I’ve seen it lots of times on the highway, it looks like the sorting hat of hogwarts, there’s a green and a red version of it, and sometimes it appears with a vehicle on the left side, like in this picture. I’m very curious, can you help?

by NegotiationOk1170

2 comments
  1. It’s for snow plow drivers. At the red sign they have to stop pushing the snow off the side, usually because there is a road, railway or whatever below it and you don’t want unnecessary amounts of snow falling down and at the green sign they can push it off the side again.

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