New York metropolitan area passed through ports in New York or in one of the surrounding towns. The five boroughs of New York City — The Bronx, Brooklyn, Manhattan, Queens, and Staten Island — were consolidated into a single city in 1898. The newly unified New York City encouraged both more physical connections between the boroughs and the growth of bedroom communities. The New York City Subway began operating in 1904 as the Interborough Rapid Transit Company, one of three systems (the other two being the Brooklyn-Manhattan Transit Corporation and the Independent Subway System) that were later taken over by the city. Railroad stations
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