Abstract
To prevent fall accident that occur when elders use mobility devices in pedestrian space, a driving assistance system is required. The objective of this research is to clarify the requirements for such system and construct a driving assist system based on requirements. First, we extracted environmental elements which causes fall accident from mobility scooter’s drive recorders and recorded the driving environment and user’s operation. Among the environmental elements, we especially focused uneven roads which cause failure in prospecting vehicle motion for users. We propose a driving fall risk evaluation method based on prospecting vehicle motion at prospective waypoint by calculating positions of the wheels using an elevation map. We verified the effectiveness of the proposed method in uneven road using a mobility scooter.
