1. Professor, School of Transportation Science and Engineering, Beihang Univ., Beijing 100191, PR China; Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang Univ., Beijing 100191, PR China.
2. Postdoctoral Scholar, School of Transportation Science and Engineering, Beihang Univ., Beijing 100191, PR China (corresponding author).
3. Ph.D. Candidate, Transportation Management College, Dalian Maritime Univ., Dalian 116026, PR China.
4. Graduate Student, School of Transportation Science and Engineering, Beihang Univ., Beijing 100191, PR China; Transportation Management College, Dalian Maritime Univ., Dalian 116026, PR China.
5. Associate Professor, School of Transportation Science and Engineering, Beihang Univ., Beijing 100191, PR China.
6. Postdoctoral Scholar, Transportation Management College, Dalian Maritime Univ., Dalian 116026, PR China.