57th Street–Seventh Avenue

57th Street–Seventh Avenue is an express station on the BMT Broadway Line of the New York City Subway. Located in Midtown Manhattan at the intersection of 57th Street and Seventh Avenue, it is served by the N and Q trains at all times, the R train at all times except late nights, and the W train on weekdays.On the subway map and on announcements, the station is called 57th Street–Seventh Avenue, but is also sometimes called Midtown–57th Street. It is directly adjacent to Carnegie Hall.Station layoutWhen this station opened on July 10, 1919, the BMT Broadway Line had ended north of this station as six trackways, of which only two tracks continued to the 60th Street Tunnel to Queens. The other four trackways, both the express tracks and the outermost trackways curve slightly west before ending, which were a provision for the line to run to Upper Manhattan via Central Park West.With four tracks and two island platforms, this station is the northernmost express station on the BMT Broadway Line. Much of the BMT system is chained from the zero point here. The N, R, and W trains use the local tracks, which continue north under 59th and 60th Streets to Queens, while Q trains and selected rush-hour N trains use the center express tracks to continue north along the BMT 63rd Street Line to Lexington Avenue–63rd Street and the Second Avenue Subway. Before the BMT 63rd Street Line was built in 1989, the express tracks continued as layup spurs north of the station . The express tracks ran for about 400 feet.