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Federal
Intermodal Passenger Connectivity Database (IPCD)
Federal Geographic Data Committee —
The Intermodal Passenger Connectivity Database (IPCD) dataset was compiled on August 10, 2021 and was updated October 19, 2022 from the Bureau of Transportation... -
Federal
Air-Rail CO2 Data Final Miller 2023-03-19
U.S. Environmental Protection Agency —
Data presented in Miller (2021) Savings in per-passenger CO2 emissions using rail rather than air travel in the northeastern U.S., JAWMA, 71:12, 1458-1471,...