1. Lecturer, School of Civil and Transportation Engineering, Beijing Univ. of Civil Engineering and Architecture, Beijing 100044, China; formerly, Ph.D. Student, School of Highway, Chang’an Univ., Xi’an 710064, China.
2. Professor, School of Civil and Transportation Engineering, Beijing Univ. of Civil Engineering and Architecture, Beijing 100044, China.
3. Professor, Dept. of Civil and Environmental Engineering, Michigan Technological Univ., Houghton, MI 49931. ORCID: .
4. Professor, School of Highway, Chang’an Univ., Xi’an 710064, China (corresponding author). ORCID: .