1. Ph.D. Candidate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Kowloon 999077, Hong Kong (corresponding author).
2. Chair Professor and Head, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Kowloon 999077, Hong Kong.
3. Assistant Professor, College of Civil Engineering, National Univ. of Sciences and Technology, Risalpur Campus 24080, Khyber Pakhtunkhwa, Pakistan.
4. Manager Contracts Administration, Infrastructure Development Authority of Punjab, Lahore 54660, Pakistan.
5. Lecturer, School of Energy, Construction and Environment, Coventry Univ., Coventry CV1 5FB, UK.