49th Street station (BMT Broadway Line)

49th Street is a local station on the BMT Broadway Line of the New York City Subway. Located at West 49th Street and Seventh Avenue in Midtown Manhattan, it is served by the N train at all times, the R train at all times except late nights, the W train on weekdays, and the Q train during late nights.
Station layout.
This underground station, opened on July 10, 1919, has four tracks and two side platforms. The two center express tracks are used by the Q train at all times except late nights.
49th Street was originally built in the same style as the other BMT Broadway stations but underwent an experimental renovation in October 1973. New tiling of red glazed brick was installed over the original BMT-style tiled walls, reducing the platforms' widths by several inches; in addition, special ceiling soundproofing and terrazzo flooring were installed. Since the renovation, three of the four street entrances have been reconstructed, leaving only the 47th Street exit on the southbound platform with the red brick appearance; additionally, the soundproofing experiment was not repeated at any other station. Additional false brick tiles were added some time after the 1973 renovation, indicating the presence of a station facility. A passageway leading to an exit at West 47th Street and Broadway was also added after the renovation. Also, one of the staircases on the southbound side is walled off, making only one staircase available to the southbound side. Yellow tactile treads on both platforms' edges were installed in 2015.
South of this station, the downtown local track descends slightly before ascending again. This is due to Broadway and Seventh Avenue intersecting at the narrow point of Times Square under 45th Street. As a result, the downtown local track of the BMT Broadway Line has to cross beneath the uptown local track of the IRT Broadway–Seventh Avenue Line.
Exits.
There are four sets of platform-level fare controls, with no crossover or crossunder. Each platform has a full-time booth at the north end (49th Street) and a part-time booth at the south end (47th Street). Only the northbound platform is ADA-accessible. An elevator was constructed in conjunction with a new office tower at the northeast corner of West 49th Street and Seventh Avenue. The elevator conceals an out-of-system underground passageway leading to Rockefeller Center and the 47th–50th Streets station on the IND Sixth Avenue Line.