The goal of this research is to develop the Tornado-Community Vulnerability-Impact Index (TCVII) that utilizes variables such as the number of persons killed, economic impacts, and social vulnerability to describe to what level a tornado event has impacted a community. If pre-event vulnerability is to be determined by such factors, post-event impact should, at least in part, be as well.
The behavior of residents in the community, construction quality of shelters, and warning system effectiveness also affect vulnerability. Pre-event vulnerability to a natural hazard is determined by many factors, such as age, race, income, and gender. Classifications for natural disasters, such as the Fujita Scale for tornadoes and the Saffir-Simpson hurricane scale, focus on the physical properties of the event, not the impact on a community.
"Given the recent recognition that not only physical processes, but social, political, and economic aspects of hazards that determine vulnerability and impact of an event, the next logical step would seem to be the development of classification systems that address those factors.
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