Abstract
A methodology is developed in which the costs and effectiveness of various highway safety facilities and programs may be compared so that the relative desirability of mutually exclusive alternatives may be established. Unlike the warrant system currently so widely used for this purpose, the methodology does serve to relate the various consequences of investments in a common dimension in order to maximize the net benefits to the society represented by the agency. Specific application of the methodology is demonstrated by reference to two safety countermeasure programs viz., median barriers (solved manually) and traffic control devices (solved by use of digital computer).