The continuing need for better urban transport systems and a healthier environment has led to an increased level of research around the world. This is reflected in Urban Transport XI, which features the proceedings of the latest conference in this well-established series. The subjects covered are of primary importance for analysing the complex interaction of the urban transport environment and for establishing action strategies for transport and traffic problems. Over 85 papers are included and these highlight topics within the following areas: Urban Transport Systems, Public Transport Systems; Infrastructure and Maintenance; Safety and Security; Transport Sustainability; Accessibility and Mobility; Environmental Impacts; Air and Noise Pollution; Energy and Fuel; Integrated Land Use and Transport; Travel Demand Management; Traffic Control and Integration; Advanced Transport Systems; Simulation; Economic and Social Impacts and Cost and Investment Analysis.