1. Ph.D. Student, Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji Univ., Shanghai 201804, China; Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Tennessee, Knoxville, TN 37996.
2. Professor, Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji Univ., Shanghai 201804, China.
3. Research Scientist, Hebei Research Institute of Construction and Geotechnical Investigation Co. Ltd., 58 Jianhua S St., Shijiazhuang 050031, China; Research Scientist, Technology Center of Geotechnical Engineering of Hebei Province, 58 Jianhua S St., Shijiazhuang 050031, China.
4. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of Tennessee, Knoxville, TN 37996.
5. Assistant Professor, School of Transportation and Logistics, Dalian Univ. of Technology, Dalian 116024, China.
6. Visiting Professor, School of Transportation Engineering, Tongji Univ., Shanghai 201804, China; Edwin G. Burdette Professor, Dept. of Civil and Environmental Engineering, Univ. of Tennessee, Knoxville, TN 37996 (corresponding author).