A study on improving the visibility of bicycle road safety sign

In South Korea, personal mobility devices such as bicycles have recently gained attention due to air pollution concerns and eco-friendly policies.. However, as of 2023, bicycle paths in Seoul only account for 15% of all roads, and more than 10% of bicycle accidents in 2022 occurred while cyclists were walking or crossing the sidewalk. Since bicycles are legally prohibited from riding on sidewalks, there is an increasing need to improve bicycle traffic safety signs to ensure safe riding. This study assessed the condition of various bicycle traffic safety signs on road and surveyed bicycle users to evaluation their visibility when riding. The evaluation criteria included visibility, information usefulness, and color contrast. The findings showed that the effectiveness of signs is influenced by the use of colors and reflective materials that stand out from the surrounding environment. Based on these results, new design direactions were proposed to enhance bicycle safety. The outcomes of this study are expected to serve as foundational direaction of improvements for reducing bicycle-related accidents and promoting the use of bicycles.