Bay Area Rapid Transit
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A Pittsburg / Bay Point bound train at Walnut Creek in July 2008.
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| Overview | |||
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| Locale |
San Francisco Bay Area Counties: Alameda, Contra Costa, San Francisco, and San Mateo |
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| Transit type | Rapid transit | ||
| Number of lines | 6 lines
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| Number of stations | 45 (plus 5 under construction, 9 planned/proposed) |
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| Daily ridership | 433,394 weekdays 201,397 Saturdays 143,837 Sundays (FY 2016 average) |
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| Annual ridership | 128.5 million (FY 2016) | ||
| Chief executive | Grace Crunican | ||
| Headquarters |
Kaiser Center Oakland, California |
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| Website | Bay Area Rapid Transit | ||
| Operation | |||
| Began operation | September 11, 1972 | ||
| Operator(s) | San Francisco Bay Area Rapid Transit District | ||
| Character | Fully grade separated with at-grade, elevated and subway sections | ||
| Number of vehicles | 662 total, with 535 in service; excluding AGT fleet | ||
| Train length | 4-10 cars (710 feet (216 m) max) 3-cars (AGT) |
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| Headway | 15–20 mins (by line); 3–8 mins (between trains at busiest stations) | ||
| Technical | |||
| System length | 104 mi (167 km) (rapid transit) 3.2 mi (5.1 km) (AGT) |
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| Track gauge | 5 ft 6 in (1,676 mm) | ||
| Minimum radius of curvature | 120 m (390 ft) | ||
| Electrification | Third rail, 1,000 V DC | ||
| Average speed | 35 mph (56 km/h) | ||
| Top speed | 80 mph (130 km/h); 70 mph (110 km/h) during normal operations | ||
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Bay Area Rapid Transit (BART) is a public transportation system serving the San Francisco Bay Area. The rapid transit elevated and subway system connects San Francisco with cities in Alameda, Contra Costa, and San Mateo counties. BART operates 5 routes on 104 miles (167 km) of track connecting 44 stations, plus a 3.2-mile (5.1 km) automated guideway transit line to the Oakland International Airport which adds a 45th station. A spur line in eastern Contra Costa County will utilize other rail technologies. With an average of 433,000 weekday passengers and 128.5 million annual passengers in fiscal year 2016, BART is the fifth-busiest heavy rail rapid transit system in the United States. The system's acronym is pronounced "Bart," like the name, and not as a spelled-out initialism (i.e., "B-A-R-T").
BART is operated by the San Francisco Bay Area Rapid Transit District, formed in 1957. As of 2017[update], it is being expanded to San Jose with the consecutive Warm Springs and Silicon Valley BART extensions.
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