1. Assistant Professor, School of Civil Engineering and Architecture, Guangxi Univ., Nanning, Guangxi 530004, China; College of Civil and Transportation Engineering, Hohai Univ., Nanjing, Jiangsu 210098, China.
2. Professor, School of Traffic and Engineering, Changsha Univ. of Science and Technology, Changsha, Hunan 410114, China; Professor, College of Civil and Transportation Engineering, Hohai Univ., Nanjing, Jiangsu 210098, China (corresponding author).
3. Ph.D. Candidate, Jiangsu Jinghu Expressway Co., Ltd., 128 Shangxi Rd., Nanjing, Jiangsu 210008, China.
4. Postdoctoral Researcher, College of Civil and Transportation Engineering, Hohai Univ., Nanjing, Jiangsu 210098, China.
5. Assistant Professor, College of Civil Engineering and Architecture, WuYi Univ., Jiangmen, Guangdong 529020, China.
6. Ph.D. Candidate, College of Civil and Transportation Engineering, Hohai Univ., Nanjing, Jiangsu 210098, China.
7. Associate Professor, School of Civil Engineering, Guangzhou Univ., Guangzhou 510006, China.