The city of Liberec is located in the north of the Czech Republic in the border triangle near the German and Polish border and has a population of 100,000. It has a metre-gauge interurban tram line to Jablonec nad Nisou (12 kilometers away) as well as an inner city tramway, which was rebuilt on the standard gauge tracks (1,435 mm) in the 1990s.

Operator of the tram and bus lines in both cities is → DPMLJ ("Dopravní podnik měst Liberce a Jablonce nad Nisou").