5 Largest Public Transit Systems in U.S. (infographic)

The "Let’s Take a Ride" infographic showcases five major U.S. cities — Chicago, New York City, Boston, Washington, D.C., and San Francisco — with most extensive public transit systems in the country. The infographic, created by the UNC School of Government MPA@UNC, depicts how millions of Americans travel daily via mass transit and gives a "better understanding of the scope and history of each city and its public transportation system."