It is relatively cheap and fast to ride a marshrutka. The only drawback foreigners have noticed is the poor noise insulation, which makes it so that you have to practically scream at the driver to request a stop. In Ukraine, the Bogdan A091 and A092 buses are the most common route taxi which can be found operating in towns and cities. Generally the fare is higher than city owned public buses. Alighting the bus is possible regardless of the designated bus stop, but generally this is up to driver's discretion. State Automobile inspection (ДАІ) forbids picking up passengers outside of the designated bus stops. Marshrutkas do not require tickets, although a passenger can ask for a ticket when paying the fare as a receipt for expense claim purposes. Etalons and Bogdans usually have a conductor on board selling the tickets. In the GAZelle or converted van, the fare is paid directly to the driver, either upon pickup or departure of the passenger. It is common etiquette for passengers to relay the fare of fellow passengers to the driver, and the change back on crowded buses. In Kyiv, Ukraine and probably other places marshrutkas evolve into "everybody pays" fast buses. The vehicles can be small, medium-size, and sometimes big buses, with a higher fare than on ordinary municipally funded buses. The main thing about marshrutkas is they do not carry pensioners and the disabled; depending on the city, students, law enforcement workers, and civil servants (pass holders) ride for free. Marshrutkas will not take more free passengers (e.g. disabled) than the strictly limited quantity of one per vehicle, while in ordinary buses, trolleybuses and trams the number is not limited and more categories of people (pensioners, etc.) have the right to ride for free. This is the reason why there are many times more marshrutkas in the city than ordinary buses, trolleybuses and trams altogether. Since municipally funded buses must transport pass holders for free, naturally pass holders tend to use a municipal bus versus a private bus. The word "taxi" is needed just to answer the question why they have no free-ride obligations as part of their franchise, as ordinary municipal buses, which are usually "full of free riders", are unprofitable and bring economical loss. A marshrut may even charge the same fare as a municipal bus in the city, but marshrut will still be profitable since there is an effective doubling of the price due to there being one or no free pass riders on board.