M104 (New York City bus)

The Broadway Line or Broadway Branch Line is a surface transit line in Manhattan, New York City, United States, running mainly along 42nd Street and Broadway from Murray Hill to Harlem. Formerly a streetcar line operated by the Third Avenue Railway, it is now the M104 Broadway bus route operated by the Manhattan and Bronx Surface Transit Operating Authority, a subsidiary of the Metropolitan Transportation Authority. However, that bus route no longer runs along the entire streetcar route.

The M104 bus route was shortened to Times Square from the Headquarters of the United Nations in June 2010 as part of a service cutback. Buses use Eighth Avenue (northbound) and Seventh Avenue (southbound) to Central Park South. The route continues north on Broadway through the Upper West Side, finally turning off at 125th Street, where it turns around at a clockwise loop on Amsterdam Avenue, 129th Street, Convent Avenue, and 125th Street.

Transfers can be made to the New York City Subway at 57th Street – Seventh Avenue (N Q R W trains), Seventh Avenue – 53rd Street (B D E trains), Times Square – 42nd Street (1 2 3 7 <7> N Q R W S trains), 42nd Street – Port Authority Bus Terminal (A C E trains), 59th Street – Columbus Circle (1 2 A C B D trains), and 125th Street (1 train).

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