Proceedings of the Third International Conference on Urban Public Transportation Systems, held in Paris France, November 17-20, 2013. This collection contains 41 peer-reviewed papers on advances in the field of transportation systems. These papers describe the state of the art and practice in improving mobility, accessibility and, ultimately, quality of life through better urban transportation. Topics include: planning, environment, and finance; operations and maintenance; infrastructure and design; and innovative systems and practices. These papers will be of interest to transportation engineers, planners, and managers of urban transportation systems