1. Institute of Intelligent Transportation Systems, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
2. Zhejiang University-University of Illinois Urbana-Champaign Institute, Zhejiang University, Haining, People's Republic of China
3. Zhejiang Provincial Engineering Research Center for Intelligent Transportation, Hangzhou, China
4. School of Economics and Management, Tsinghua University, Beijing, People's Republic of China
5. School of Management Science and Engineering, Central University of Finance and Economics, Beijing, People's Republic of China