1. Associate Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR, China (corresponding author).
2. Research associate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR, China.
3. Chair Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR, China.