1. Ph.D. Candidate, Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji Univ., 4800 Cao’an Rd., Shanghai 201804, China.
2. Associate Professor, Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji Univ., 4800 Cao’an Rd., Shanghai 201804, China (corresponding author). ORCID: .
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts Amherst, Amherst, MA 01003.