Washington Metropolitan Area Transit Authority in the context of "Potomac Avenue (WMATA station)"

The Washington Metro, often abbreviated as the Metro and formally the Metrorail, is a rapid transit system serving the Washington metropolitan area of the United States. It is administered by the Washington Metropolitan Area Transit Authority (WMATA), which also operates the Metrobus service under the Metro name. Opened in 1976, the network now includes six lines, 98 stations, and 130 miles (210 km) of route.

Metro serves Washington, D.C. and the states of Maryland and Virginia. In Maryland, Metro provides service to Montgomery and Prince George's counties; in Virginia, to Arlington, Fairfax and Loudoun counties, and to the independent city of Alexandria. The system's most recent expansion, which is the construction of a new station (and altering the line), serving Potomac Yard, opened on May 19, 2023. It operates mostly as a deep-level subway in more densely populated parts of the D.C. metropolitan area (including most of the District itself), while most of the suburban tracks are at surface level or elevated. The longest single-tier escalator in the Western Hemisphere, spanning 230 feet (70 m), is located at Metro's deep-level Wheaton station.

Ballston–MU station is a side-platformed Washington Metro station in the Ballston section of Arlington County, Virginia. The station opened on December 1, 1979, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). The station is part of the Orange and Silver Lines and serves the transit-oriented community of Ballston, Ballston Quarter, and Marymount University (MU).

Ballston–MU is also a central Metrobus transfer station. The station entrance is at North Fairfax Drive and North Stuart Street, near Wilson Boulevard and North Glebe Road. West of this station, the tracks rise above the ground inside the median of Interstate 66.

Metrobus is a bus service operated by the Washington Metropolitan Area Transit Authority (WMATA), serving Washington, D.C. and parts of Maryland and Virginia in the Washington metropolitan area. Metrobus operates local, limited-stop, and bus rapid transit services within its service area, complementing the Washington Metro and multiple independent bus operators. Its fleet consists of 1,595 buses, covering an area of 1,500 square miles (3,900 km).

Metrobus began operation in 1973, as the successor to four failing privately owned bus companies. In 2024, the system had a ridership of 116,491,700, or about 363,400 per weekday as of the third quarter of 2025.

Potomac Yard station is a Washington Metro station in Alexandria, Virginia, United States. It is operated by the Washington Metropolitan Area Transit Authority (WMATA), serving both the Blue and Yellow Lines, and opened on May 19, 2023. It is located at Alexandria's 7.5-million-square-foot (700,000 m) Potomac Yard mixed-use development bounded by Richmond Highway (U.S. Route 1) and the George Washington Memorial Parkway. It is the second infill station to be added to the Washington Metro system, after NoMa–Gallaudet U in 2004. It was constructed on the site of Potomac Yard, a former railroad freight yard.

Court House station is an island platformed Washington Metro station in the Courthouse neighborhood of Arlington County, Virginia. The station was opened on December 1, 1979, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Weekday ridership is approximately 7,000 passengers per day. The station serves the Orange and Silver Lines.

Eastern Market station is a Washington Metro station in the Capitol Hill neighborhood of Washington, D.C., United States. The island platformed station was opened on July 1, 1977, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). The station currently provides service for the Blue, Orange, and Silver Lines. The station is located in Southeast D.C. at Pennsylvania Avenue and 7th Street. It is named after the nearby Eastern Market, a historic public marketplace.

Stadium–Armory station is a Washington Metro station in the Hill East neighborhood of Washington, D.C. The station opened on July 1, 1977, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Stadium–Armory serves the Blue, Orange, and Silver Lines. The station was named for its proximity to the RFK Stadium campus and the D.C. Armory.

The station is a transfer station, as this is the last station shared by the three lines before the lines diverge going east.