NOTES: Federal transportation expenditures consist of outlays of the federal government including not only direct spending but also grants made to state and local governments. To avoid double counting, state and local transportation expenditures include their outlays from all sources of funds except federal grants received. Pipeline data only include federal-level expenditures, as state and local data are not available. State and local data are reported together, because disaggregated federal grants data are not available.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Government Transportation Financial Statistics 2002, forthcoming.