Road and traffic signs
What does this sign warn you about?
- No entry from the right
- A layby on the right
- The road narrows on the right aheadCorrect
- Traffic merging from the right
Why?
On this triangular warning sign, only the right-hand line angles in, so the road narrows on the right ahead. The edge closes in — watch for cyclists or vehicles being squeezed towards you. All warning signs share this triangular red-bordered shape.
Highway Code rule Traffic signs