1. Postgraduate, Faculty of Built Environment, Univ. of New South Wales, Sydney, NSW 2052, Australia.
2. Professor, School of Built Environment, Curtin Univ., GPO Box U1987, Perth, WA 6845, Australia; and International Scholar, Dept. of Housing and Interior Design, Kyung Hee Univ., Korea (corresponding author).
3. Associated Professor, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia.
4. John Curtin Distinguished Professor, School of Built Environment, Curtin Univ., GPO Box U1987, Perth, WA 6845, Australia.