Traffic Mirrors: What kind of Traffic Mirror is necessary to ensure the view across the hill?

You should focus on big traffic convex mirrors because of the distance from the viewer to the object. The convex mirror's diameter needs to be at least 800 mm, and the viewing distance must be 26 meters or more.

The mirror has to be set up on the top of the hill using a stainless steel pipe. It should be turned slightly down from the pipe so the driver on the other side can see the oncoming car across the hill.