Estimating the potential safety benefits of intelligent transportation systems : working paper
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Estimating the potential safety benefits of intelligent transportation systems : working paper

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    The purpose of this paper is to present estimates of potential safety benefits resulting from full implementation of Intelligent Transportation Systems (ITS) in the United States. These estimates were derived by integrating results from a number of different sources including field operational tests, model deployments and simulation studies. In this paper, the safety benefits metrics used are reductions in fatal crashes and injury crashes. The estimates presented in this paper are based on an assumption of 100 percent market penetration of the ITS technologies or user services in an unspecified future time-frame. As such, they represent long run estimates of what can be achieved as ITS implementations take place. These simplifications were made to facilitate a first cut at obtaining an estimate for ITS safety benefits. Obtaining an estimate within a specific time context would require additional information regarding the current deployment of the various ITS technologies and assumptions about the projected annual growth of market penetration. In addition, assumptions have to be made about the impacts of ITS for less than 100% deployments, taking into account the complex interactions among users and non-users of ITS equipment and services.
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