1. Lecturer, School of Property, Construction and Project Management, RMIT Univ., Bldg. 8, Level 8, Room 67, 360 Swanston St., Melbourne, VIC 3000, Australia.
2. Research Fellow, School of Social and Political Science, Univ. of Edinburgh, Chisholm House, High School Yards, Edinburgh EH1 1LZ, UK.
3. Senior Lecturer, Dept. of Engineering and the Built Environment, Anglia Ruskin Univ., Bishop Hall Ln., Chelmsford CM1 1SQ, UK.
4. Senior Lecturer, School of Engineering, Univ. of Edinburgh, William Rankine Bldg., Edinburgh EH9 3FG, UK (corresponding author).