Countywide Transportation Plans | Metropolitan Transportation Commission

Countywide Transportation Plans | Metropolitan Transportation Commission
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Wednesday, March 25, 2026
Update
Countywide Transportation Plans
Some counties develop their own long-range plans – countywide transportation plans – to guide transportation decisions in their communities. MTC helps them with cross-regional coordination.
Credit
Peter Beeler
Because each Bay Area county is unique, there is no “one-size-fits-all” approach to transportation planning. Some counties develop their own long-range plans – countywide transportation plans – which are regularly updated to reflect new priorities and new financial estimates.
These plans serve as essential building blocks for the development of MTC’s larger regional transportation plan,
Plan Bay Area 2050+.
While MTC is
required
by law to adopt a plan, county congestion management agencies (CMAs) develop their plans
voluntarily
. And not all Bay Area counties choose to do so.
Countywide Coordination
MTC has created guidance for consistency between the counties’ transportation planning work and the work of Plan Bay Area.
Read the Guidelines for Countywide Transportation Plans.
Plan Bay Area 2050+
Plan Bay Area 2050+ is the current, long-range regional plan. It charts a course for a Bay Area that is affordable, connected, diverse, healthy and vibrant for all residents through 2050 and beyond.
Strong Participation
County Transportation Agencies (CTAs) in eight of the nine Bay Area counties have adopted countywide transportation plans:
Alameda County Transportation Commission
Contra Costa Transportation Authority
Napa Valley Transportation Authority
San Francisco County Transportation Authority
City/County Association of Government of San Mateo County
Santa Clara Valley Transportation Authority
Solano Transportation Authority
Sonoma County Transportation Authority
MTC works with local CTAs to support their work.
Efficient Planning
MTC works with county transportation agencies to help them reduce duplication of local planning efforts.
Work on countywide transportation plans is coordinated with related work on congestion management plans.
Six of the nine Bay Area counties submit congestion management plans to MTC for approval.
Related Documents
Guidelines for Countywide Transportation Plans
309.58 KB
pdf
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