Abstract
Traffic accidents caused by the pedal operation error by the elderly drivers have become social problem, for example the collision with structure, vehicle or pedestrian. It is generally known that due to the weakening of the flexibility of the elderly's body, the angle at which the knees are placed inside decreases. As the result, in the sitting posture of elderly drivers, there is a difference in the posture of the legs with non-elderly drivers. This may be the hypothesis that it is one of the major causes of the increase in pedal operation errors by them. In this study, we focused attention on the posture of the leg when parking the vehicle with backward movement, and visually checked the sitting posture of the driver's leg and the behavior of the right foot, the driving in simulating the rearward turning motion experimentally verified by twisting the waist of a person. As this check, it is clarified the relationship between the posture of driver's leg or right foot and the foot location area on the brake pedal, which are assumed making effects of pedal operation error.
