This report addresses key issues concerning managing urban traffic congestion, including defining congestion, measuring congestion, assessing its impacts, formulating a strategic vision for guiding management policies, and using technology and other operational options to ameliorate congestion....

Recent advances in the scientific understanding of urban traffic congestion have only strengthened the already solid case for congestion charges as an element of a successful urban transport policy. But examples of real-world congestion charging systems remain few and far between. What can be...