ICTIS 2011 multimodal approach to sustained transportation system development - information, technology, implementation proceedings of the First International Conference on Transportation Information and Safety, June 30-July 2, 2011, Wuhan, China / sponsored and organized by Wuhan University of Technology (WUT), The Transportation & Development Institute (T&DI) of the American Society of Civil Engineers, China Communications and Transportation Association (CCTA), National Natural Science Foundation of China (NSFC), Canadian Society for Civil Engineers (CSCE) ;