1. Lecturer, Dept. of Civil and Construction Engineering; Centre for Sustainable Infrastructure, Swinburne Univ. of Technology, Melbourne, VIC 3122, Australia (corresponding author).
2. Project Engineer, KAEFER Integrated Services Pty Ltd., Kewdale, WA 6105, Australia.
3. Professor and Woodside Chair, School of Built Environment; Australasian Joint Research Centre for Building Information Modelling, Curtin Univ., GPO Box U1987, Perth, WA 6845, Australia; Dept. of Housing and Interior Design, Kyung Hee Univ., Seoul 130-701, Korea.
4. Associate Professor, School of Computing, Engineering and Mathematics; Institute for Infrastructure Engineering, Western Sydney Univ., Locked Bag 1797, Penrith, NSW 2751, Australia.