1. Associate Editor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZN744, Block Z, Kowloon 999077, Hong Kong (corresponding author).
2. Research Assistant, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZN711, Block Z, Kowloon 999077, Hong Kong.
3. Ph.D. Candidate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZN711, Block Z, Kowloon 999077, Hong Kong.
4. Associate Professor, Dept. of Applied Mathematics, Hong Kong Polytechnic Univ., ZN711, Block Z, Kowloon 999077, Hong Kong.