What it means
Temporary Prohibition: You MUST NOT exceed the speed shown. Speed limits are often reduced near roadworks for the safety of workers.
What to do
- Stay at or below the number shown for your class of vehicle unless a lower limit applies.
- In rain, gravel, traffic, or near schools, drive under the limit if that is what is safe.
- Conditions have changed here: obey this temporary sign even where it contradicts the permanent signs you know.
In the K53 test
Yellow background means temporary: it overrides the permanent version wherever they disagree. The figure is a ceiling, not a target. Questions often punish “always drive at the limit”.
Where you will see it
On any public road; the limit applies from the sign onward.
