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Ahead only
A blue circle with a white arrow pointing straight up. A mandatory instruction — you must continue straight ahead and may not turn left or right at the junction or side road. Often paired with right- or left-turn prohibitions on the same junction approach. The blue circle with white symbol pattern is the standard for any mandatory action.
- Shape
- Circular
- Background
- Blue
- Border
- White
- Primary symbol
- Arrow
- Diagram reference
- 606
Where you'll see this sign
Approaches to T-junctions where turning isn't allowed, on one-way street approaches, and at junctions where adjacent side roads are residents-only or pedestrianised.
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