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
4 (New York City Subway service) detailed station listing, see the articles on the lines listed above. 4 (New York City Subway service) The 4 Lexington Avenue Express is a rapid transit service in the A Division of the New York City Subway. Its route emblem, or "bullet", is colored since it uses the IRT Lexington Avenue Line in Manhattan. The 4 operates at all times. Daytime service operates between Woodlawn in the Bronx and Utica Avenue in Crown Heights, Brooklyn, making local stops in the Bronx and express stops in Manhattan and Brooklyn; limited weekday rush hour service, as well as late night service, is