1. Lecturer, Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing Univ. of Technology, Beijing 100124, China.
2. Professor, Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing Univ. of Technology, Beijing 100124, China.
3. Professor, School of Transportation Science and Engineering, Beihang Univ., Beijing 100191, China.
4. Lecturer, Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China (corresponding author). Emails: