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Table 4 Building Fragility Curves (from Technical Appendix) Structure Slight Moderate Extensive Complete Case A Beta A Beta A Beta A Beta 1. As Is 0.08 0.60 0.12 0.60 0.20 0.60 0.40 0.60 2. Upgraded 0.21 0.50 0.30 0.50 0.90 0.50 1.60 0.50 The resulting seismic damage functions and casualty rates were entered into the FEMA Full Data Module for Benefit-Cost Analysis of Seismic Hazard Mitigation Projects. Similarly, for the after-mitigation state of the buildings, fragility curve based calculations were done and the results input into the Full Data Module. The seismic damage function values (damage as percentage of building replacement value) calculated from the fragility curves are shown below. Table 5 Seismic Damage Functions for Eugene City Hall Building Damage (% of Replacement Value) Before Mitigation After Mitigation FEMA FEMA PGA HAZUS User- Used In HAZUS User- Used In (% of g) Default Entered Calc. Default Entered Calc. 4-8 2.67% 2.56% 2.60% 0.32% 0.02% 0.02% 8-16 15.01% 14.51% 14.89% 3.08% 0.53% 0.53% 16-32 45.18% 43.58% 44.34% 15.45% 4.00% 4.00% 32-55 75.51% 73.74% 73.57% 39.38% 11.17% 11.17% 55-80 90.46% 89.55% 88.79% 61.81% 22.97% 22.97% 80-100 95.73% 95.34% 94.62% 75.29% 36.13% 36.13% >100 98.37% 98.27% 97.79% 85.89% 52.80% 52.80% 4.5 Casualty Rate Estimates Casualty rate estimates for the existing building were calculated directly from the fragility curves (see previous section), using the FEMA Fragility Curve Calculator. Results for the existing building are shown below. After mitigation, the standard FEMA assumptions about the effectiveness of life-safety seismic retrofits (FEMA Full Data Module) were used for benefit-cost analyses.