1. Ph.D. Candidate, School of Transportation, Southeast Univ., Nanjing 210096, China.
2. Associate Professor, Intelligent Transportation Research Center, Southeast Univ., Nanjing 210096, China (corresponding author).
3. Ph.D. Candidate, School of Highway, Chang’an Univ., Xi’an 710064, China.
4. Professor, School of Material Science and Engineering, Chang’an Univ., Xi’an 710064, China.