GAO - Principles to Restructure the Transportation Funding Process

Since federal funding for the interstate system was established in 1956, the federal role in surface transportation has expanded to include broader goals, more programs, and a variety of program structures. Consequently, the goals of current programs are numerous and sometimes conflicting, and the federal role in these programs is unclear. For example, federal programs do not effectively address key transportation challenges, such as increasing congestion and freight demand. Many surface transportation programs are also not linked to performance of the transportation system or of the grantees, and programs often do not employ the best tools and approaches. Finally, the fiscal sustainability of the numerous highway, transit, and safety programs funded by the Highway Trust Fund is in doubt, because spending from the fund has increased without commensurate increases in revenues.

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