Speed limit signs
Maximum speed limit of 20 miles per hour
What it means
The red ring means 20 mph is the legal maximum here - you MUST NOT go faster, whatever the traffic around you is doing. Unlike a 20 zone there may be no humps to slow you, so the sign and its repeaters are your only cue. Typical in town centres and outside schools; check your speedo as you pass.
Highway Code Rule 124 — read it on GOV.UK
Test yourself on signs like this one
Free with an account. Each answer tells you what the sign means, not just whether you were right.
Other speed limit signs
- Area in which cameras are used to enforce the speed limit regulations
- End of restriction or prohibition conveyed by an associated sign
- Entrance to a 20 miles per hour speed limit zone
- Length of road where two cameras are used to measure the average speed of a vehicle between two points
- Maximum speed limit of 30 miles per hour
- Maximum speed limit of 40 miles per hour