1. Lecturer, School of Civil Engineering and Built Environment, Gardens Point Campus, GPO Box 2434, Queensland Univ. of Technology, Brisbane QLD 4001, Australia (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z4.
3. Associate Professor, Dept. of Computer Science, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z4.
4. Systems Developer Analyst, Broadridge Financial Solutions, Inc., Vancouver, BC, Canada.