Lane control signal indicating that vehicles may not proceed along the lane directly beneath the signal
Lane control signal showing the lane below is closed. This sign is common on smart motorways and tidal-flow systems. In the theory test it tests your understanding of lane control signals and the need to obey the red 'X'. Always move out of the closed lane immediately.
- Diagram reference
- 5003.1, 5003.0
Where you'll see this sign
Smart motorways and tidal-flow systems.
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.
