Overview
The Intermodal Passenger Connectivity Database (IPCD) is a nationwide data table of 7,000 rail, air, bus and ferry passenger transportation terminals. The objective of the IPCD is to provide data to use in measuring the degree of intermodal connectivity in the passenger transportation system. Therefore, each terminal record in the data base describes the availability of intercity and transit rail, bus and ferry service along with airline service as well. This data has been collected from various public sources to provide the only nationwide measurement of the degree of connectivity available in the national transportation system. Data collection was complete in mid-2012. The data for all modes is updated periodically.