This is a two-level station, with two tracks on each level and two
island platforms, one over the other. The lower level serves trains headed
railroad north (to
Central Park West for trains from the
IND Sixth Avenue Line, to
Queens for trains from the
IND Eighth Avenue Line). The upper level is the reverse, serving trains headed railroad south (toward
Lower Manhattan). Each level allows
cross-platform interchange between the two lines. Trains run on the
starboard side on the upper level and on the
port side on the lower level. The
BMT Broadway Line passes overhead near the west end of the station; this crossing is visible in the ceiling and supporting columns. The
D and
E trains serve the station at all times, while the
B train serves the station on weekdays during the day. The B and D trains use the Sixth Avenue Line tracks, and the E train uses the Queens Boulevard Line tracks. The next stops for trains are
50th Street to the south and
Fifth Avenue/53rd Street to the north, while the next stops for trains are
59th Street–Columbus Circle to the north and
47th–50th Streets–Rockefeller Center to the south. The station serves two distinct subway lines that do not interconnect at the station. On the Sixth Avenue Line, uptown trains (heading west through the station) merge with the
IND Eighth Avenue Line along Central Park West, while downtown trains (heading east through the station) run along the Sixth Avenue Line. On the Queens Boulevard Line, uptown trains (heading east through the station) go to
Queens via the
53rd Street Tunnel, while downtown trains (headed west through the station) merge with the Eighth Avenue Line south of
50th Street. There is no way for trains to travel between Central Park West and Queens, or between the Sixth Avenue Line and the lower section of the Eighth Avenue Line. West of the station, the southbound Sixth Avenue Line track (internally labeled as track B3) rises above both Queens Boulevard Line tracks (D3 southbound and D4 northbound), which in turn are above the northbound Sixth Avenue Line track (B4). == References ==