On an urban road, where is a taxi driver permitted to stop in order to board and drop passengers?

1. Correct answer: In any place where parking is permitted, and at the side of red-white curbstones, provided that the taxi is not disturbing traffic.
2. Only in places designated and marked for that purpose.
3. Anywhere, including bus stops.
4. At every taxi station only, along an urban road.

WhyIn town a taxi may pick up and drop off passengers anywhere parking is allowed, and even by a red-and-white curb, as long as it does not disturb traffic. Not at a bus stop.