1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu, China
2. Dire Dawa Institute of Technology, Dire Dawa University, Dire Dawa, Ethiopia
3. School of Civil and Environmental Engineering, UNSW Sydney, Sydney, NSW, Australia
4. National Engineering Laboratory of Integrated Transportation Big Data Application Technology, High-Tech District, Chengdu, China
5. National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu, China
6. School of Transportation, Fujian University of Technology, Fuzhou, China