Bay Area Rapid Transit District

The San Francisco Bay Area Rapid Transit District (abbreviated BART) is a special-purpose district body that governs the Bay Area Rapid Transit system in the California counties of Alameda, Contra Costa and San Francisco.

[2] The San Francisco Bay Area Rapid Transit District (occasionally abbreviated in early years to BARTD) was created in 1957[3] to provide a transit alternative between suburbs in the East Bay and job centers in San Francisco's Financial District as well as (to a lesser extent) those in Downtown Oakland and Downtown Berkeley.

San Mateo opted out in 1962, preferring to utilize funds to build its freeway and expressway system.

Marin was also concerned by ongoing debate about the feasibility of running trains across a lower deck of the Golden Gate Bridge.

The Silicon Valley BART Extension, managed by the VTA, is a 6-mile extension of BART service to San Jose and Santa Clara in Santa Clara County.

A map of California, with the Bay Area Rapid Transit District highlighted in blue, non-member counties served by BART in yellow, and the former (unserved) member county, Marin , in red.
The word "BART" in black letters above a dark blue lowercase letter "b" partially superimposed on a lowercase "a" of a lighter color blue with a clear background