A circular blue sign showing white arrows pointing straight up and to the right mandates that drivers proceed straight ahead or turn right.
It prevents left turns into restricted streets, one-way exits, or bus lanes while keeping main traffic moving safely.
What this sign means
Traffic is legally required to proceed straight ahead or turn right.
Turning left at the intersection is strictly prohibited.
- Blue circle with vertical and rightward white arrows.
- Mandatory direction restriction.
- Prevents prohibited left turns into restricted streets or one-way roads.
What to do when you see it
Choose whether to proceed straight or turn right based on your intended route.
Signal right if turning right, or maintain position without indicating if going straight ahead.
How this sign is tested
Theory questions test candidate understanding of permitted directions at multi-lane junctions.
Diagram questions ask which turn is prohibited when approaching this sign.
Common mistakes
Turning left out of habit into restricted side streets.
Failing to indicate right early when preparing to execute the right turn.
Test yourself on this one
Road and traffic signs is the biggest category in the question bank with 102 questions, and signs turn up inside other categories too. Work through them free, no sign-up needed.
Practise road sign questionsFrequently asked questions
Is turning left permitted at this sign?
No, turning left is strictly prohibited.
Where are Ahead or Right Only signs located?
They are located at major junction approaches where left turns enter restricted or dangerous zones.
What colour background do mandatory instruction signs have?
Mandatory instruction signs have a solid blue background with white symbols.