BART

BART
Name	Bay Area Rapid Transit
Locale	San Francisco Bay Area
Transit type	Rapid transit
Began operation	September 11, 1972
System length	131 mi
Stations	50
Ridership	158,700 (weekday, Q4 2023)
Operator	San Francisco Bay Area Rapid Transit District

BART. The Bay Area Rapid Transit system is a heavy-rail public transportation network serving the San Francisco Bay Area. It connects the major urban centers of San Francisco, Oakland, and San Jose with numerous suburban communities across Alameda, Contra Costa, San Mateo, and Santa Clara counties. As one of the United States' most extensive rapid transit systems, it is renowned for its engineering, including transbay underwater tunnels and long aerial structures.

Overview

The system's network spans over 130 miles of track, featuring a distinctive broad gauge and advanced automated train control technology developed in the mid-20th century. Its routes are color-coded, with lines such as the Richmond–Warm Springs and Dublin/Pleasanton–Daly City services crisscrossing the region. Key interchange stations include Embarcadero in San Francisco and MacArthur in Oakland, facilitating connections to other transit agencies like AC Transit and Caltrain. The system is operated by the San Francisco Bay Area Rapid Transit District, a special-purpose district created by the California State Legislature.

History

Planning for the system began in the 1940s, with formal studies conducted by the California Department of Transportation and commissions like the San Francisco Bay Area Rapid Transit Commission. The district was formed in 1957, and construction commenced after voters in the core counties approved a bond measure in 1962. The first revenue service opened on September 11, 1972, connecting MacArthur and Fremont. Major expansions followed, including the opening of the Transbay Tube in 1974, linking Oakland and San Francisco beneath the San Francisco Bay. Later extensions reached San Francisco International Airport in 2003 and Warm Springs in 2017, with ongoing projects pushing toward Downtown San Jose.

System and infrastructure

The infrastructure is notable for its engineering feats, including the double-decked Transbay Tube and the Berkeley Hills Tunnel. Trains operate on 5 ft 6 in broad gauge rail, a specification chosen for stability, and are powered by a 1000-volt direct current third rail. The system utilizes an automated train control system developed by Westinghouse Electric Corporation, allowing for high speeds and precise operations. Significant maintenance facilities are located at the Hayward Maintenance Complex and the Richmond Yard. The rolling stock has evolved through several generations, from the original cars built by Rohr Industries to the modern Fleet of the Future manufactured by Bombardier Transportation.

Operations

Daily service operates from approximately 4 a.m. to midnight, with five to twenty-minute headways depending on the line and time of day. The system integrates with other regional services through coordinated schedules and shared fare cards like the Clipper card. Security and policing are provided by the BART Police Department, an accredited agency. Major operational events have included service during the 1989 Loma Prieta earthquake and the system's role in transporting attendees to events at Levi's Stadium and Oracle Park. Ridership patterns show heavy usage for commutes to downtown San Francisco and Oakland.

Expansion and future projects

The most significant current project is the Silicon Valley BART extension, which is extending service from Warm Springs through Downtown San Jose to Santa Clara, in partnership with the Santa Clara Valley Transportation Authority. Other initiatives include the eBART extension to Antioch using diesel multiple unit technology and studies for a second transbay crossing. The district is also undertaking major modernization programs, such as the replacement of the original train control system and station improvements across the network, funded in part by measures like Regional Measure 3.

Impact and reception

The system has profoundly shaped regional development, encouraging transit-oriented growth in cities like Walnut Creek and Fremont. It is credited with reducing traffic congestion on key bridges like the San Francisco–Oakland Bay Bridge and supporting the economic vitality of urban cores. The system has faced criticism over issues of cleanliness, fare evasion, and safety, leading to initiatives like the BART Board of Directors's "BART Reimagined" plan. It has been featured in numerous cultural works, including films like *The Pursuit of Happyness* and songs by artists such as MC Hammer. Its iconic map and station architecture, like the vaulted ceiling of Powell Street, are recognized symbols of the San Francisco Bay Area.

Category:Rapid transit in the United States Category:Transportation in the San Francisco Bay Area Category:Railway companies established in 1972