Abstract
We investigated the effectiveness of collision avoidance assistance system in a driving simulator. In this study, we analyzed the combined error frequency of a man-machine system, with respect to driver performance and system reliability. In the analysis of driver performance, braking timing to avoid the collision both in normal operation and malfunction of collision avoidance assistance system were analyzed. In short, not only the positive effects of the driving assistance system but also the negative effects results from driver's excessive dependence on the systems were considered to analyze the combined error frequency. It was revealed that the combined error frequency when the system was used is lower than that when they were not used, even though the drivers' dependence on the warning system (i.e. delay of braking timing to avoid the collision) was observed.
