Transportation in New York City City and Fort Lee, New Jersey, is the world's busiest bridge in terms of vehicular traffic. New York has historically been a pioneer in tunnel construction. Most carry rail lines, but there are four exceptions. The Lincoln Tunnel, which carries 120,000 vehicles per day under the Hudson River between New Jersey and Manhattan, is the world's busiest vehicular tunnel. The Holland Tunnel, also under the Hudson River, was the first mechanically ventilated vehicular tunnel in the world and is considered a National Civil Engineering Landmark by the American Society of Civil Engineers. Two other notable tunnels connect Manhattan to other
Congestion pricing in New York City York City. A recurring proposal includes adding tolls to all crossings of the East River, which separates Manhattan from Long Island; currently, four bridges across the East River do not charge any tolls. In the 1970s, after New York City was deemed to be in violation of the Clean Air Act, Mayor John Lindsay proposed limiting cars in Lower Manhattan and tolling all crossings of the East River, but ultimately withdrew the proposal. Lindsay's successor Abraham Beame subsequently opposed the tolling scheme. Beame's successor Ed Koch attempted to restore limits on vehicles entering Manhattan, but the federal government preempted his