Highway Economic Requirements System (HERS) Safety Model Assessment and Two-Lane Urban Crash Model

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 mis-prediction in fatalities and injuries, sound information for prioritizing projects with limited funds is essential.