1. Ph.D. Student, School of Civil and Hydraulic Engineering, Huazhong Univ. of Science and Technology, No. 1037 Luoyu Rd., Hongshan District, Wuhan 430074, China.
2. Associate Professor, School of Civil and Hydraulic Engineering, Huazhong Univ. of Science and Technology, No. 1037 Luoyu Rd., Hongshan District, Wuhan 430074, China (corresponding author).
3. Ph.D. Student, School of Transportation Science and Engineering, Harbin Institute of Technology, No. 73, Huanghe Rd., Nangang District, Harbin 150090, China.