1. School of Transportation and Logistics, Southwest Jiaotong Univ., Chengdu 610031, China. ORCID: .
2. School of Transportation and Logistics, Southwest Jiaotong Univ., Chengdu 610031, China.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742.
4. Associate Professor, Faculty of Transportation Engineering, Kunming Univ. of Science and Technology, Kunming 650093, China; Associate Researcher, Dept. of Engineering, Univ. of Cambridge, Cambridge CB2 1TN, UK (corresponding author). ORCID: .
5. Professor, School of Transportation and Logistics, Southwest Jiaotong Univ., Chengdu 610031, China.
6. Associate Professor, School of Transportation and Logistics, Southwest Jiaotong Univ., Chengdu, Sichuan 610031, China.