Traffic mirror function
The round mirror on the side of the road plays a role to expand people’s field of vision to avoid traffic accidents when turning, mainly because the line of sight of the vehicle at the turn is not very good, and the vehicle cannot see the curve near the turn. For vehicles on the side of the road, a convex wide-angle lens is added. Through the convex wide-angle lens, you can see whether there are pedestrians or vehicles on the other side of the curve.
It is mostly used in some district road sections with high traffic volume and low speed. At intersections where such mirrors are installed, traffic accidents can be drastically reduced.