In roundabout driving, you should decide your lane before entering the roundabout.

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Choosing your lane before entering a roundabout is about lane discipline and planning your path. When you approach, look for lane markings and signs to decide which lane will take you to your intended exit. Pick that lane and stay in it as you circulate, signaling when you exit. Changing lanes inside the roundabout creates conflicts with other vehicles and can cause a crash, so it’s safer to commit to a lane ahead of time.

If you wait until inside the roundabout, or try to decide at the exit, you’re more likely to weave or merge abruptly, which disrupts traffic and increases risk. It’s not optional to choose a lane—having the correct lane mapped out before entry keeps the flow smooth and helps you reach your chosen exit safely.