In Austria, they have signs on the slip roads that say "Falsch" which translates as "Not correct".
But the problem is that, for example, where someone is tired or bored or not paying attention for some other reason, you can have all the warning signs and flashing lights and people will *still* fail to notice them.
Here's a video that someone posted on another forum. There are warning signs, flashing lights etc, yet *still* people manage to wreck their vehicles by trying to drive under a bridge that's too low for them.
https://www.youtube.com/watch?v=USu8vT_tfdw
They built a steel U shape in front of it to prevent the bridge being damaged after too many idiots hit it...
But the problem is that, for example, where someone is tired or bored or not paying attention for some other reason, you can have all the warning signs and flashing lights and people will *still* fail to notice them.
Here's a video that someone posted on another forum. There are warning signs, flashing lights etc, yet *still* people manage to wreck their vehicles by trying to drive under a bridge that's too low for them.
https://www.youtube.com/watch?v=USu8vT_tfdw
They built a steel U shape in front of it to prevent the bridge being damaged after too many idiots hit it...