Regulatory signs
These indicate what you must do under road traffic law, so all road users must obey them. Regulatory signs are divided into a number of groups:
- Upright signs,
- Road markings and
- Traffic lights.
This section concentrates on regulatory upright signs and road markings. The Traffic lights & signals section covers traffic lights in detail.
Upright signs
What they look like.
These generally come in two formats. Their shape can be circular, octagonal, triangular or rectangular, as shown in the examples below:
- a white background with a red border and black letters, symbols or numbers,
- a blue background with white symbols or letters.











The sign below applies to drivers of HGV's and large non-passenger vehicles. It means that vehicles with the number of axles shown (or more) cannot use the road during the times shown without a permit. You should check the information plate and/or the permit to confirm the time limits and any restrictions that apply.

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