1. Ph.D. Student, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Room No. ZN1002, Hung Hom, Kowloon, Hong Kong SAR.
2. Chair Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Room No. ZS734, Hung Hom, Kowloon, Hong Kong SAR.
3. Assistant Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Room No. ZN737, Hung Hom, Kowloon, Hong Kong SAR.
4. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Michigan, Ann Arbor, MI 48109.
5. Chair Professor, Faculty of Computing, Engineering and the Built Environment, Birmingham City Univ., Birmingham B4 7BD, U.K.