Acceptability of a Proactive Braking Intervention System by Elderly Drivers Using an Actual Vehicle

Abstract

To evaluate the acceptability by elderly drivers of a proactive braking intervention system, we conducted an experiment using an actual vehicle, which could control velocity autonomously, on a test track. After driving the experimental vehicle, the participants evaluated acceptability from various aspects by subjective questionnaires. From the results of 21 elderly drivers, we confirmed the following tendencies: partly negative evaluations for reactive factors, positive evaluations for comprehensive factors, and positive evaluations for total acceptance. In addition, from the results of the trials in which we used head-up display, we confirmed that an information sharing system could improve the evaluations of reactive factors.