The BMT Brighton Line, also known as the Brighton Beach Line, is a rapid transit line in the B Division of the New York City Subway in Brooklyn, New York City, United States. Local service is provided at all times by the Q train, but is joined by the B express train on weekdays. The Q's segment on the Brighton Line begins at the line's south end, Coney Island – Stillwell Avenue, and the Q travels the entire line, over the Manhattan Bridge south tracks to the BMT Broadway Line. The B begins at Brighton Beach and runs via the bridge's north tracks to the IND Sixth Avenue Line.