1. College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing, People’s Republic of China
2. Key Laboratory of Special Environment Road Engineering of Hunan Province, Changsha University of Science & Technology, Changsha, People’s Republic of China
3. School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha, People’s Republic of China
4. Xuhai College, China University of Mining and Technology, Xuzhou, People’s Republic of China
5. School of Civil Engineering, Chongqing Jiaotong University, Chongqing, People’s Republic of China