Effects of Missed Alarms on Driver's Response to a Collision Warning System According to Alarm Timings

摘要

By using a driving simulator, two kinds of alarm timing were compared to investigate how drivers respond to missed alarms regarding different alarm timings: (1) an alarm was given based on ordinary braking behaviour for the individual; alarm timing T, (2) an alarm was given by using an particular alarm trigger logic (Stopping Distance Algorithm) as a common timing for all drivers; alarm timing S. Alarm timing S was earlier than alarm timing T in this study. The results showed that compared to alarm timing T, alarm timing S induced earlier braking behaviour independent of degree to which an imminent collision was critical. However, effects of a missed alarm on braking behaviour may be mitigated by alarm timing T, compared to alarm timing S. Moreover, it is possible that effect of missed alarm on driver's trust may vary according to alarm timings and the number of experience of missed alarms.