling facilities so that residents and visitors of all ages and abilities can comfortably access key destinations.

    • Safety
      transportation safety

      Safety

      Improve safety for people walking and bicycling.

    • Equity
      transportation equity

      Equity

      Provide equitable access to transportation investments and improve mobility for all.

    • Mode Share
      transportation mode share

      Mode Share

      Increase the share of people walking, bicycling, and accessing transit for all trip purposes to reduce congestion and greenhouse gas emissions, and to improve public health outcomes.

    • Flexibility
      transportation flexibility

      Flexibility

      Create a resilient and flexible transportation network that supports a variety of modes of transportation and can adapt to changes in land use, infrastructure, and transportation technologies over time, including new micro- mobility solutions.

  • This Plan seeks to improve walking and bicycling in unincorporated San Mateo County by identifying hundreds of projects, as well as accompanying policies and programs. Project recommendations are made to improve connections to various destinations and respond to community needs to create a safe, connected on-street active transportation network. The graphic below highlights some of the types of recommendations in the Plan.

    Unincorporated San Mateo County Active Transportation Plan Recommendations Summary

Plan Progress

Building on Plan Recommendations

Since the completion of the SMC ATP in early 2021, the County has made significant strides toward the implementation of Plan recommendations. Highlights of implementation progress include the successful award of numerous grants and ongoing coordination with the County’s street resurfacing program:

Infrastructure Projects
  • A new buffered bikeway on 5th Avenue in North Fair Oaks implemented as part of a planned road resurfacing project in fall of 2021.
  • $1.6 million from a Metropolitan Transportation Commission (MTC) Safe and Seamless Mobility Quick Strike grant for pedestrian crossing and traffic calming improvements on 87th Avenue in Broadmoor.
  • $250,000 from a Caltrans Highway Safety Improvement Program (HSIP) grant for pedestrian crossing improvements at schools in Broadmoor, El Granada and the San Mateo Highlands.
  • $1.4 million as part of an Affordable Housing Sustainable Communities (AHSC) grant that included bicycle and pedestrian facilities and amenities in North Fair Oaks.
  • $700,000 from a San Mateo County Transportation Authority (SMCTA) Bicycle and Pedestrian Program grant to fund environmental work and final design to advance the Santa Cruz/Alameda de las Pulgas Corridor Improvements project in unincorporated West Menlo Park.
Planning Projects
  • Over $350,000 from a Caltrans Sustainable Communities Transportation Planning grant for the study of a new bicycle and pedestrian crossing of the Caltrain tracks and corresponding bicycle and pedestrian connections in North Fair Oaks to improve safety and mobility for people walking and biking. View North Fair Oaks Railroad Crossing Study
  • $500,000 from a San Mateo County Measure K allocation to fund a study of Coleman and Ringwood Avenues in unincorporated Menlo Oaks, as part of a partnership with the City of Menlo Park, to improve safety and mobility for people walking and biking. View Coleman and Ringwood Avenues Study

Get Involved 

Stay up to date on Active Transportation Plan project implementation

  • Subscribe to Active Transportation Updates
  • Tune in to the San Mateo County Bicycle and Pedestrian Advisory Committee Meetings.