1. Assistant Professor, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 1 University Station C1752, Austin, TX 78712-0273.
2. Professor and Garry Neil Drummond Endowed Chair, Dept. of Civil, Construction & Environmental Engineering, Univ. of Alabama, 259 H.M. Comer Hall, Tuscaloosa, AL, 35487.
3. MS Candidate, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin, 1 University Station C1752, Austin, TX 78712-0273.
4. Project Engineer, DPR Construction, 9606 N. MoPac Expressway, Austin, TX 78759.