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. The system itself also serves northern San Mateo County and Santa Clara County; however, these counties have bought into the system and have neither a voting stake nor any representatives in the district proper. The District currently operates 50 stations, 817 rail cars, 131 miles of track (33.5 miles on elevated railway, 65.1 miles of track at-grade and 32.8 miles of subway track.) Provided by Wikipedia