1. Ph.D. Candidate, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia (corresponding author).
2. Senior Lecturer, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia.
3. Professor and Director, Research Centre for Integrated Transport Innovation, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia.