Number of lanes of traffic lanes ahead on a dual carriageway reduces from three lanes to two. Traffic in the right hand lane must move into the lane on the immediate left
Warning that lanes reduce from three to two ahead. This sign is common on dual carriageways. In the theory test it tests your understanding of lane reductions and the need to merge in good time. Always check mirrors and signal early.
- Shape
- Rectangular
- Background
- White
- Border
- Grey/Black
- Primary symbol
- Arrow
- Diagram reference
- 872.1
Where you'll see this sign
Dual carriageways.
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.
