Abstract
The purpose of this investigation was to propose an automobile that decreases the impact of collision on pedestrians in traffic accidents. It was found that many pedestrians involved in the accidents were hit their head with the front part of cars and died of impact on the head area. Therefore we aimed to reduce the impact by improvement of the front shape. To grope for on optimal shape of the front shape, the experiment on collision was practiced with 1/8 scale models. As a result of this, we found that the optimal shape should not only absorb the impact but also hold a pedestrian on the hood of a car. Finally, we proposed the front shape of car and made a clay model according to the necessary requirements.