[1] Beijing Key Laboratory of Transportation Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing,100124, China
[2] College of Urban Construction, Hebei Normal University of Science and Technology, 360 Western Section of Hebei Avenue, Haigang District, Qinhuangdao,Hebei,066004, China
[3] Department of Industrial Systems Engineering and Management, National University of Singapore, Engineering Drive 2, 117576, Singapore