1. School of TransportationSoutheast UniversityNo.2 Southeast University RoadNanjingJiangsu211189People's Republic of China
2. Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic TechnologiesSoutheast UniversityRoad #2Nanjing211189People's Republic of China
3. Department of Civil and Environmental EngineeringUniversity of Wisconsin, Madison1208 Engineering Hall 1415 Engineering DriveMadisonWI53706USA
4. Key Laboratory of Road and Traffic Engineering of the Ministry of EducationTongji University4800 Cao'an RoadShanghai201804People's Republic of China