1. School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China
2. Intelligent Transportation Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA
3. Future Urban Mobility IRG, Singapore-MIT Alliance for Research and Technology Centre, 4 Engineering Drive 3, Singapore
4. School of Architecture, Harbin Institute of Technology, Shenzhen, China
5. Department of Management Engineering, Technical University of Denmark, Kongens Lyngby, Denmark