UK Driving Test Junctions Observation Fault: the Number One Fail Reason

#What is the junction observation fault?

DVSA records a junction observation fault when a candidate fails to look adequately, or in the right places, before emerging from a junction or crossing the path of other road users at one. The examiner records it as a driving fault (minor) if the lapse did not endanger any road user, and as a serious or dangerous fault if it did, or if you pulled out and forced another vehicle to brake or swerve. One serious or dangerous fault ends the test immediately regardless of how well everything else went.

The fault covers a wide range of specific situations: not looking right before turning left at a T-junction, not checking for cyclists in the blind spot before turning right, not giving way to pedestrians already crossing, or treating a Give Way line as a Stop line without properly scanning the road. Examiners assess not just whether you looked but whether your look was effective: a brief glance that clearly missed an oncoming vehicle is still a fault.

#The DVSA top 10 most common driving test faults (2024-25)

#Why do learners fail on junction observation?

Three root causes account for the majority of junction observation faults recorded in DVSA data. First, approaching a junction too fast: when you reach the Give Way line at speed, your observation window is too short to properly assess the road. You look, but the look is rushed. Second, looking too early: checking the road while still 20 metres from the junction rather than at the junction itself means the picture you have seen is already out of date by the time you reach the line. A vehicle that was 200 metres away when you checked may be 80 metres away by the time you pull out. Third, selective looking: checking for cars but not for cyclists, or checking the main road but not the footpath pedestrians might be crossing from.

Under test conditions, anxiety plays a significant role. Learners who handle junctions comfortably in lessons often rush them on the day because they feel time pressure from the examiner's presence. Slowing down to a proper observation speed feels awkward when someone is sitting next to you judging every decision, but it is the correct behaviour and the examiner will not mark you down for taking the time to look properly.

#The MSM-PSL routine at junctions

The Highway Code and DVSA teaching framework use the Mirror-Signal-Manoeuvre (MSM) routine, with the manoeuvre phase broken into Position-Speed-Look (PSL). At a junction, applying it consistently eliminates almost all observation faults. The sequence goes: Mirror (check what is behind and beside you), Signal (indicate if appropriate), Manoeuvre by adjusting Position (move to the correct lane), reducing Speed (slow progressively so you arrive at the line at walking pace or slower), and then Look (observe properly before emerging or crossing).

#Specific junction types and what to look for

The observation requirements vary slightly depending on the junction type. At a T-junction where you are turning left onto a major road, the priority hazards are oncoming traffic from the right and cyclists coming from the left who might be inside your turning path. At a crossroads, you must also check for vehicles coming straight across. At a roundabout exit, the main observation risk is pedestrians crossing the exit road, which is the section examiners report most often goes unchecked. At a mini-roundabout, you must give way to traffic already on the roundabout; observation errors here often stem from treating a mini-roundabout as a give-way line rather than a proper yield to all circulating traffic.

#How to practise fixing junction observation before your test

Tell your instructor you want to work specifically on junction observation in your final sessions. A good ADI will put you on a route with a high density of Give Way junctions and ask you to narrate your observations aloud as you approach each one. Saying "looking right, clear to 50 metres, looking left, cyclist at 30 metres, waiting" makes the observation process explicit and gives your instructor real-time feedback on whether your look is effective or token.

Practising in private sessions with a supervisor in a familiar car also helps, because you can choose routes with many junctions and repeat the approaches until the MSM-PSL sequence is automatic. The value of private practice for junction observation specifically is that you can slow down to an almost absurd crawl at each junction without feeling rushed, building the habit of arriving slowly and looking fully before emerging. That habit transfers directly to the test.

In the days before your test, walk a few local junctions as a pedestrian. Look at what drivers actually do when they emerge. You will see how many pull out with only a brief flick of the head rather than a sustained, rotated look. You will also notice how quickly gaps close on busier roads. It recalibrates your sense of what an effective observation looks like versus what feels like one when you are behind the wheel.

#Sources and further reading

The figures, fees, and procedures referenced in this article are verifiable on the official gov.uk pages below. PassRates.uk is built on the Driver and Vehicle Standards Agency’s open data, published under the Open Government Licence.

• Driving test (gov.uk)
• If you fail your driving test (gov.uk)
• Change or cancel your driving test (gov.uk)
• The Highway Code (gov.uk)
• Find an approved driving instructor (gov.uk)
• Open Government Licence v3.0 (nationalarchives.gov.uk)