1. Professor, Intelligent Transport System Research Center, Southeast Univ., Number 35 Jinxianghe Road, Nanjing, 210018, CN, e-mail: qianzd@seu.edu.cn
2. Engineer, Suzhou Highway Bureau, Number 300 Tongjing South Road, Suzhou, 215007, CN, e-mail: wjy0804@163.com
3. Lecturer, Intelligent Transport System Research Center, Southeast Univ., Number 35 Jinxianghe Road, Nanjing, 210018, CN, e-mail: Chenleilei@seu.edu.cn
4. Professor, Charles E. Via, Jr. Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., 200 Patton Hall, MC 0105, Blacksburg, VA 24061, US, e-mail: wangl@vt.edu