1. Project Manager, Office of Campus Planning, The University of Texas at Austin, 5404 Grover Ave., Austin, TX; formerly, Ph.D. Candidate and Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Carnegie Mellon Univ. (corresponding author).
2. Assistant Professor of Information Systems, H.J. Heinz III College, School of Public Policy and Management, School of Information Systems and Management, Carnegie Mellon Univ., 5000 Forbes Ave., Pittsburgh, PA 15213.
3. Professor and Head, Dept. of Civil and Environmental Engineering, Carnegie Mellon Univ., 5000 Forbes Ave., Pittsburgh, PA 15213.
4. Professor, Dept. of Civil and Environmental Engineering, Carnegie Mellon Univ., 5000 Forbes Ave., Pittsburgh, PA 15213.