1. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, 410114 Changsha, China; Key Laboratory of Highway Engineering of Ministry of Education, Changsha University of Science & Technology, 410114 Changsha, China
2. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, 410114 Changsha, China
3. School of Economics and Management, Beihang University, No. 37 Xueyuan Road, Haidian District, 100191 Beijing, China; Beijing Key Laboratory of Emergency Support Simulation Technologies for City Operations, Beihang University, No. 37 Xueyuan Road, Haidian District, 100191 Beijing, China