1. Assistant Professor of Engineering Management, Dept. of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson Air Force Base, OH 45433 (corresponding author).
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana-Champaign, 205 N. Matthews Ave., Urbana, IL 61801.
3. Program Manager, US Army Corps of Engineers, Construction Engineering Research Laboratory, Engineer Research and Development Center, 2902 Newmark Dr., Champaign, IL 61826.
4. Civil Engineer, US Army Corps of Engineers, Construction Engineering Research Laboratory, Engineer Research and Development Center, 2902 Newmark Dr., Champaign, IL 61826.