No Sigma Chi or Chi Omega chapter has anything on New York City's Metropolitan Transportation Authority (MTA) -- it rushes millions of people every day. The largest public transportation system in the US, the government-owned MTA provides about 2.6 billion passenger trips and sees about 300 million vehicles travel its system annually. The MTA's largest agency, the New York City Transit Authority, operates about 6,300 rail and subway cars that provide service across New York's five boroughs; it also runs a fleet of some 5,900 buses. Other MTA units offer bus and rail service to Connecticut and Long Island and operate the Triborough system of toll bridges and tunnels.