1. Institute of Transportation Systems Science and Engineering Beijing Jiaotong University Beijing China
2. Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Ministry of Transport Beijing Jiaotong University Beijing China
3. Key Laboratory of Environmental Change and Natural Disaster Ministry of Education Beijing China
4. State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing China
5. Faculty of Geographical Science, Academy of Disaster Reduction and Emergency Management Beijing Normal University Beijing China
6. Rensselaer Polytechnic Institute, Department of Computer Science Troy NY USA
7. Rensselaer Polytechnic Institute Network Science and Technology Center Troy NY USA
8. Theoretical division Los Alamos National Laboratory Los Alamos NM USA
9. Faculty of Geographical Science, School of Geography Beijing Normal University Beijing China
10. Center for Polymer Studies and Department of Physics Boston University Boston MA USA