Co-operative vehicle-highway systems offer the potential to enhance the effectiveness of active vehicle safety systems which have entered the marketplace for light vehicles and heavy commercial vehicles. Co-operative intelligent vehicle-highway systems (CIVHS) offer an improved level of overall functionality. These systems are co-operative in that the vehicles can receive information from the roadway and respond appropriately, and vehicles can detect and report hazards to the roadway, for dissemination to other travellers. The systems are intelligent in that the ultimate response is determined by algorithms which weigh multiple parameters. This paper describes the results of a study to collect information on the various forms of co-operative IVHS world-wide, and assess R&D activities, deployment issues, standards development, and government policies. An extensive set of parameters which may pass between the vehicle and its external environment are listed. Potential human factors implications are identified, resulting from the emergence of these driver assistance systems into the marketplace.
Abstract