ICTE 2011 [electronic resource] : proceedings of the third international conference on transportation engineering July 23-25, 2011 Chendu, China / by International Conference on Transportation Engineering (3rd : 2011: Chendu, China), Peng, Qiyuan, editor, Wang, Kelvin C.P., editor, Qiu, Yanjun, editor, Pu, Yun, editor, Shuai, Bin, editor