[1
]Professor, College of Metropolitan Transportation, Beijing Univ. of Technology, No.
100, Pingleyuan, Chaoyang District, Beijing 100124, China (corresponding author).
[2
]Master Student, College of Metropolitan Transportation, Beijing Univ. of Technology,
No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China.
[3
]Assistant Professor, College of Metropolitan Transportation, Beijing Univ. of Technology,
No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China. ORCID: .
[4
]Senior Engineer, Beijing Municipal Commission of Transport, No. 9, Liuliqiao Nanli,
Fengtai District, Beijing 100073, China.