About Instructions from competent persons: who, and what rank: which statement is correct?
Drivers must stop for the stop instruction of traffic wardens who help children cross — the competence is tied to that specific role, not general.
An escort of a rail vehicle (for example a tram) waving a red flag is not police, so you don't have to obey that stop signal.
If a random bystander waves their arms in the middle of the street to direct traffic, you must obey their instructions just as much as those of the police.
If the traffic light shows green but a police officer simultaneously makes a stop gesture, you may continue driving — the light is the most recent, automated rule.
Explanation
trap: role-specific competence over-generalised. Drivers must stop for the stop instruction of traffic wardens **who help children cross** — the competence is tied to that specific role, not general