NOTES: Intercity bus connection includes: intercity, code share, and supplemental bus service. Transit rail connection includes: light rail, heavy rail, and commuter rail. Ferries includes both transit ferry and intercity ferry.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Intermodal Passenger Connectivity Database (as of 10/19/2016). Available at www.bts.gov as of October 2016.