Metropolitan Atlanta Rapid Transit Authority

The Metropolitan Atlanta Rapid Transit Authority, more commonly called MARTA, is the principal rapid-transit system in the Atlanta metropolitan area and the ninth-largest in the United States. MARTA operates a network of bus routes linked to a heavy rail rapid transit system consisting of 48 miles (77 kilometers) of track with 38  train stations. As of 2006, the system has an average weekday ridership of 451,064 passengers. The MARTA acronym is pronounced as a single word, not as individual letters.
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