The purpose of this study was to empirically examine the psychological factors influencing the shortcutting behavior of older drivers in turning right at intersections.　Dash cams were installed in the private cars of 49 older drivers, who visited Clinic B in Prefecture A, to record their daily driving behaviors, particularly analyzing their shortcutting behavior when turning right at intersections.　Results showed that participants generally tended to engage in shortcutting behavior and the degree of shortcutting was significantly associated with several driving behaviors such as speeding when entering the intersection.　In addition, participants’ driving performance evaluated by the instructor at a driving school was also negatively associated with shortcutting behavior.　The findings of this study suggest the need for education for drivers, regarding the appropriate manner of turning right at intersections.　One of the major limitations of this study is the generalization of the findings associated with the selection bias.