Essential Driving Skills

Box Junctions


Box Junctions have criss-cross yellow lines painted on the road. You must not enter the box until your exit road or lane is clear. However, you may enter the box and wait when you want to turn right, and are only stopped from doing so by oncoming traffic, or by other vehicles waiting to turn right.

Box junctions are normally used on large busy junctions such as traffic light controlled crossroads, T-Junctions and even roundabouts.

Box junctions make it possible to keep the flow of traffic moving and therefore keep the junction clear, by preventing traffic from stopping in the path of crossing traffic. Use the Mirror, Signal, Manoeuvre routine (MSM) early and this will give you time to assess the junction before you get there.

If we consider a box junction at traffic lights. You should enter the box junction if you wish to turn right and your path is blocked by oncoming traffic. It is OK for you to wait on the yellow criss-cross providing your exit road is clear. If you wait outside the box in these circumstances, you could fail your driving test. When the way is clear move away smartly and do not cause an obstruction.

Be careful when queuing inside the box junction as you may not have time to clear the junction before the traffic lights change.

In the event that the exit road is not clear you must not enter the box, equally you should not enter the box if there is already a line of traffic in the box waiting to turn right and there is no room for you to join the queue. In these circumstances if you do attempt to enter the box you could fail your driving test

The Driving Test

The examiner on the driving test will expect you to:-

1. Use the MSM routine in good time
2. Not enter a box junction unless your exit road is clear
3. Slow down and stop before the box junction if your exit road is not clear
4. Control your speed on approach to box juctions.
5. Move off, after looking carefully to ensure it is safe.