Roundabouts & Mini-Roundabouts
One rule resolves almost every roundabout: give way to your right. Add correct lane choice and signalling and roundabouts stop feeling like a free-for-all.
Roundabouts have a reputation for chaos, but underneath the multiple lanes and exits sits one rule that resolves almost every situation: traffic already on the roundabout, coming from your right, goes first. Learn that, add correct lane choice, and a roundabout stops feeling like a guessing game.
The one rule: give way to the right
Traffic on a UK roundabout moves clockwise, and unless signs or markings tell you otherwise, the rule is simple: give way to traffic already on the roundabout, approaching from your right. As you approach, look right first — if a vehicle is already on the roundabout and would reach your point before you, let it go. Once there's a safe gap, you can enter and start moving with the flow.
Choosing your lane
Most roundabouts are marked with lane arrows on approach, and the general pattern for a simple roundabout with normal lane markings is:
- Left lane — for exits to the left or straight ahead.
- Right lane — for a right turn, or to continue almost all the way round (a U-turn).
Always follow the lane arrows actually painted on the road where they're present — they take priority over this general pattern, since some larger or unusually shaped roundabouts mark lanes differently.
Signalling in and signalling out
Signal on approach the same way you would at any junction — left if you're taking the first exit, no signal (or a left signal held until the exit before yours) if you're going straight ahead, and right if you're turning right or looping almost all the way round. Whatever you signalled on the way in, remember to signal left as you approach your exit, so following traffic and anyone waiting to join knows you're about to leave.
Mini-roundabouts
A mini-roundabout is just a roundabout with a small painted (or slightly raised) circle instead of a full central island — the same give-way-to-the-right rule applies in full. Treat it exactly like a normal roundabout: look right, give way to circulating traffic, and signal in and out. The one geometry point worth knowing: you must keep to the left of the central marking and drive fully round it, even though it's small enough that cutting across can feel tempting — cutting across it is not allowed for cars.
Spiral and multi-lane roundabouts
Larger roundabouts on busy roads sometimes use spiral markings — several lanes that gradually guide you toward your exit as you travel round, rather than a simple left/right split. These can look intimidating the first time, but the underlying rule doesn't change: give way to the right on entry, follow the lane markings actually painted on the roundabout (which will often move you from an inner lane toward an outer one as you approach your exit), and signal left before you leave.
Check your understanding
- Give way to traffic already on the roundabout, approaching from your right, unless signs or markings say otherwise.
- Choose your lane before you arrive: left lane for left/straight-ahead exits, right lane for a right turn or near-full loop, following painted arrows where present.
- Signal on approach and, just as importantly, signal left again before you leave.
- Mini-roundabouts and spiral multi-lane roundabouts use the same give-way-to-the-right rule — just with a smaller island or more lanes to plan for.
Frequently asked questions
Who has right of way on a UK roundabout?
Which lane should I use on a roundabout?
Do mini-roundabouts follow the same rules as normal roundabouts?
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