1. Associate Professor, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou, China.
2. Postgraduate, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou, China.
3. Lecturer, School of Business, Guangzhou Univ., Guangzhou, China.
4. Professor, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou, China.