Topic - Bay Area Rapid Transit

Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area. The heavy-rail public transit system connects San Francisco with cities in the East Bay and suburbs in northern San Mateo County. BART operates five lines on of track with 44 stations in four counties. With average weekday ridership of 341,151 passengers, BART is the fifth-busiest heavy rail rapid transit system and one of the quietest in the United States. - Source: Wikipedia