Transport for LondonYellow Box Junctions and Banned Turns
Yellow box junctions
- These have criss-cross yellow lines painted on the Road
- They need to be kept clear for through-traffic to avoid traffic jams
- Don't enter a yellow box junction until your exit road or lane is clear
- You can stop in a yellow box junction if you want to turn right and are stopped from doing so by oncoming traffic, or by other vehicles waiting to turn right
Roundabouts
At certain roundabouts where there is a box junction, you must not enter the yellow box junction unless you can cross over it completely without stopping.
Banned turns
Signs with a thick red outer line tell you what you cannot do.
Signs with a blue circle but no red border tell you what you must do.
For other road signs please visit the Highway Code website.
We may issue a £130 penalty charge notice
If you:- enter a yellow box junction when your exit route is not clear
- make a banned turn
