Earlier quoted context omitted.
In most areas taxi-companies use a zone-based system where cars will flag what zone they're in (rarely automatically using GPS and more often via button presses) this is an effort by the cab company to keep their vacant vehicles well distributed to keep a high response rate and increase customer turnover. It also happens to have the side benefit that an operator watching the flagged zones would be able to see this ki…
Maybe that was the case 10 years ago. Or 15. Nowadays it's all automatic, there are no predefined zones - only past statistics and about zero operators. edit: srsly, that's what Uber is all about. and YTaxi is one of Moscow Ubers.
Also, you're saying my comment is out of date but this out of date system effectively solves the issue that just occurred with YandexTaxi - so maybe if you're working on a more up-to-date system you should borrow from the out of date tactics.