The T-junction is the most common junction on the UK road network, and it is where the DVSA’s most frequently recorded serious fault lives: junction observation — failed to look properly. It appears at the top of the national fault list year after year, and the majority of those marks are picked up at ordinary T-junctions on ordinary roads.
The good news is that T-junctions are entirely learnable. Unlike a complex gyratory, there is no exotic geometry to decode. What separates a confident emerge from a marked one is a routine — and most learners are never taught the routine explicitly. Here it is.
Open and Closed T-Junctions: Why the Difference Matters
Examiners are looking for evidence that you have read the junction, not just arrived at it. The first thing to read is whether it is open or closed.
Closed junctions
A closed T-junction has your view blocked — by a hedge, a wall, parked cars or a building on the corner. You cannot see the main road until you are almost at the give way line. These require you to stop or nearly stop, creep forward to a position where you can see, and only then make a decision.
The classic fault at a closed junction is arriving too fast, realising you cannot see, and then either stopping harshly or edging out further than is safe. The fix is to slow much earlier than feels necessary.
Open junctions
An open T-junction gives you a clear view of the main road on the approach. Here the examiner expects you to use that view. If the road is genuinely clear and you come to a full stop anyway, you may be marked for undue hesitation or lack of progress.
This catches out cautious learners badly. They have been told “always stop at a junction” and apply it everywhere. What examiners actually want is: look early, and if it is safe and clear, keep moving.
The one-sentence version
At a closed junction, slow right down and creep until you can see. At an open junction, look early and keep moving if it is clear. Reading which type you are approaching is half the skill.
The Approach Routine
Every T-junction approach follows the same sequence. Drill it until it runs without conscious thought.
- Mirrors. Interior first, then the mirror on the side you are turning towards.
- Signal. In good time, but not so early that it confuses drivers at an earlier turning.
- Position. Left turn: normal driving position, slightly left. Right turn: move towards the centre line, without crossing it.
- Speed. Brake progressively, then select the right gear. Second is common; first if the junction is closed or traffic is heavy.
- Look. Right, left, right again — and then keep looking as you emerge. The last look is the one people miss.
Notice that “look” is the last step, not the first. Learners who look too early, decide the road is clear, and then emerge three seconds later without looking again are the ones who get marked. The traffic situation changes in those three seconds.
Judging the Gap
This is the part that cannot be reduced to a rule, and the part examiners weigh most heavily. You need a gap that lets you emerge and reach the speed of the traffic without anyone having to slow down for you.
Two failure modes:
- Taking a gap that is too small. The car you emerged in front of brakes. That is at minimum a serious fault, and if the examiner has to intervene, it is a dangerous one.
- Refusing gaps that are perfectly safe. Sitting at a junction while three usable gaps pass is undue hesitation, and it is marked.
A practical way to calibrate: watch how your instructor or a confident driver treats gaps at the same junction. Most learners’ instinct is set far too conservative, and it improves quickly with deliberate practice.
Practise Real Test Routes on Your Phone
The Exam Routes App gives you access to real driving test routes with turn-by-turn navigation. Practise at your own pace and build confidence before test day.
Emerging Left vs Emerging Right
Turning left
You only need a gap in traffic coming from your right — but you must still look left, because of cyclists, pedestrians crossing the junction mouth, and vehicles positioned to turn into your road. Keep left on the approach, do not swing wide, and do not cut the corner on the way out.
Turning right
You need a gap in both directions simultaneously, which is why right turns appear so often in the DVSA’s fault statistics. Position towards the centre, keep your wheels straight while waiting so that a shunt from behind does not push you into oncoming traffic, and be prepared to wait longer than feels comfortable.
Common T-Junction Faults and How to Kill Them
- Looking without seeing. Moving your head is not observation. Actually process what is coming.
- The single look. One glance right and then emerging. Always look again immediately before you move.
- Creeping out with wheels turned. Dangerous when waiting to turn right. Wheels straight until you move.
- Coasting to the line. Clutch down for the last stretch means you have no control over the car’s speed.
- Stalling under pressure. A stall is usually a driving fault, not an automatic fail — restart calmly, handbrake on, and go again when it is safe.
- Ignoring the road you are joining. Emerging into a queue and stopping across the junction mouth blocks other traffic.
- Forgetting the road surface. In rain or frost, your stopping distance at the give way line is longer than you think.
What About Unmarked T-Junctions?
Some residential T-junctions have no give way lines and no signs. You still do not have automatic priority — treat them exactly as you would a marked junction, approach slowly, and be prepared to give way. Making eye contact with the other driver is often the fastest way to resolve who goes first.
How to Practise T-Junctions Properly
The mistake is practising junctions in isolation, in a quiet estate, where every gap is enormous. That builds the routine but not the judgement.
Instead, practise on the road types you will actually be tested on: junctions emerging onto busy A-roads, junctions with restricted visibility, and junctions during the time of day your test is booked. Repetition on real junctions is what converts a routine into an instinct.
The Exam Routes App helps here by mapping real driving test routes around UK test centres with turn-by-turn navigation, so you can practise the specific junctions examiners at your centre are likely to use rather than generic ones near home.
Frequently Asked Questions
What is the most common fault at T-junctions?
Junction observation — recorded as “failed to look properly” — is consistently the most common serious fault in DVSA data, and much of it happens at ordinary T-junctions.
Do I have to stop at every T-junction?
No. At an open junction with a clear view and no traffic, stopping unnecessarily can be marked as undue hesitation. Stop where the junction is closed, where a stop sign requires it, or where traffic demands it.
Which way do I look first at a T-junction?
The usual routine is right, left, then right again, continuing to look as you emerge. Adapt for one-way roads and always check for cyclists and pedestrians in both directions.
Why should I keep my wheels straight when waiting to turn right?
If a vehicle hits you from behind while your wheels are turned, you would be pushed into oncoming traffic. Keeping them straight until you move is a basic safety habit examiners look for.
Does stalling at a junction fail the test?
Not usually. A single stall handled calmly is normally recorded as a driving fault. It becomes serious if it happens in a dangerous position or if your recovery is unsafe.
What do I do at an unmarked T-junction?
Treat it with the same caution as a marked one. You do not have automatic priority. Approach slowly, be ready to give way, and use eye contact to resolve who goes first.
Turn Difficult Junctions Into Familiar Ones
Stop guessing where the examiner will take you. Practise the roads that actually appear on test with the Exam Routes App — real routes, turn-by-turn navigation, and no more surprises on test day.
