A study investigated how education improves hazard perception among motorcycle riders.　Participants （n=63） were divided into a self-learning education group （n=30） and a discussion education group （n=33）.　Both groups took a hazard perception test before and after the education using a tablet-based application that displayed hazardous scenarios.　The self-learning group used the application for 45 minutes and reviewed the test video and instructions.　The discussion group participated in a 60-minute instructor-led discussion of the two test videos.　After the education, both groups showed significant improvements in hazard perception, including faster reaction times and more accurate identification of collision hazards.　After the experiment, some participants from the self-learning and discussion groups were interviewed.　Although participants in both groups showed a tendency to recognize the importance of hazard prediction education and to increase their safety awareness, they were less motivated to learn voluntarily.　These findings suggest that, despite challenges in motivating learning, tablet-based self-learning hazard perception education might be effective in a delivery company using motorcycles that can manage riders who are employees and in countries with underdeveloped licensing education systems and road safety education.

Children’s knowledge of various aspects of traffic safety is a fundamental factor in promoting appropriate road behaviors.　In this study, we investigated children’s knowledge of various aspects of traffic safety according to their developmental stages and the effects of road safety education using a visual-audio teaching aid on their knowledge.　Ninety children between the ages of 4 and 12 years were asked to answer questions about the meaning of road signs, the most common causes of accidents involving children, how to cross the road, and hazardous traffic situations before and after the education using the visual-audio teaching aid.　The educational tool used in this study was a movie approximately 12 minutes in length, and 21 slides consisting of text, diagrams and audio commentary were added in the form of a voice reading out the contents of each slide.　The results of this study showed that children’s knowledge of various aspects of road safety and the effectiveness of visual-audio teaching aids varied by age.　The study also discussed the importance of age-specific education for children to acquire comprehensive traffic safety knowledge.