Bay Area Rapid Transit

"BART" redirects here. For other uses, see BART (disambiguation).

Bay Area Rapid Transit (BART)
BART train in southern San Francisco
Overview
Locale	San Francisco Bay Area (Alameda, Contra Costa, San Francisco, San Mateo, and Santa Clara counties)
Transit type	Rapid transit (main system) Hybrid rail (eBART) AGT (Oakland Airport Connector)
Number of lines	5 rapid transit lines (1 with diesel light rail extension) 1 AGT line
Number of stations	50 (7 planned/proposed)
Daily ridership	204,800 (weekdays, Q2 2026)
Annual ridership	55,483,900 (2025)
Chief executive	Robert Powers
Headquarters	2150 Webster Street Oakland, California
Website	bart.gov
Operation
Began operation	September 11, 1972 (1972-09-11)
Operator	San Francisco Bay Area Rapid Transit District
Character	Fully grade separated with at-grade, elevated and underground sections
Number of vehicles	805 total, with 700+ available for service; with 8 DMU vehicle sets (eBART); and 4 AGT vehicle sets
Train length	5–10 cars 2-car married pair (DMUs) 3 cars (AGT)
Headway	10 minutes (Yellow Line), 20 minutes (other lines)
Technical
System length	131.4 mi (211.5 km)
Track gauge	Main system: 5 ft 6 in (1,676 mm) eBART: 4 ft 8+1⁄2 in (1,435 mm)
Minimum radius of curvature	120 m (394 ft)
Electrification	Third rail, 1 kV DC
Average speed	35 mph (56 km/h)
Top speed	80 mph (130 km/h) (maximum) 70 mph (110 km/h) (typical)
System map eBART Maintenance Yard Antioch Pittsburg Center Pittsburg/​Bay Point ⇋ Diablo Range North Concord/​Martinez Concord Richmond Maintenance Yard Richmond Concord Train Yard   El Cerrito del Norte Pleasant Hill/​Contra Costa Centre El Cerrito Plaza Walnut Creek Contra Costa County Alameda County North Berkeley Lafayette Downtown Berkeley Orinda Ashby Berkeley Hills Tunnel Rockridge MacArthur ⇋ southbound 19th Street Oakland ⇋ northbound 12th Street Oakland City Center Oakland Wye Lake Merritt West Oakland Oakland Shop Fruitvale Alameda County San Francisco Transbay Tube Coliseum ⇋ San Leandro Creek Muni Metro to 4th & King Doolittle Maintenance and Storage Facility Embarcadero OAK Airport Montgomery Street San Leandro Powell Street Bay Fair ⇋ Civic Center/​UN Plaza Castro Valley Muni Metro to West Portal San Leandro Hills 16th Street Mission West Dublin/​Pleasanton 24th Street Mission Dublin/​Pleasanton Glen Park San Lorenzo Creek Hayward ⇋ Balboa Park South Hayward San Francisco San Mateo County Daly City Hayward Maintenance Complex   Union City Alameda Creek Colma Fremont Colma Maintenance Yard Lake Elizabeth tunnel Irvington proposed South San Francisco Warm Springs/​South Fremont Colma Creek Alameda County Santa Clara County San Bruno Calaveras proposed Milpitas SFO Airport Berryessa/​North San José Millbrae San Jose extension 28th Street/​Little Portugal 2036 Downtown San José 2036 2036 Santa Clara Diridon 2036 Newhall Maintenance Facility Key 5 ft 6 in gauge, third rail, 1,000 V DC Standard gauge DMU (eBART) Market Street subway Muni Metro on upper level Cable Liner AGT (OAK) ⇋ Timed transfer between lines All stations are accessible

Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area in California. BART serves 50 stations along six routes and 131 miles (211 kilometers) of track, including eBART, a 9-mile (14 km) spur line running to Antioch, and Oakland Airport Connector, a 3-mile (4.8 km) automated guideway transit line serving Oakland San Francisco Bay Airport. With an average of 204,800 weekday passenger trips as of the second quarter of 2026 and 55,483,900 annual passenger trips in 2025, BART is the seventh-busiest rapid transit system in the United States.

BART is operated by the San Francisco Bay Area Rapid Transit District which formed in 1957. The initial system opened in stages from 1972 to 1974. The system has been extended several times, most recently in 2020, when Milpitas and Berryessa/North San José stations opened as part of the under construction Silicon Valley BART extension in partnership with the Santa Clara Valley Transportation Authority (VTA).