Distance of 1/2 mile of dual carriageway road extends ahead
Sign showing that dual carriageway starts in ½ mile. This sign is common on approaches to dual carriageway sections. In the theory test it tests your understanding of road layout changes and the need to adjust speed and positioning. Always prepare for the change in road type.
- Shape
- Rectangular
- Background
- Blue
- Border
- White
- Text type
- Number (Distance)
- Diagram reference
- 818.11
Where you'll see this sign
Approaches to dual carriageway sections.
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.
