1. Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Ministry of Transport, Beijing Jiaotong University, Beijing, People’s Republic of China
2. Institute of Systems Engineering, College of Management and Economics, Tianjin University, Tianjin, People’s Republic of China
3. Department of Civil and Environmental Engineering, University of South Florida, Tampa, FL, USA
4. School of Information Engineering, Chang’an University, Xi’an, People’s Republic of China