The tram will run between the terminals of Moscow's Sheremetyevo airport, which has several terminals.
According to the news in Kommersant newspaper, the public transportation between terminals is now being carried out by minibuses, which will be transformed into a tramway in a more organized way to make the people more comfortable and quicker. The project will be carried out by Aeroekspress, which currently operates express train services to Moscow airports.
On the other hand, it is planned to combine the Moscow airports with the fast tram in the future. This way, a person who wants to move from one airport to another airport will have a more comfortable transportation.
Source : http://www.gazetem.ru