Is a taxi driver permitted to load passengers within the limits of signs that prohibit stopping or parking?

1. Correct answer: Yes, but only on an urban road.
2. He is permitted to stop only if instructed to do so by a policeman.
3. A taxi driver is permitted to stop on any type of road.
4. Only share-taxi drivers.

WhyA taxi may pick up passengers under a no-stopping sign only on an urban road. Outside towns the sign applies to it too.