1. Road Traffic Safety Research Center of the Ministry of Public Security, Beijing, People’s Republic of China
2. College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing, People’s Republic of China
3. Department of Basic Industries, National Development and Reform Commission, Beijing, People’s Republic of China
4. School of Transportation, Southeast University, Nanjing, People’s Republic of China
5. School of Transportation, Nantong University, Nantong, People’s Republic of China