1. Ph.D. Candidate, Dept. of Civil Engineering, School of Civil and Mechanical Engineering, Curtin Univ., Kent St., Bentley, Perth, WA 6102, Australia.
2. Senior Lecturer, Dept. of Civil Engineering, School of Civil and Mechanical Engineering, Curtin Univ., Kent St., Bentley, Perth, WA 6102, Australia; Adjunct Professor, Dept. of Civil Engineering, Faculty of Engineering, Chiang Mai Univ., Huai Kaew Rd., Muang, Chiang Mai 50200, Thailand (corresponding author).
3. Professor and Deputy Head of Department, Dept. of Civil Engineering, Monash Univ., Clayton Campus, Melbourne, VIC 3800, Australia.
4. Lecturer, Dept. of Civil Engineering, Monash Univ., Clayton Campus, VIC 3800, Australia.
5. Secretary General, Hong Kong Transport and Road Research Institute, Mongkok, Kowloon, Hong Kong.