1. Assistant Professor, Industrial and Management Systems Engineering, Kuwait Univ., Khaldyea, 13060 Kuwait, Kuwait (corresponding author).
2. Dean, Graduate School and International Education, 21st Century Professorship in Engineering, Univ. of Arkansas, Ozark Hall 213, Fayetteville, AR 72701.
3. Professor and Chair, AGC-Paul S. Roel Chair in Construction Engineering and Management, Dept. of Civil, Construction, and Environmental Engineering, San Diego State Univ., 5500 Campanile Dr., San Diego, CA 92182.
4. Assistant Professor, Dept. of Civil, Construction, and Environmental Engineering, San Diego State Univ., 5500 Campanile Dr., San Diego, CA 92182.