PROBLEM TO BE SOLVED: To reduce or prevent traffic accidents by informing a passerby of the approach of an automobile advancing from a road crossing to the progressive direction of the passerby in the passerby in the case of passage at an intersection having inferior visibility at the intersection at night or the like. SOLUTION: Lenses 1A to 1H are installed to the whole circumferences of side faces in a box body 3B made of a firm material not broken by the treading-on of the automobile in a size and a height, which are not a hindrance to the passage of the automobile, reflectors 2A to 2D are mounted in the box body 3 and the box body, to which a box-body upper cover is secured, is set up in the crossed direction of the road intersection at the center of the road intersection. According to the above-mentioned, the traffic accidents can be prevented because the presence of the automobile approaching from the road direction crossing to the progressive direction can be confirmed in the case of passage at the road intersection having inferior visibility at night or the like.
展开▼
