How to Drive in a Roundabout: Single and Multi-Lane, Step by Step

Why do roundabouts make confident drivers nervous? Mostly because there's no light telling you when to go. You have to read the traffic, pick a gap and commit. Once you know the pattern, though, learning how to drive in a roundabout takes about three trips. The rules are the same almost everywhere in the U.S., and they show up on permit tests in every state.

How to drive in a roundabout in 5 steps

Think of every roundabout as five decisions in a row.

1. Slow down on approach. Watch for the yellow roundabout warning sign and the posted advisory speed, which is usually low. Roundabouts are designed for slow, steady speeds.
2. Choose your lane early. On a multi-lane roundabout, signs and pavement arrows show which lane goes where. Get in the right lane before you reach the entry.
3. Yield at the entry. Traffic already in the roundabout has the right of way. Look left (vehicles circulate counterclockwise in the U.S.) and also yield to pedestrians in the crosswalk.
4. Enter and keep moving. When there's a safe gap, merge in and travel counterclockwise. Don't stop inside unless you must to avoid a collision.
5. Signal and exit. Turn on your right signal as you pass the exit before yours, then watch for pedestrians as you leave.

Single-lane roundabouts

Single-lane roundabouts are the easy ones and the most common in neighborhoods and suburbs. There's one lane in, one lane around, and one lane out.

The main skill here is gap judgment. Look at the car approaching from your left inside the circle. If it's signaling right to exit before your entry, you may be able to go. If there's no signal, assume it's coming past you and wait.

Inside the circle, stay off the central island and the raised "truck apron" around it. That textured ring exists for long vehicles whose rear wheels need extra room. Cars should ride in the normal lane.

Choosing a lane in a multi-lane roundabout

Two-lane roundabouts are where most mistakes happen, and most of them come from late lane changes. The basic pattern works like a regular intersection:

Picture it from above. Coming from the south, the right lane peels off at the first exit (east). Both lanes can carry you straight to the north exit. The left lane keeps you on the inside track until you reach the west exit, or all the way back to the south for a U-turn.

Always follow posted lane signs over any general rule. Some roundabouts have lanes that only go right, or a left lane that can also go straight. Read the arrows before you enter.

Inside a multi-lane roundabout:

• Don't change lanes while circulating.
• Don't pass or drive side by side next to a large truck.
• Exit from the lane you're in. If you're in the left lane and your exit comes up but a car is beside you on the right, go around once more.

Missing your exit isn't a crisis. Just loop around again. That's a perfectly legal and safe move.

Roundabouts vs traffic circles (NJ's old circles)

Not every circle is a modern roundabout. New Jersey drivers know this well, because the state built many large traffic circles in the early and mid-1900s, and the state has removed or redesigned many of them over the years.

The difference matters:

• Modern roundabouts are small, slow, and give priority to vehicles already inside. Entry lanes curve so you naturally slow down.
• Older traffic circles are often large, faster, and may use stop signs or signals at some entries. On some, entering traffic had priority, which flips the normal rule.

When you meet an older circle, obey the signs at that specific entry. If there's a yield sign facing you, yield. If there's a stop sign or a signal, follow it. Our guide to right-of-way rules explains how priority works at other intersection types.

Large trucks, cyclists and pedestrians

Large trucks often need the full width of the roundabout, including the truck apron, and may straddle both lanes of a multi-lane roundabout. Give them room. Never ride alongside a truck inside the circle. Let it go first or hang back.

Cyclists can ride in the lane like a car or use a ramp to the sidewalk where provided. If a cyclist takes the lane, follow behind; don't try to pass inside the roundabout.

Pedestrians cross at marked crosswalks set back from the circle, usually one car length before the yield line and just past the exit. Split islands give them a place to wait between directions. Yield to them both entering and exiting.

Emergency vehicles: If you're not yet in the roundabout, pull over to the right and let the vehicle through. If you're already inside, continue to your exit, then pull over. Don't stop in the circle.

Why roundabouts are safer

Engineers like roundabouts because they remove the most dangerous crash types. There are no high-speed left turns across traffic and no T-bone crashes from someone running a red light. Vehicles move slowly in the same direction, so the crashes that do happen tend to be less severe.

The research backs this up. A well-known study catalogued by the Insurance Institute for Highway Safety looked at intersections converted to roundabouts in the U.S. and estimated a 76% reduction in injury crashes and roughly a 90% reduction in fatal and incapacitating injury crashes. A later IIHS study in Carmel, Indiana, found smaller but still meaningful reductions in injury crashes, with results varying by design. The Federal Highway Administration lists roundabouts as a proven safety countermeasure for this reason.

Practice the rules before you meet a roundabout on the road. Our free practice tests include right-of-way questions like the ones you'll see on the permit test, and you can review 4-way stop rules to round out intersection prep.

Frequently asked questions

Who has the right of way in a roundabout?

Vehicles already circulating have the right of way. Entering drivers yield to traffic on their left and to pedestrians in the crosswalk.

Do you signal when entering a roundabout?

Signal right when you exit. Some states also recommend signaling left on entry if you'll go past the halfway point, but the exit signal is the one drivers rely on most.

Which lane do you use to turn left in a roundabout?

On a two-lane roundabout, the left lane, unless signs show otherwise. Stay in that lane and exit directly from it.

Can you stop in a roundabout?

Only to avoid a collision. Don't stop to let someone in or to look for your exit; if you miss it, go around again.