1. School of Transportation, Southeast University, Nanjing, China
2. Jiangsu Key Laboratory of Urban ITS, Nanjing, China
3. Jiangsu Province Collaborative Innovation Center of Modern, Urban Traffic Technologies, Nanjing, China
4. School of Modern Post, Nanjing University of Posts and Telecommunications, Nanjing, China
5. College of Civil Engineering, Nanjing Forestry University, Nanjing, China