1. Assistant Professor of Construction Engineering and Management, Dept. of Civil and Structural Engineering, the Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong SAR, China.
2. Professor Emeritus, and former Chair Professor of Civil Engineering, the Faculty of Construction and Land Use, the Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong SAR, China.