1. Wind Hazard Modeling and the HAZUS Wind Model Part III
CE 4445 Lecture 3
Wind Hazard Modeling and the HAZUS Wind Model Part III
Carol Hill
Louisiana State University
November 15, 2004

2. What are Models Used For?
Planning
Pre-Disaster Preparedness
Disaster Response
Community Rebuilding

3. Who Needs Modeled Scenario Information?
Community Planners
Local, State, Federal Officials
Emergency Managers/EOC
Who Else?

4. Available Reports
HAZUS Wind Model

5. Total Community Building Exposure

6. Residential Dollar Exposure

7. 100 Year Event Wind Speeds

8. Total Loss – 100 Year Event

11. Hospital Loss of Use (Days)

13. Brick and Wood Debris – Tons

14. Tree Debris - Tons

19. Fully Mitigated Example
Mitigation Strategy
Fully Mitigated Example

21. Storm Shutters

22. Roof-Wall Connection Straps

23. Secondary Water Resistance

24. Percent Decreases in the Per Storm Average Building Damage State Due to Mitigation (Minimum/Average/Maximum) – Residential Buildings
Mitigation Strategy
Decrease in Per Storm Average Damage State
Install Shutters
6% / 15% / 23%
Upgrade to Dade Roof*
18% / 27% / 44%
Install Shutters and Upgrade to Dade Roof*
45% / 52% / 59%
*Dade County roof sheathing nail pattern, install more wind-resistant shingles and apply secondary water resistance

25. Baton Rouge Mitigated Scenario
CE 4445 Lecture 3
Baton Rouge Mitigated Scenario

26. Non-Mitigated Losses

27. Summary

28. Summary
GIS is a powerful tool to spatially display, interpret, manipulate data
Model results can only be as good as model inputs
HAZUS is a powerful, calibrated, engineering-based load vs. resistance model that provides tools for understanding building damage

29. Summary Judgment is still needed for analysis
As more powerful tools are available, the information needs of agencies and organizations increase
Incorporation of modeled damage results into building codes (i.e. Mitigation Strategies) may prevent damage and loss

30. Questions?