An intelligent cruise control has been studied, and a prototype has been operated in normal traffic in an initial exploration of performance issues bearing upon system requirements. This paper presents the results from field experiments, highlighting the engineering measures needed to characterize system performance under various conditions of road geometry, traffic, maneuvering scenarios, and weather conditions. Experience from driver-controlled tests is presented, depicting various problematic conditions, driver adaptation to the system, individual concerns and reactions, and desired features to improve acceptability. Situational conditions which place special demands upon system performance attributes are detailed. This paper will be useful to any parties concerned with developing, evaluating or specifying intelligent cruise control or other systems in the longitudinal collision avoidance class of functionality. (A)
Samenvatting