1. Ph.D. Candidate, School of Transportation, Southeast Univ., No. 2 Southeast University Rd., Jiangning District, Nanjing 211189, China.
2. Professor, National and Local Joint Laboratory of Traffic Civil Engineering Materials, Chongqing Jiaotong Univ., Chongqing 400074, China.
3. Professor, School of Transportation, Southeast Univ., No. 2 Southeast University Rd., Jiangning District, Nanjing 211189, China (corresponding author).
4. Associate Professor, School of Transportation, Southeast Univ., No. 2 Southeast University Rd., Jiangning District, Nanjing 211189, China.