Church Avenue (IND Culver Line) in the context of "Fd (New York City Subway service)"

The IND Culver Line (formerly BMT Culver Line) is a rapid transit line of the B Division of the New York City Subway, extending from Downtown Brooklyn south to Coney Island, Brooklyn, New York City, United States. The local tracks of the Culver Line are served by the F service, as well as the G between Bergen Street and Church Avenue. The express tracks north of Church Avenue are used by the <F> train during rush hours in the peak direction. The peak-direction express track between Ditmas Avenue and Avenue X has not seen regular service since 1987.

The line is named after Andrew Culver, who built the original Culver Line that preceded the current subway line. The present-day line was built as two unconnected segments operated by the Independent Subway System (IND) and Brooklyn–Manhattan Transit Corporation (BMT). The northern section of the line, between Jay Street–MetroTech and Church Avenue, is a four-track line that was built for the IND in 1933, running primarily underground except for a short elevated section over the Gowanus Canal.

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.