1. Affiliate Assistant Professor, Dept. of Construction Management, Univ. of Washington, Seattle, WA 98195; and Associate Professor, Dept. of Structural Engineering, Cairo Univ., Giza 12316, Egypt (corresponding author).
2. Ph.D. Candidate, Dept. of Industrial and Systems Engineering, Univ. of Washington, Seattle, WA 98195.
3. Assistant Professor, OHL School of Construction, Florida International Univ., Miami, FL 33174.