Slow Moving Traffic!
Traffic jams and slow moving traffic at light controlled junctions often results in frustration for many drivers, particularly when junctions are blocked when your light is green.
Technically it’s not illegal to block a junction unless prohibitions are in force such as the yellow box.
Other advisory notices such as ‘Keep Clear‘ road markings may also be in place.
However, blocking a junction impedes traffic flow, so only enter it when you are certain you can clear it – even if your light is green.