Estimates of accident savings ascribed to the intelligent vehicle-highway system (IVHS) and IVHS devices have been published by mobility 2000. These estimates were obtained through the use of expert judgement applied to various configurations of accidents, for which data are available in standard sources. Similar work has been done in europe. The availability of in-depth data sets and other more detailed sources enabled estimates to be made on a quantitative basis. Methods used in European and U.S. Work are discussed, and results are compared. An account is given of a possible development of the evaluation technique that can provide greater precision and might facilitate the choice between different realisations of the same requirement. Finally, the possibility of interactions among different devices on the same or different vehicles that might hinder safety is identified. The need for systematic configuration management of IVHS is emphasised.
Samenvatting