Study of the Appropriate Bicycle-Approach-Notification Timing Presented in Car-to-Bicyclist V2X System

Abstract

In a driver assistance system, the information presented at inappropriate timing reduces reliability and acceptability. Therefore, we conducted a DS experiment to investigate the relationship between the necessity for notifying approaching bicycles and their position and speed. As a result, it was found that whether or not the notification is judged appropriate could be estimated by the TTC of the bicycle. it was also found that informing the reason is effective to help prevent distrust when the bicyclist changed his/her path after the notification.