1. Manager of Construction Engineering, PCL Industrial Management, Inc., 5404-99 St., Edmonton, Alberta, Canada T6E 3P4.
2. Ph.D. Candidate, Construction Engineering and Management, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, Alberta, T6G 2G7, Canada.
3. Associate Professor, Construction Engineering and Management, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, Alberta, T6G 2G7, Canada (corresponding author).
4. Associate Professor, Campus Saint-Jean, Univ. of Alberta, Edmonton, Alberta, T6C 4G9, Canada.