Junctions and Roundabouts
Yellow Box Junctions
These junctions consist of patterns of criss-cross yellow lines.
You must not enter the yellow box junction unless you can clear it without stopping.
An exception is when you want to turn right. In this case, you may enter the yellow box junction while waiting for a gap in traffic coming from the opposite direction. However, don't enter the box if to do so would block other traffic that has the right of way.
Yellow box junctions can also be found at railway level crossings or tramway crossings. Never enter these yellow box junctions unless you can leave them without stopping.
Section 6. has more information on traffic signs and road markings.