1. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering, Univ. of Alberta, 5-047, Markin/CNRL Natural Resources Engineering Facility, 9105 116th St., Edmonton, Alberta, Canada T6G 2W2; formerly, Ph.D. Candidate, Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hong Kong SAR, China.
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, 3-009, Markin/CNRL Natural Resources Engineering Facility, 9105 116th St., Edmonton, Alberta, Canada T6G 2W2; formerly, Associate Professor, Construction Engineering and Management, Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hong Kong SAR, China (corresponding author).
3. Professor, Dept. of Land Surveying and Geo-informatics, Hong Kong Polytechnic Univ., Hong Kong SAR, China.