1. School of Automobile and Traffic Engineering, Heilongjiang Institute of Technology, Harbin 150050, China
2. School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
3. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
4. School of Transportation and Logistics Engineering, Shandong Jiaotong University, Jinan 230357, China