Rule 24
When the road is congested, traffic on your side of the road may be forced to stop even though their lights are green. Traffic may still be moving on the other side of the road, so press the button and wait for the signal to cross.
SteerTogether · Official English reference
Read rule 24
Pedestrians: rules 1–35
Review walking and crossing guidance, including pavements, crossing facilities and situations needing extra care.
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