1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu Sichuan, China
2. Institute of System Science and Engineering, Southwest Jiaotong University, Chengdu Sichuan, China
3. National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu Sichuan, China
4. School of Economics and Management, Chang’an University, Xi’an Shanxi, China