Ninety-five per cent of the existing system, Beovoz, is a classic railway connecting the downtown with suburbs, but it also has a modern underground station that would become the central subway station under the project.
Devedeset i pet odsto postojećeg sistema Beovoz predstavlja klasičnu železničku prugu koja povezuje centar grada sa predgrađima, ali obuhvata i modernu podzemnu stanicu koja bi, u skladu sa projektom, postala centralna stanica metroa.