1. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering (1372), Colorado State Univ., Fort Collins, CO 80523 (corresponding author).
2. Director, Integrated Decision Support Group; and Professor, Dept. of Civil and Environmental Engineering (1372), Colorado State Univ., Fort Collins, CO 80523.
3. Professor, Dept. of Civil and Environmental Engineering (1372), Colorado State Univ., Fort Collins, CO 80523.