1. Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
2. Transport Division, Department of Technology, Management and Economics, Technical University of Denmark, Kongens Lyngby, Denmark
3. Department of Logistics and Information Engineering, Tokyo University of Marine Science and Technology, Tokyo, Japan
4. Department of Urban Studies and Planning, Massachusetts Institute of Technology, Cambridge, MA
5. Intelligent Transportation Systems Lab/Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA