1. Doctoral Candidate, School of Highway, Chang’an Univ., Middle Section of South Erhuan Rd., Xi’an, Shaanxi 710064, China.
2. Professor, School of Highway, Chang’an Univ., Middle Section of South Erhuan Rd., Xi’an, Shaanxi 710064, China (corresponding author).
3. Master’s Degree Candidate, School of Highway, Chang’an Univ., Middle Section of South Erhuan Rd., Xi’an, Shaanxi 710064, China.
4. Professor, School of Highway, Chang’an Univ., Middle Section of South Erhuan Rd., Xi’an, Shaanxi 710064, China.