Metropolitan Atlanta Rapid Transit Authority

Metropolitan Atlanta
Rapid Transit Authority
MARTA Rail System
System map
Overview
LocaleAtlanta, Georgia
Transit type
Number of lines
  • Bus: 100
  • Bus rapid transit: 1 (2025)
  • Rail rapid transit: 4
  • Streetcar: 1
Number of stations38 (rail)
12 (streetcar)
Daily ridership
  • 188,900 (total, weekdays, Q1 2025)
  • 98,300 (bus, weekdays, Q1 2025)
  • 87,100 (rail, weekdays, Q1 2025)
  • 800 (streetcar, weekdays, Q1 2025)
Annual ridership
  • 65,190,800 (total, 2024)
  • 34,615,600 (bus, 2024)
  • 29,416,400 (rail, 2024)
  • 342,700 (streetcar, 2024)
HeadquartersAtlanta, Georgia
Websiteitsmarta.com
Operation
Began operationFebruary 17, 1972 (1972-02-17) (buses)
June 30, 1979 (1979-06-30) (rail)
Technical
System length48 mi (77 km)
Track gauge4 ft 8+12 in (1,435 mm) standard gauge
ElectrificationThird rail, 750 V DC (rapid transit)
Overhead line, 750 V DC (streetcar)
Top speed70 mph (110 km/h)

The Metropolitan Atlanta Rapid Transit Authority (MARTA /ˈmɑːrtə/) is the principal public transport operator in the Atlanta metropolitan area. Formed in 1971 as strictly a bus system, MARTA operates a network of bus routes linked to a rapid transit system consisting of 48 miles (77 km) of rail track with 38 subway stations. MARTA's rapid transit system is the eighth-largest rapid transit system in the United States by ridership.

MARTA operates almost exclusively in Fulton, Clayton, and DeKalb counties, although they maintain bus service to two destinations in neighboring Cobb County (Six Flags Over Georgia and the Cumberland Transfer Center next to the Cumberland Mall), while Doraville station serves portions of Gwinnett County via Ride Gwinnett buses. MARTA also operates Mobility, a separate paratransit service for disabled customers.

In 2024, the entire system (bus and subway lines) had 65,190,800 rides, or about 188,900 per weekday in the first quarter of 2025.

After 2000, expansion of the MARTA system stalled, after the completion of three new rail stations north of the Interstate 285. In 2016, Atlanta voters approved a historic sales tax increase to raise $2.7 billion over 40 years, in order to significantly expand the MARTA system (dubbed the More MARTA program), including 29 miles of light rail transit, 13 miles of bus rapid transit, arterial rapid transit, transit centers and multiple infill MARTA stations. Since its inception, the More MARTA program has been criticized for slow progress, delays, and reversals on executing its list of expansion projects.