Length of road where two cameras are used to measure the average speed of a vehicle between two points
Warning of average-speed cameras over the next section of road. This sign is common on smart motorways and average-speed enforcement zones. In the theory test it tests your understanding of average-speed cameras and the need to maintain a steady speed throughout the zone. Always keep to the speed limit for the entire length.
- Shape
- Rectangular
- Background
- White
- Border
- Grey/Black
- Text type
- Other
- Primary symbol
- Other
- Diagram reference
- 878.0
Where you'll see this sign
Smart motorways and average-speed enforcement zones.
Test yourself on UK road signs
How well do you really know your road signs? New Driver Hub's free mock theory test pulls from official-style DVSA questions and tells you which signs you keep getting wrong.
