1. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, People's Republic of China
2. College of Transportation and Logistics, East China Jiaotong University, Nanchang, People's Republic of China
3. Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai, People's Republic of China
4. School of Business Administration & Institute of Behavioral and Service Operations Management, Northeastern University, Shenyang, People's Republic of China