1. PhD, P.Eng., The Construction Administrator, Toronto District School Board, 15 Oakburn Crest, Toronto ON, Canada M2N 2T5.
2. PhD, P.Eng., Associate Professor of Construction Management, Civil Engineering Dept., Univ. of Waterloo, Waterloo ON, Canada N2L 3G1 (corresponding author).
3. PhD, Assistant Professor, Structural Engineering Dept., Mansoura Univ., Mansoura, Egypt; presently, Visiting Professor, Civil Engineering Dept., Univ. of Waterloo, Waterloo, ON, Canada 2NL 3G1.