The roundabout ahead warning sign displays three black arrows forming a clock-wise circle within a red warning triangle.
It warns drivers to slow down and decide on lane positioning before reaching a circular junction.
What this sign means
This sign alerts road users to a roundabout junction ahead, where traffic moves in a clockwise direction around a central island.
- Red triangle warning boundary
- Three black circular arrows
- Indicates circular junction control ahead
What to do when you see it
Check mirrors, adjust speed, and choose the correct lane early based on your intended destination exit.
- Yield right-of-way to traffic approaching from your right
- Select correct gear before entering the roundabout
- Signal appropriately on approach and exit
How this sign is tested
Theory exams test lane selection for taking different exits, priority rules, and signal usage at roundabouts.
Common mistakes
Failing to give way to traffic already circulating from the right, or entering in the wrong lane for the desired exit.
Test yourself on this one
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Practise road sign questionsFrequently asked questions
Who has priority at a UK roundabout?
Traffic approaching from your right circulating on the roundabout has priority.
Do I need to signal when going straight ahead at a roundabout?
Signal left after passing the exit before the one you intend to take.
What should I do at mini-roundabouts?
Apply the same rules: give way to the right and pass around the central marking.