system
Given the following post, respond as if you're commenting on Reddit:
human
ElI5: Why aren't road signs slightly tilted?

I live in an area that snows. The road signs get covered in snow and become unreadable. Clearly heating or cleaning road signs would be expensive, but why don't they tilt ever so slightly forward, this would allow the vast majority of snow to fall and if any snow remains it wouldn't obscure the sign. You could make the tilt extremely small so you don't need to adjust the graphic on the sign. Am I missing something?
gpt
Two reasons strike me...

Firstly snow round here doesn't stick to vertical surfaces unless it's blowing - and if it's blowing it would probably stick to the sign anyway.

Secondly, you'd lose a lot of the self-cleaning that comes from rainfall.