The International Technology Scanning Program released the "Reducing Congestion and Funding Transportation Using Road Pricing in Europe and Singapore" scan in December 2010, sponsored by the U.S. Department of Transportation and in cooperation with the American Association of State Highway and Transportation Officials and the National Cooperative Highway Research Program.


Congestion pricing use has been limited in the United States because of political, institutional, and public acceptance concerns. The Federal Highway Administration, American Association of State Highway and Transportation Officials, and National Cooperative Highway Research Program sponsored a scanning study of Europe and Singapore to identify ideas and models for integrating road pricing approaches
into U.S. practices.

The scan team found that countries with clearly defined and well-understood policy goals were able to achieve targeted outcomes most effectively. The team also learned that a large-scale demonstration project is a good tool to build public acceptance of road pricing.

Team recommendations for U.S. implementation include enhanced outreach and communication on road pricing use and research on public perception issues and implementation barriers. The team also recommended development of a road pricing toolkit to provide transportation professionals with a comprehensive decision analysis tool to assess the merits of road pricing options.