**GAO-08-44**                      Published: Feb 08, 2008. Publicly Released: Feb 08, 2008.                  

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## Highlights

The United States is at a critical juncture in addressing the demands on its transportation system, including highway infrastructure. State and local governments are looking for alternatives, including increased private sector participation. GAO was asked to review (1) the benefits, costs, and trade-offs of public-private partnerships; (2) how public officials have identified and acted to protect the public interest in these arrangements; and (3) the federal role in public-private partnerships and potential changes in this role. GAO reviewed federal legislation, interviewed federal, state, and other officials, and reviewed the experience of Australia, Canada, and Spain. GAO's work focused on highway-related public-private partnerships and did not review all forms of public-private partnerships.

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## Topics

Transportation

Cost analysisHighway planningInterstate highwaysPerformance measuresPrimary highwaysPublic roads or highwaysRisk managementState highwaysStrategic planningToll roadsTransportationTransportation costsTransportation industryTransportation planningTransportation policies