The A-Train is a rapid transit line in the New York City subway system, operated by the Metropolitan Transportation Authority (MTA). It runs from Inwood-207th Street in Manhattan to Far Rockaway-Mott Avenue in Queens, covering a distance of approximately 31 miles. The line is known for its express service, making fewer stops and providing faster travel times for commuters. The A-Train operates on a mix of underground and elevated tracks, serving key neighborhoods and connecting to other subway lines and transportation options. It is one of the busiest lines in the system, providing essential service to areas like Harlem, Brooklyn, and Far Rockaway.