1. Ph.D. Student, School of Engineering and Information Technology, Univ. of New South Wales, Canberra, Nothcott Dr., ACT 2600, Australia.
2. Senior Lecturer, School of Engineering and Information Technology, Univ. of New South Wales, Canberra, Nothcott Dr., ACT 2600, Australia (corresponding author).
3. Professor, School of Civil Engineering and Transportation, South China Univ. of Technology, 381 Wushan Rd., Tianhe, Guangzhou 510641, Guangdong, China.
4. Associate Professor, School of Engineering and Information Technology, Univ. of New South Wales, Canberra, Nothcott Dr., ACT 2600, Australia.