1. Forensic Claims Consultant and Chartered Surveyor, School of Built Environment, Univ. of Salford, Salford M5 4WT, U.K. (corresponding author).
2. Associate Professor, Dept. of Construction Management, School of Built Environment, Curtin Univ., Western Australia 6102, Australia.
3. Senior Lecturer, Dept. of Civil and Environmental Engineering, Univ. of Auckland, Auckland 1145, New Zealand.