1. MOE Key Laboratory of Urban Transportation Complex System Theory and Technology, Beijing Jiaotong Univ., Beijing 100044, P. R. China (corresponding author). ORCID: .
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
3. Professor, MOE Key Laboratory of Urban Transportation Complex System Theory and Technology, Beijing Jiaotong Univ., Beijing 100044, P. R. China.
4. Professor, MOE Key Laboratory of Urban Transportation Complex System Theory and Technology, Beijing Jiaotong Univ., Beijing 100044, P. R. China;