1. Research Assistant, Division of Construction and Management, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907.
2. Assistant Professor, Dept. of Civil Engineering, Santa Clara Univ., Santa Clara, CA 95053.
3. Assistant Professor, Division of Construction and Management, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907 (corresponding author).
4. Associate Professor, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907.