This report identifies potential improvements in terms of more effective safety and environmental regulation for trucks, backed by better systems of enforcement, and  identifies opportunities for greater efficiency and higher productivity. The report is based on a review of literature, consultation among stakeholders, and research and analysis from working group members. It also presents the results of a comprehensive benchmarking study of 39 truck configurations in operation around the world – from typical workhorse vehicles to very high capacity vehicles – and assesses their performance in terms of dynamic stability, productivity and impact on the infrastructure.