1. Ph.D. Candidate, School of Business, IT and Logistics, RMIT Univ., Melbourne, VIC 3000, Australia (corresponding author).
2. Senior Lecturer, Dept. of Civil Engineering, Monash Univ., Melbourne, VIC 3800, Australia.
3. Associate Professor, School of Business IT and Logistics, RMIT Univ., Melbourne, VIC 3000, Australia.
4. Associate Professor, School of Civil Engineering, Univ. of Sydney, Sydney, NSW 2006, Australia.