Lane closed ahead vehicles must move to the next lane on the left
Warning that a lane is closed ahead and you must move left. This sign is common at roadworks and tidal-flow sections. In the theory test it tests your understanding of lane closures and the need to merge in good time. Always check mirrors and signal early.
- Diagram reference
- 5005.1, 5005.0
Where you'll see this sign
Roadworks and tidal-flow 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.
