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Examining actual hazard analyses conducted by state and local emergency
management
programs in the United States shows that a variety of
methods of quantitative or quasi-quantitative methods are in use:
… Rating each hazard by the number
of key factors that are present in the hazard,
… Assigning a spread of points to
each key factor and then using the cumulative value as the
basis for rating, and
… Using mathematical formulas to represent the interactions between the various factors in the hazard. The following three slides provide examples of how these methods might be applied to a scenario using the factors previously used to characterize a hazard in this lecture. Obviously very different factors could be used by a locality conducting this process based on differing needs and requirements. |