Jamaica–179th Street (IND Queens Boulevard Line) in the context of "Fd (New York City Subway service)"

The IND Queens Boulevard Line, sometimes abbreviated as QBL, is a line of the B Division of the New York City Subway in Manhattan and Queens, New York City. The line, which is underground throughout its entire route, contains 23 stations. The core section between 50th Street in Hell's Kitchen, Manhattan, and 169th Street in Jamaica, Queens, was built by the Independent Subway System (IND) in stages between 1933 and 1940, with the Jamaica–179th Street terminus opening in 1950. As of 2015, it is among the system's busiest lines, with a weekday ridership of over 460,000 people.

The Queens Boulevard Line's eastern terminus is the four-track 179th Street station. The line continues westward then northwest as a four-track line with the local tracks to the outside of the express tracks. The Queens Boulevard Line merges with the IND Archer Avenue Line east of Briarwood and with Jamaica Yard spurs west of Briarwood and east of Forest Hills–71st Avenue. The express tracks and the local tracks diverge at 65th Street in Jackson Heights and merge again at 36th Street in Sunnyside. West of 36th Street, the IND 63rd Street Line splits off both pairs of tracks, entering Manhattan via the 63rd Street Tunnel. At Queens Plaza in Long Island City, the line narrows to two tracks, with the local tracks splitting into the 60th Street Tunnel Connection and the IND Crosstown Line. From there, the express tracks of the line provide crosstown service across Manhattan under 53rd Street before turning southwest at Eighth Avenue, ending at the 50th Street station. The two-track section west of Queens Plaza is also known as the IND 53rd Street Line.

The E Eighth Avenue Local is a rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is blue since it uses the IND Eighth Avenue Line in Manhattan.

The E operates at all times between Jamaica Center–Parsons Boulevard–Archer Avenue in Jamaica, Queens, and the World Trade Center in Lower Manhattan; limited rush hour service originates and terminates at 179th Street instead of Jamaica Center. Daytime service makes express stops in Queens and all stops in Manhattan; overnight service makes all stops along the full route.

The F and <F> Queens Boulevard Express/Sixth Avenue Local are two rapid transit services in the B Division of the New York City Subway. Their route bullets are colored orange, since they use and are part of the IND Sixth Avenue Line in Manhattan.

The F operates 24 hours daily between 179th Street in Jamaica, Queens and Stillwell Avenue in Coney Island, Brooklyn. Daytime service makes express stops in Queens and all stops in Manhattan and Brooklyn; overnight service makes all stops along the full route. Limited rush hour service operates along the full route and makes express stops between Jay Street and Church Avenue in the peak direction only, making one intermediate stop at Seventh Avenue; this express service was introduced in September 2019. In Brooklyn, local service is denoted as (F) in a circle-shaped bullet while express service is denoted as <F> in a diamond-shaped bullet.