The Sumner Avenue Line and New Lots Avenue Line were two streetcar lines in Brooklyn, New York City, running mainly along Marcus Garvey Boulevard, East 98th Street, and New Lots Avenue between northern Bedford–Stuyvesant and New Lots. Originally streetcar lines, the two lines were combined as a bus route in 1947. That bus route became the present B15 Marcus Garvey Boulevard / New Lots Avenue service, operated by MTA New York City Bus' East New York Depot in East New York. The B15 continues east from New Lots to John F. Kennedy International Airport in Queens.

Bedford–Stuyvesant, colloquially known as Bed–Stuy, is a neighborhood in the northern section of the New York City borough of Brooklyn. Bedford–Stuyvesant is bordered by Flushing Avenue to the north, Classon Avenue to the west, Broadway to the east, and Atlantic Avenue to the south. The main shopping street, Fulton Street, runs east–west the length of the neighborhood and intersects high-traffic north–south streets including Bedford Avenue, Nostrand Avenue, and Stuyvesant Avenue. Bedford–Stuyvesant contains four smaller neighborhoods: Bedford, Stuyvesant Heights, Ocean Hill, and Weeksville. Part of Clinton Hill was once considered part of Bedford–Stuyvesant.