What does it mean if yellow traffic signals are flashing?
A. The traffic signals are faulty. Apply the give way rules
B. You can proceed through the intersection if pedestrians have finished crossing
C. A wide load is coming through the junction - prepare to stop
D. A crash has just happened
When the lights are faulty use the give way rules to determine who goes first. Use caution, though, and assume that other drivers might not know the rules.
The basic give way rules are:
At very busy intersections police officers may take over providing traffic signals. You can see the signals here.