1. Assistant Professor, Dept. of Construction Management, Brigham Young Univ., Provo, UT 84602.
2. Associate Professor, Myers-Lawson School of Construction, Via Dept. of Civil and Environmental Engineering, Virginia Tech, 310B Bishop Favrao Hall, Blacksburg, VA 24061 (corresponding author).
3. Professor, Urban Affairs and Planning, Virginia Tech, Blacksburg, VA 24061.