NOTES: Net federal subsidy is estimated as federal outlays minus federal receipts from transportation taxes and user fees. Actual outlays and receipts are used in the calculation. Negative numbers show user charge payments to the federal government in excess of cost responsibility. See detailed notes in table 10-8 in appendix B.
To eliminate the effects of inflation over time, the Bureau of Transportation Statistics converted current dollars (see table 10-8b in appendix B) to chained 2000 dollars.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, “Federal Subsidies to Passenger Transportation,” December 2004, available at http://www.bts.gov/, as of February 2005.