1. Associate Professor, National Engineering Laboratory of Highway Maintenance Technology and Dept. of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha, Hunan 410114, PR China.
2. Ph.D. Candidate, Dept. of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha, Hunan 410114, PR China (corresponding author). ORCID: .
3. Professor, National Engineering Laboratory of Highway Maintenance Technology and Dept. of Traffic and Transportation Engineering, Changsha Univ. of Science and Technology, Changsha, Hunan 410114, PR China.