1. Professor, School of Transportation, Southeast Univ., Nanjing, Jiangsu 210096, China; Professor and Chairman, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064; and Adjunct Professor, School of Architecture and Civil Engineering, Xiameng Univ., Xiameng, China (corresponding author).
2. Ph.D. Candidate, School of Transportation, Southeast Univ., Nanjing, Jiangsu 210096, China.
3. Postdoctoral Researcher, School of Transportation, Southeast Univ., Nanjing, Jiangsu 210096, China; and Tianjin Bureau of Highway Quality and Safety Inspection, Nankai District, Tianjin 300384, China.