The Q Broadway Express is a rapid transit service in the New York City Subway's B Division. Its route emblem, or "bullet", is colored yellow since it uses the BMT Broadway Line in Manhattan.
The Q operates at all times between Third Avenue – 149th Street in the Hub of the South Bronx and Stillwell Avenue in Coney Island, Brooklyn, via Second Avenue Subway/63rd Street, making express stops on Broadway (except nights when it serve all stops), crossing over the Manhattan Bridge south side, and serving all stops on the BMT Brighton Line in Brooklyn.