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
History of New York City (1855–1897) movement of the 1950s. Pre-war steam ferries had already made Brooklyn Heights into a bedroom community for affluent professionals on Wall Street and other urban areas. Elevated railroads, operated by the Manhattan Railway Company, and other new public transport expanded the commuter area of New York, allowing development of suburbs for commuters of more modest means in Upper West Side and other distant areas. Plans were made for subways to still more remote exurbs such as Harlem and the West Bronx. In the late 19th century, the island's schist bedrock encouraged the early skyscrapers whose successors characterize its skyline today.