New York City Downtown Brooklyn, and the FDNY Fire Academy is located on Randalls Island. There are three Bureau of Fire Communications alarm offices which receive and dispatch alarms to appropriate units. One office, at 11 Metrotech Center in Brooklyn, houses Manhattan/Citywide, Brooklyn, and Staten Island Fire Communications; the Bronx and Queens offices are in separate buildings. The New York Public Library, which has the largest collection of any public library system in the United States, serves Manhattan, the Bronx, and Staten Island. Queens is served by the Queens Borough Public Library, the nation's second largest public library system, while the Brooklyn Public
D (New York City Subway service) D (New York City Subway service) The D Sixth Avenue Express is a rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is colored since it uses the IND Sixth Avenue Line in Manhattan. The D operates at all times between 205th Street in Norwood, Bronx, and Stillwell Avenue in Coney Island, Brooklyn. Daytime service operates local in the Bronx and express in Manhattan and in Brooklyn (between Atlantic Avenue–Barclays Center and 36th Street, bypassing DeKalb Avenue). During rush hours in the peak direction, service operates express between Fordham Road in