The purpose of the current study was to investigate which cognitive functions and personalities were related with the occurrence of the inattentive following in right-turn driving in intersections. Ten subjects drove the fixed routes in downtown city more than 35 times. Inattentive following was defined as the followings in the HQL driving database: 1) the number of visual safety confirmation decreased and 2) the speed at the maximum steering angle increased with a precedent right-turning car, compared to without it. These types of inattentive following are unsafe driving, and could lead to accidents. Subjects also participated in cognitive function experiment (Operation-span working memory) and answered personality questionnaires (independent – interdepen dent construal of the self, emotional empathy，impulsiveness etc.). Results indicated that subjects with low operation-span working memory, high interdependent construal, high impulsiveness, and high emotional empathy showed the trend of the inattentive followings in right turn driving situations.