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
Jersey City, New Jersey Jersey City, New Jersey Jersey City is the second-most-populous city in the U.S. state of New Jersey, after Newark. It is the seat of Hudson County as well as the county's largest city. As of 2017, the Census Bureau's Population Estimates Program calculated that Jersey City's population was 270,753, with the largest population increase of any municipality in New Jersey since 2010, an increase of about 9.4% from the 2010 United States Census, when the city's population was at 247,597. ranking the city the 75th-most-populous in the nation. Part of the New York metropolitan area, Jersey City is bounded on