Information Sharing to Improve Understanding of Proactive Steering Intervention for Elderly Drivers

摘要

In this study, we focus on the effectiveness of information sharing as a practical method for improving elderly drivers’ understandingof a proactive steering intervention system that is triggered several seconds before a driver enters a dangerous situation. Because thesituation of steering intervention is more complex than that of braking intervention, there are two characteristic topics to beinvestigated: prevention of information overload by provided visual contents, and reduction of subjective strangeness due to thesteering intervention. At first, we implement four kinds of prototypes of visual content for the head-up display. After that, weinvestigate basic characteristics of various usages of the implemented prototype visual content using questionnaires. As a result ofour experiments using a driving simulator, we confirm that information sharing using visual content is effective in improving elderlydrivers’ understanding of benefits, trust, and reducing the feeling of strangeness of our system. In addition, from the comparisonsbetween single and multiple uses of visual content, we propose methods to improve them further to prevent information overload.