Reducing Traffic Congestion

CCTA is the county’s designated Congestion Management Agency (CMA), responsible for putting programs in place to keep traffic levels manageable. Currently, Contra Costa County’s transportation needs significantly exceed available revenue to meet those needs, and over the next 30 years, our population will continue to grow and that population will have new and additional needs.

To confront this challenge in an efficient and sustainable way, the Contra Costa Transportation Authority engages in funding, planning, and execution for a wide variety of projects and programs to help manage traffic congestion and improve quality of life for commuters and residents.

These initiatives include the Highway 4 Widening Projects – a six-year effort that will reduce congestion and improve public transit access by doubling highway capacity and adding a new BART extension, improve traffic flow, and reduce congestion along major highways, including I-80, I-680, SR 4, SR 24, and SR 242.

In addition, CCTA is working to further smooth traffic in Contra Costa County by implementing advanced traffic management programs that encourage the use of connected vehicles and/or autonomous (driverless) vehicles.