the 57th Street station, the line joins two express tracks that enter the station from the north via the BMT 63rd Street Line, which the Q uses (with rush hour service from the N and R). The line proceeds as a four-track subway down Seventh Avenue to its intersection with Broadway at Times Square-42nd Street, and then continues down Broadway to a point north of Canal Street, where the express tracks carrying the N and Q services descend and turn sharply east to separate platforms from the local tracks, before crossing the south side of the Manhattan Bridge to go to Brooklyn. Immediately after Canal Street, the express tracks resume again (originally they had been intended to run through) and serve as storage and turning tracks, bypassing the Canal Street local station and ending in the disused lower level of City Hall. The local tracks continue south as a two-track subway to Whitehall Street–South Ferry station. Whitehall Street–South Ferry is a three track, two-platform station, with the center track set up as a terminal track for the W train during weekdays, and late night R trains. A pair of bellmouths exists here, allowing for a connection to a never-built East River tunnel south of the Montague Street Tunnel that would have connected to Atlantic Avenue in Brooklyn. It has been proposed to use this as part of the Lower Manhattan–Jamaica/JFK Transportation Project, connecting to the Court Street station (New York Transit Museum) in Brooklyn. The BMT Broadway Line then curves east carrying the R train to a trailing non-revenue connection with the BMT Nassau Street Line () and enters the Montague Street Tunnel to Brooklyn. History Planning The New York Public Service Commission adopted plans for what was known as the Broadway–Lexington Avenue route on December 31, 1907. This route began at the Battery and ran under Greenwich Street, Vesey Street, Broadway to Ninth Street, private property to Irving Place, and Irving Place and Lexington Avenue to the Harlem River. After crossing under the Harlem River into the Bronx, the route split at Park Avenue and 138th Street, with one branch continuing north to and along Jerome Avenue to Woodlawn Cemetery, and the other heading east and northeast along 138th Street, Southern Boulevard, and Westchester Avenue to Pelham Bay Park. In early 1908, the Tri-borough plan was formed, combining this route, the under-construction Centre Street Loop Subway in Manhattan and