The total number of fatalities in traffic accidents in Japan is decreasing due to the spread of traffic safety measures and the development of safety equipment for automobiles. However, there are still many fatalities in traffic accidents while riding automobiles. In this study, we conducted a demonstration experiment of traffic safety measures in the vicinity of an intersection with a high risk of rear-end collision, which has a slope and a curve just before the intersection, verified the

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... and subsequent changes in the vehicle speed and driving position due to the introduction of rubber poles. As a result, the average speed of the car decreased by 2.5km / h at the straight part and 3.5km / h at the curve introduction part. In terms of vehicle type, the speed of the straight part of small cars / normal cars decreased by about 5.0km / h. In addition, the driving position is about 30 cm away from the central lane among all types. As a result of the difference between the average values of the speed before and after each driving position, the average speed was greatly reduced.