Roundabouts: How to Drive Them Without the Guesswork

By the Genesis Driving Academy Team · September 1, 2026

Key Takeaways

Roundabouts have a reputation for being confusing, but almost all of that confusion comes down to three or four rules that nobody ever explained clearly.

• You yield to traffic already in the circle. Nobody in the circle yields to you.
• Pick your lane before you enter, based on where you are leaving.
• Look left as you approach, because that is where traffic is coming from.
• Never stop inside the circle unless something is genuinely in your way.
• If you miss your exit, go around again. Do not cut across.

The one rule that matters most

Traffic already in the roundabout has the right of way. You yield on entry.

That is the whole foundation, and it is why roundabouts work. Because entering traffic is the only traffic that has to wait, the circle itself never locks up. Once you are in, you keep moving.

This is also the rule people violate most often, usually by stopping inside the circle to let somebody else enter. It feels polite. It is not. It backs up everyone behind you and it surprises the driver following you, who reasonably expected you to keep going.

Look left

As you approach the entry, the traffic that can conflict with you is coming from your left. That is where your attention belongs.

This feels backward to drivers used to four-way intersections, where you scan both directions. At a roundabout entry, a vehicle to your right is either leaving or is in a lane that does not affect you. Watch left, find your gap, and go.

You do not need a huge gap. Roundabouts are designed for low speeds, usually somewhere between fifteen and twenty-five miles per hour, so a gap that would feel tight on a highway is comfortable here.

Pick your lane before you enter

Multi-lane roundabouts are where most of the real trouble happens, and the fix is entirely about what you do beforehand.

Read the signs on approach. Most multi-lane roundabouts have a lane-use sign or pavement markings showing which lanes serve which exits.

As a general pattern, the right lane serves the first exit and often the second; the left lane serves the later exits and the full loop. Follow the posted markings over any general rule, because layouts differ.

Get into your lane early. Changing lanes inside a roundabout is the single most common cause of collisions there.

Stay in your lane all the way around. Treat the lane lines in the circle the way you would treat lane lines anywhere else.

Signal on the way out, not on the way in

Signal right as you pass the exit before yours. That tells the driver waiting at the next entry that you are leaving, which lets them go.

Do not signal left on entry. It confuses people, and it is not what other drivers are looking for.

If you miss your exit

Go around again.

That is genuinely the answer, and it is not embarrassing. Cutting across a lane to catch an exit you have already passed is how a minor navigation mistake turns into a collision. Another lap costs you about fifteen seconds.

Trucks, bikes and pedestrians

Large vehicles often need more than one lane in a roundabout, which is why many have a raised apron around the center island for trailers to track over. Give trucks room and do not pull alongside one in a circle.

Cyclists may take the full lane, which is the safest position for them because it keeps them visible. Give them the lane.

Watch the crosswalks at every entry and exit. Pedestrians cross at the splitter islands, and drivers looking left for a gap sometimes roll forward into a crosswalk without checking what is directly in front of them.

Why they exist

Roundabouts remove the highest-risk conflict at a traditional intersection: the high-speed, ninety-degree, T-bone collision from someone running a light. Everything in a roundabout moves in the same direction at low speed, so the crashes that do happen tend to be minor side-swipes rather than severe ones.

Once the yield rule makes sense, they stop feeling like a puzzle and start feeling like what they are, which is a slow, continuous intersection that rarely makes you stop at all.