1. Postdoctoral Fellow, School of Qilu Transportation, Shandong Univ., Jinan, Shandong Province 290061, China. ORCID: .
2. Graduate Research Assistant, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou, Guangdong Province 510641, China.
3. Associate Professor, School of Qilu Transportation, Shandong Univ., Jinan, Shandong Province 290061, China (corresponding author).
4. Associate Professor, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou, Guangdong Province 510641, China.