1. PhD Graduate, Dept. of Civil and Environmental Engineering, Univ. of Cincinnati, Cincinnati, OH 45219. E-mail: abuhama@email.uc.edu
2. Associate Professor, Division of Construction Engineering and Management, 550 Stadium Mall Dr., Purdue Univ., West Lafayette, IN 47907-2051 (corresponding author). E-mail: hastak@ecn.purdue.edu
3. Professor, Construction Management, Michigan State Univ., East Lansing, MI 48824. E-mail: syalm@egr.msu.edu