Evaluation of Acceptability of Adaptive Proactive Braking Intervention System Based on Risk Map for Elderly Drivers

Abstract

This study aims to confirm the usefulness of adaptation of proactive braking intervention systems to the risk level of the driving environment for improving the reactive factors of acceptability. First, we develop prototypes of adaptive proactive braking intervention systems around non-signalized intersections on community roads. Then, to confirm the effectiveness of adaptation, we conduct user tests, in which 45 elderly drivers participate, on public roads. From comparisons between constant setting and adaptive setting, we confirm that the adaptive setting improves the reactive factors of acceptability, such as reduction in the feeling of impatience and strangeness.

Comparison of Proactive Braking Intervention System Acceptability via Field Operation Tests in Different Regions

“…In the previous studies [14,16,17], we confirmed that the comprehensive factors were positively evaluated; further, it led to the positive evaluation of total system acceptance. However, such evaluations regarding each factor were conducted in the limited preparation stage conditions.…”

“…However, because we did not know how the experimental participants would behave and interact with the proposed system, we conducted the Pre-FOT on the private test course for safety. After that, we conducted Pilot FOTs [9,17] for confirming the unique problems on public roads. The advanced points from Pre-FOTs were that evaluations were conducted on public roads.…”

“…To discuss such complicated acceptability, in our previous study [14], we focused on the following three viewpoints as components of acceptability, and the viewpoint of desire Total FOT Discussion about HUD [10][11][12] Adaptive proactive braking intervention [18] Experimental DS experiment [7] Pre-FOT [15] Pilot FOT [9] Pilot FOT [17] Pre-FOT [16] DS experiment [14] Analyses Basic analyses…”

“…The topics were based on the previous studies findings [14,16,17]. To be more precise, we asked about the following topics.…”