One-way traffic
A blue rectangle with a single white arrow indicating direction. The road ahead carries traffic in only one direction — you may not drive against it. Used on town-centre streets, in pedestrian-priority zones, and on parts of the A1 and other historic routes that have been split into one-way pairs.
- Shape
- Rectangular
- Background
- White
- Border
- Grey/Black
- Text type
- Other
- Diagram reference
- 607.0, 652.0
Where you'll see this sign
Town-centre streets, gyratory systems, and historic routes through narrow medieval city centres.
Test yourself on UK road signs
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