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....

Despite significant efforts on the part of some countries, transport CO2 emissions have increased steadily over the last ten years. This report reviews the progress OECD and ECMT countries have made in reducing transport sector CO2 emissions and makes recommendations for the focus of future...