In this study, with the overall goal object to determine the desired field of view for motorcycle rear-view mirrors, the role of the direct rearward field of view by head check and the role of the indirect rearward field of view by mirror check were examined. The following three research items were selected: (1) Head check duration and frequency, mirror check duration and frequency, category judgement for the rearward field of view were obtained on actual roads using a test motorcycle with various rear-view mirror fields of view and a test car with typical rear-view mirrors. (2) The ratio by number of riders who used the direct rearward field of view by head check was measured with a sample of riders in typical traffic situations, such as lane changes and lane merges, in which the rider needed rearward information. (3) The limits of the direct rearward field of view by head check within which the rider could perceive a following car were measured. As the results of these studies, some considerations for the future regarding performance requirements (required field of view) and design requirements (i.e. rear-view mirror curvature, size and mounting position) are suggested. (A) For the covering abstract of the conference, see IRRD 837684.
Abstract