The Austrian capital has the fifth-largest tramway network of the world with a length of approx. 180 km beside a U-Bahn (underground) network with five lines and approx. 75 km length. Four U-Bahn lines are operated with classic underground train cars and lateral live rail, one (line U6) with low floor cars and overhead wires.
Operator of the tramway, underground and the municipal busses is → "Wiener Linien"
(= Viennese lines). Additionaly, there's a interurban tram line to the city of Baden some 30 kilometres south of Vienna, which is operated by a full subsidary company (Wiener Lokalbahnen AG, abbrev. WLB)