1. Professor, School of Built Environment, Curtin Univ. of Technology, GPO Box 1987, Perth, Western Australia 6845, Australia (corresponding author).
2. Senior Lecturer, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough, Leicestershire LE11 3TU, U.K.
3. Professor, MIRVAC School of Sustainable Development Business, Technology and Sustainable Development, Bond Univ., Gold Coast, Queensland 4229, Australia.
4. Professor, School of Property, Construction and Project Management, Royal Melbourne Institute Technology Univ., P.O. Box 2476V, Melbourne, Victoria 3001, Australia.