About The hierarchy: which sign wins when they conflict: which statement is correct?
If a junction has no sign and no working traffic light, no right-of-way rule applies — drivers must simply agree among themselves who goes first.
A priority sign (for example shark's teeth or sign B6) outranks a traffic light when the two contradict each other.
On a green light you may always proceed, even if a traffic controller is signalling you to stop.
A traffic light only outranks traffic signs that regulate right of way (B-signs, shark's teeth).
Explanation
trap: sign without distinction. A traffic light only outranks traffic signs that regulate right of way (B-signs, shark's teeth). A closure sign (C) or a speed-limit sign keeps applying alongside the light