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What do you need to know when navigating roundabouts?

Road rules: how to navigate roundabouts

Many drivers make mistakes when it comes to roundabouts. We outline what you need to know. 

How to use roundabouts

When you approach a roundabout, you must always give way to all vehicles coming from your right, including cyclists and motorcyclists. This applies whether you're turning left, going straight or turning right. Keep your speed down, check all approaches carefully and be ready to stop.

Roundabout

Using indicators properly

Using your indicators correctly helps others understand your intentions and improves the overall flow of traffic.

  • Turning left: Signal left as you approach and stay in the left lane if there’s more than one.
  • Going straight: Don’t signal as you enter, but signal left once you’ve passed the exit before yours.
  • Turning right (or doing a U-turn): Signal right as you approach and signal left once you pass the exit before the one you want.

Multi-lane roundabouts

When a roundabout has multiple lanes, make sure you're in the correct one before entering. Road markings and signs will usually guide you. Stay in your lane once inside the roundabout – weaving across lanes is both dangerous and illegal.

Roandabout aerial

Give cyclists and large vehicles space

Cyclists are allowed to use the full lane in a roundabout, and drivers must not attempt to squeeze past them. Likewise, larger vehicles like buses and trucks may straddle lanes, so give them room and don’t cut in front.

Stay alert

Roundabouts require your full attention. Keep an eye on merging traffic and be prepared to give way even if you think you have priority – you can’t assume others will follow the rules.

Roundabouts are safer when everyone understands how they work. Take your time, signal clearly, and drive considerately, it all helps to keep our roads running smoothly.

This story is from the Spring 2025 issue of AA Directions magazine.