1. Dept. of Infrastructure Engineering, Univ. of Melbourne, Melbourne, VIC 3010, Australia (corresponding author).
2. Associate Professor, Dept. of Infrastructure Engineering, Univ. of Melbourne, Parkville, VIC 3010, Australia.
3. Professor, Faculty of Engineering and Industrial Sciences, Swinburne Univ. of Technology, Hawthorn, VIC 3122, Australia.
4. Managing Director, Australia Xing One Pty Ltd., Footscray, VIC 3011, Australia.