Intelligent Transportation Systems Benefits, Costs, and Lessons Learned: 2005 Update

Intelligent Transportation Systems (ITS) technologies offer a clear opportunity to improve transportation safety, relieve congestion, and enhance productivity. This report is a continuation of a series of reports providing a synthesis of the information collected by the United States Department of Transportation's ITS Joint Program Office on the impact that ITS projects have on the operation of the surface transportation network, and the costs of ITS deployment and operations. New in the 2005 report is the inclusion of summaries of lessons learned from ITS planning, deployment, operations, and evaluation experience. Information in this report is drawn from the ITS Benefits and Costs Databases, regularly updated repositories of such information, available on the Internet at www.benefitcost.its.dot.gov. The report presents material from the databases that describes the impacts and costs of the intelligent transportation infrastructure as well as intelligent vehicle applications. More details of the lessons learned discussed in this report will be presented in the Internet-accessible ITS Lessons Learned Database planned to be available in the summer of 2005.