1. Ph.D. Candidate, School of Highway, Chang’an Univ., South Erhuan Middle Section, Xi’an, Shaanxi 710064, China.
2. Professor, School of Highway, Chang’an Univ., South Erhuan Middle Section, Xi’an, Shaanxi 710064, China (corresponding author).
3. School of Engineering, Monash Univ., Sunway Campus, Jalan Lagoon Selatan, 47500 Bandar Sunway, Malaysia.
4. Professor, Dept. of Civil and Environmental Engineering, Michigan Technological Univ., 1400 Townsend Dr., Houghton, MI 49931.