1. Department of Transportation, Nanjing University of Science and Technology, Nanjing, China
2. Nanjing PANDA Mechatronics Instrument Technology Co., Ltd, Nanjing, China
3. Nanjing No. 13 High School, Nanjing, China
4. Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
5. School of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo, China