1. Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety of Ministry of Education, Changsha University of Science & Technology, Changsha 410114, China
2. School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China
3. Xiangjiang Laboratory, Changsha 410205, China
4. College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China