NEW YORK CITY SUBWAY SYSTEM - UNITED STATES
New York City got the first metro line in 1904 , and to-day the control of the system is assumed by the New York City Transit Authority . The New York City subway system is the fifth largest busiest subway system in the world, and the busiest in the United States. With over 800 miles of track throughout the 5 boroughs of New York, and more than 5,800 subway cars (the largest fleet in the world), the New York City subways move more than 6,000,000 people to their destinations each day. Along its routes, the New York City subway system has 468 stations , 68 bridges, 12120 signals, 14 underground tunnels, 766 miles signal equipment, 442 miles tunnel lighting .