1. Department of Transportation Engineering, School of Transportation, Southeast University, Nanjing, China
2. Department of Built Environment, School of Engineering, Aalto University, Espoo, Finland
3. Jiangsu Key Laboratory of Urban ITS, Jiangsu Province Collaborative Innovation Centre of Modern Urban Traffic Technologies, School of Transportation, Southeast University, Nanjing, China
4. Library, Nanjing Tech University, Nanjing, China