1. Associate Professor, School of Civil Engineering, Central South Univ., Hunan, Changsha 410075, China (corresponding author).
2. Ph.D. Candidate, School of Civil Engineering, Central South Univ., Hunan, Changsha 410075, China.
3. Research Fellow, School of Civil Engineering, Central South Univ., Hunan, Changsha 410075, China; Postdoctoral, Center for Advanced Infrastructure and Transportation, Rutgers, State Univ. of New Jersey, Piscataway, NJ 08854.
4. Assistant Professor, Dept. of Civil and Environmental Engineering, Rutgers, State Univ. of New Jersey, Piscataway, NJ 08854.