Highway Economic Requirements System: Safety Model Assessment
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2005-05-01
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Abstract:There are many reasons to be concerned with estimating the frequency and social costs of highway accidents, but most reasons are motivated by a desire to minimize these costs to the extent feasible. Competition for scarce resources is a practical necessity, and society seeks to apply those resources where they will do the most good. With highway crashes, given the high costs of misprediction in fatalities and injuries, sound information for prioritizing projects with limited funds is essential. The Highway Economic Requirements System (HERS) model applies crash prediction equations in the context of deciding which kinds of highway improvements are justified for which sections of highway. Thus, it is concerned with the effects of geometric attributes on expected highway accidents.
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