Roundabouts
Lane choice, signalling, observation and safe decision-making at roundabouts.
Why This Matters
Roundabouts combine lane discipline, signalling, yielding and hazard awareness, so they expose poor planning quickly during the practical test.
Coach Note
The tester is rarely only judging whether you exited correctly. They are watching your lane setup, traffic reading, mirror use and whether you stay calm under pressure.
Learning Goals
- Use the 12 o'clock rule as a default lane guide.
- Know when lane arrows and road signs override the default rule.
- Signal correctly for left, straight and right exits.
- Yield to traffic from the right or already on the roundabout without freezing unnecessarily.
- Recover safely if you realise you are in the wrong lane.
Sections
The 12 O'Clock Rule
Treat the roundabout like a clock to choose your approach lane.
Core Rule
As a general default, exits from 6 o'clock to 12 o'clock are approached from the left lane. Exits from 12 o'clock to 6 o'clock are generally approached from the right lane.
What Overrides It
If lane arrows, lane markings or road signs tell you to use a different lane, follow them instead of the default clock rule.
Why It Helps
The 12 o'clock rule gives you an early planning shortcut. Good planning prevents late lane changes and rushed steering.
Memory Aids
- •Before the yield line, decide if your exit is before or after 12 o'clock.
- •If painted arrows disagree with your memory, trust the road markings.
Common Mistakes
- Using the right lane for an early left or straight exit without a marking that allows it.
- Treating every second exit as automatic left lane without reading the roundabout shape.
- Changing lane late because the approach was not planned early enough.
Approach and Yield
How to set up early, read traffic and enter safely.
Read the Approach Early
Look for direction signs, lane arrows and road markings before you reach the roundabout. Move into the correct lane in good time.
Treat It Like a Junction
Yield to traffic coming from the right or already on the roundabout, but keep moving if the way is clear.
Choose a Safe Gap, Not a Perfect Gap
A long unnecessary stop can be marked just as poor entry judgement can. If the way is safely clear, commit and go.
Micro Drills
Name the three things you should be reading before the yield line.
- Signs
- Lane arrows or markings
- Traffic already on the roundabout
Common Mistakes
- Stopping automatically even though the roundabout is clear.
- Watching only the lane lines and not the oncoming traffic.
- Trying to decide the exit too late.
Signals and Exit Patterns
Understand signalling for left, straight and right exits.
Exit Patterns
| Approach Lane | Approach Signal | On Roundabout | Key Note |
|---|---|---|---|
| left | left | continue left | Stay in the left lane and continue to the first exit. |
| usually left unless markings say otherwise | none on approach | signal left after passing the exit before yours | Plan your exit early so the left signal is not rushed. |
| usually right | right | change to left signal before your exit | Do not keep the right signal on while leaving the roundabout. |
Common Mistakes
- Leaving the right signal on through the exit.
- Forgetting to signal left when exiting straight ahead.
- Cutting across a lane on exit because the lane plan was poor.
Test-Day Roundabout Advice
How to recover from pressure and still look controlled.
Coach Tips
- •If you realise late that you are in the wrong lane, avoid a sudden correction. Continue safely and recover later.
- •A calm, slightly conservative entry is better than rushing into the wrong gap.
- •The tester notices whether you were observing continuously, not just whether you chose the correct exit.
Self-Check
- Did I read the signs before the yield line?
- Did I choose the lane before the pressure point?
- Did I signal correctly before leaving?
- Did I keep scanning traffic, not just the lane lines?
Practise real Irish test routes
My Driving Test helps you learn the theory. DrivingRoutes helps you practise 303 real route patterns with turn-by-turn guidance.