What is the meaning of the following traffic sign?

1. Taxi stand in airports.
2. Designated waiting place for a taxi service route.
3. Designated waiting place for taxis.
4. Correct answer: Place for loading and unloading of taxi passengers only. Waiting for passengers is prohibited.

WhyA yellow taxi sign with a no-parking mark is a place for taxi passengers to get in and out without waiting. Even a taxi may not wait there.