1950/1960 Niš Nis-ekspres was founded on March 3 1951. The company was called Passenger Transport Company and it operated both tram and bus lines until 1958, when the trams were replaced by buses. In the sixties, Nis became a university center. As the city grew, so did the need for a well organized public transport system. Our red buses soon became an important aspect of everyday life in Nis.