LearnerDrive
Where Driving Improves
Junctions & Road Features · Essential Technique
Guide to Roundabouts
Roundabouts come up on almost every driving test. Here is how to read them, position correctly, signal at the right moment, and navigate them without fault — from a simple two-exit to a multi-lane spiral.
Quick answer
Give way to traffic already on the roundabout, approach in the correct lane, signal left as you pass the exit before yours, and exit cleanly. The most common roundabout faults are missed observations, wrong lane on entry, and signalling too late or not at all on exit.
#4
Roundabouts in UK serious fault categories, annually
3
Exit directions — left, ahead, right — each with different rules
Rule H1
Highway Code — give way to traffic from the right
0
Serious faults allowed — one ends your test
01Approach and speed
Roundabouts reward early reading. The further back you spot one, the more time you have to choose the right lane, adjust your speed, and look for traffic already on it. Arriving at a roundabout unprepared is one of the fastest ways to record a serious fault.
Reading the roundabout early
Signs give you advance warning — a triangular give way sign with a roundabout symbol normally appears well before the junction. Use it. From the moment you see that sign, your checklist begins.
- Check your interior mirror — how close is the vehicle behind?
- Look for lane markings on the road ahead and signage indicating which lane serves which exit
- Begin to ease off the accelerator — approach speed should be reducing, not stable
- Assess the roundabout itself — is there traffic flowing freely, queuing, or stopped?
- Check for cyclists and pedestrians near the approach
The correct approach speed
There is no single correct speed for approaching a roundabout — it depends entirely on what you can see. If the roundabout is clear and you have good visibility, you may be able to keep moving slowly and emerge without stopping. If visibility is poor or traffic is present, you stop at the give way line.
What the examiner watches on approach
- Progressive, controlled braking from a reasonable distance
- Arriving at the give way line at a speed that does not require an emergency stop
- Neither too fast (dangerous) nor crawling from 100 metres away (undue hesitation)
When to stop — and when to go
The rule at a roundabout is give way to traffic from the right. You must give way to vehicles already on the roundabout. But if the roundabout is clear, you do not need to stop — and stopping unnecessarily when the way is clear can be recorded as undue hesitation, a minor fault that escalates quickly if repeated.
⚠ Common fault — creeping forward at the give way line
Edging past the give way line while waiting is a positioning fault. Stop behind it. When it is safe to go, go — do not inch forward a metre at a time.
Multi-lane roundabouts
On a roundabout with two or more lanes, road markings take precedence over general rules. Always follow what is painted on the road or shown on signs — these will tell you exactly which lane to use for each exit.
- Left lane — first exit (and sometimes the second — check markings)
- Right lane — later exits, particularly those past the 12 o'clock position
- Where two lanes serve the same exit, stay in your lane throughout — do not drift across
⚠ Common fault — lane drift on the roundabout
Entering in the left lane and drifting right across lane markings while on the roundabout. This cuts across other vehicles and is a serious fault if anyone is alongside you. Commit to your lane and hold it.
Going straight ahead — the positioning question most guides skip
Going straight on at a roundabout (the second exit) is the situation that causes most lane confusion. The default in the UK — where road markings do not specify otherwise — is to approach in the left lane.
However, at busier roundabouts where markings direct you to the right lane for a straight-ahead exit, follow them. The examiner knows the local roads and will expect you to respond to what the road surface tells you.
💡 When in doubt
The Highway Code gives general guidance. Road markings give specific instruction. Where the two differ, the road markings win.
03Observations
Observation is the single most-faulted element at roundabouts. Not because learners forget to look — but because they look at the wrong thing, in the wrong direction, at the wrong moment. Here is the sequence that covers you at each stage.
On approach
👁 Observation sequence — approach
- Interior mirror — how close is the vehicle behind?
- Appropriate door mirror — anything alongside?
- Road ahead to assess the roundabout
- Traffic from the right as you reach the give way line
As you slow for the roundabout, your attention should be on the traffic already on it — specifically anything approaching from your right. A common error is focusing only on what is directly ahead rather than looking right into the flow of the roundabout.
At the give way line
When you stop or slow at the line, look right to check the roundabout is clear. If it is clear immediately, emerge. If you stop and wait, keep looking right and checking for vehicles appearing from the approach roads to your right — not just vehicles already circling.
⚠ Common fault — emerging without effective observation
This is the junction observation fault — the single most common cause of serious faults on UK driving tests every year. Pulling forward onto the roundabout while a vehicle is approaching from the right forces them to brake or adjust. The examiner will mark it as serious.
While on the roundabout
Do not stop checking mirrors once you have joined. While circulating, you need to:
- Check the interior mirror regularly — who is behind you and how close?
- Check the right door mirror — especially when moving left to exit, as a vehicle may be alongside on the right
- Check the left door mirror — as you move left towards your exit, anything on your nearside?
- Look ahead for vehicles that may have stopped unexpectedly on the roundabout
Exiting the roundabout
The exit is where observations are most often missed. Before you move left to take your exit, check your right mirror — a vehicle in the right lane may be going straight on or turning right, and moving left into their path is a serious fault.
👁 Observation sequence — exiting
- Interior mirror
- Right door mirror
- Left signal on
- Left door mirror
- Move left toward exit — check mirrors again once on the new road
Signal left before you reach the give way line, maintain it throughout, and cancel once you have exited cleanly. Simple — but check your left door mirror before turning in.
Going straight ahead — 2nd exit
Signal sequence — straight ahead (2nd exit)
Approach → On roundabout → Passing 1st exit → Exit
No signal on approach
No signal on entry
Signal left after 1st exit
Cancel on exit
This is the signal most learners forget. No signal going in — but as you pass the exit before yours, apply a left signal to indicate you are about to leave the roundabout. This tells vehicles waiting to enter that you are exiting, not continuing around.
Turning right — 3rd exit or beyond
Signal sequence — turning right (3rd exit)
Approach → Entering → Circulating → Passing 2nd exit → Exit
Signal right on approach
Maintain right signal
Keep right signal
Change to left signal
Cancel on exit
Signal right on approach and maintain it until you have passed the exit before yours. Then switch to a left signal to indicate you are about to exit. This two-stage signal is the one most learners either miss or get the timing wrong on.
⚠ The three most common indicator faults at roundabouts
1. No left signal on exit when going straight ahead. Examiner records it as a signal fault. Other road users get no indication you are leaving.
2. Left signal on exit applied too late. Applied only after you are already turning — so no one benefits from the information.
3. Right signal not switched to left before exiting right. Still signalling right as you take your exit — a misleading signal fault.
💡 A practical cue for the exit signal
The moment you can see the exit before yours appearing on your left — that is the point to apply your left signal. Not as you reach it, but as it comes into view. This gives traffic waiting at that exit time to see your signal and respond.
05Mini roundabouts
Mini roundabouts follow the same give way rule — give way to traffic from the right — but the physical constraints change how you apply the technique. The painted circle is often barely wider than a car, and the whole junction can be crossed in a few seconds. That compresses everything: your observation window is smaller, your decision time is shorter, and there is almost no room to hold position.
What is different
- You can drive over the painted dome — it is designed to be overrun by larger vehicles, and you may need to if turning right
- There is rarely room to signal left on approach and hold a lane — the approach and exit happen almost simultaneously
- Signalling on entry is still expected where possible, but at very tight mini roundabouts the examiner understands the physical limits
- Observation is even more critical — the junction is so compact that vehicles arrive quickly and from close range
- Your speed must be very low — approach as if you might need to stop, even if the junction appears clear
What catches learners out
The most common mistake at mini roundabouts is treating them like a normal give way without looking right. Because the junction is small and fast, learners assume it is lower-risk — but a vehicle approaching from the right at even 10mph arrives very quickly. The observation requirement is identical to a full roundabout.
⚠ Common fault — treating a mini roundabout like an unmarked junction
Rolling across without looking right. The give way rule applies regardless of how small the roundabout is. Any vehicle on it has priority over you.
When two vehicles arrive at a mini roundabout at the same time, the rule remains give way to the right. If you are going straight on and a vehicle from the right is also going straight on, they have priority. Give way, then proceed.
💡 Multiple mini roundabouts in quick succession
Some junctions use several mini roundabouts together — Hemel Hempstead's Magic Roundabout is the extreme example. Treat each one independently. Give way at each give way line. Do not roll through them as if they are a single junction.
06Spiral and marked roundabouts
Spiral roundabouts — also called marked or lane-controlled roundabouts — have painted lane lines that continue across the surface of the roundabout itself, not just on the approach roads. These markings exist because the roundabout is large enough and busy enough that mixing lanes mid-circuit would cause constant conflict.
The principle is the same as any lane discipline: choose your lane on approach and stay in it. What changes is that on a spiral roundabout, your lane assignment is locked in before you enter. The markings tell you which exit you can take from each lane. You cannot change lanes once inside.
How to read a spiral roundabout on approach
-
1
Read the advance signs
Direction signs before the roundabout will show which lane serves which exit. These appear well before the junction — read them early so you have time to position.
-
2
Check the road markings on the approach
Lane arrows painted on the road will show which direction each lane takes. Some lanes serve a single exit; some serve two. These override any general rule of thumb.
-
3
Position early — before the give way line
Move into the correct lane while still on the approach road. Changing lanes at the give way line or — worse — on the roundabout itself is a serious fault.
-
4
Enter and hold your lane
Follow the painted lane lines across the roundabout. They will curve — stay within them. Do not drift across a line even if the adjacent lane appears empty.
-
5
Exit at your designated exit
The lane markings will guide you to the correct exit. Signal left as you approach the exit (after passing the one before it), check your left mirror, and exit cleanly.
⚠ Common fault — changing lanes on a spiral roundabout
Entering in the left lane and trying to move right on the roundabout — typically because a driver realises too late they are in the wrong lane. This cuts across a vehicle in the right lane. Serious fault. If you are in the wrong lane, take the exit that lane serves, drive around the block, and approach again. Do not attempt a mid-roundabout lane change.
The observation challenge on a spiral roundabout
Because lanes are fixed, the lateral conflict that occurs on unlined roundabouts is reduced. But there is a different risk: in the outer (left) lane, your view of the exits is often partially obscured by vehicles in the inner (right) lane. Check ahead and maintain a safe following distance.
When exiting from the right lane on a spiral roundabout — typically for a later right-hand exit — you will need to cross the outer lane as you exit. This is built into the design, but it means your left mirror check and left signal before the exit are essential. Look for vehicles in the outer lane before committing.
💡 If you are unsure which lane to use
Default to the left lane for the first and second exits, and the right lane for later exits — but always treat the road markings as final. If in doubt on a test, hold your chosen lane and take the exit it directs you to. An unexpected exit is easier to recover from than a lane change fault.