Until where does the following road sign remain valid?

1. Until the next intersection.
2. Until a traffic sign that prohibits entry of vehicles with an all up weight of less than 10,000 kg.
3. Until the next traffic light.
4. Correct answer: Until a road sign that cancels it.

WhyThe ban on parking heavy trucks applies until a sign that cancels it. An intersection or a traffic light does not end it.