1. Ph.D. Student, School of Transportation, Southeast Univ., Dongnandaxue Rd. 2, Nanjing 211189, PR China.
2. Professor, School of Transportation, Southeast Univ., Dongnandaxue Rd. 2, Nanjing 211189, PR China (corresponding author).
3. Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., 25, 3136 TAMU, College Station, TX 77843 26. ORCID: .