1. PhD Candidate, Constr. Engrg. and Mgmt., 220, Dept. of Civ. and Envir. Engrg., Univ. of Alberta, Edmonton, AB, Canada T6G 2G7. E-mail: mlu@ualberta.ca
2. Prof. of Constr. Engrg. and Mgmt., NSERC/Alberta Constr. Industry Res. Chair, 220, Dept. of Civ. and Envir. Engrg., Univ. of Alberta, Edmonton, AB, Canada T6G 2G7. E-mail: abourizk@ualberta.ca
3. Tech. Advisor of NSERC/Alberta Constr. Industry Res. Chair, Dist. Constr. Engr. of PCL Industrial Constructors Inc., Edmonton, AB, Canada T6E 3N7. E-mail: rhherrmann@pcl.ca