is in early planning phase. A preparatory study was also completed for the Szeged - Makó line, but the estimated costs were high, and it is also dependent on a new road-rail bridge over the river Tisa only in planning phase as of now. TramCamp, Camp de Tarragona, Catalonia, Spain Wrocław, Poland (2005) — 600 V DC/3 kV DC Riga, Latvia Tampere, Finland Turku, Finland West Midlands conurbation, United Kingdom. Proposed extensions to the West Midlands Metro. Oceania Adelaide, South Australia – On June 5, 2008, the Government of South Australia announced plans for train-tram operation on the Adelaide Metro's Outer Harbor/Grange train lines and City West-Glenelg tramline extension as part of a 10-year A$2 billion public transport upgrade. South America Bogotá Commuter Rail (RegioTram), Colombia Cali, Colombia Vehicles Models of tram designed for tram-train operation include: Alstom's RegioCitadis and Citadis Dualis, derived from the Citadis Bombardier Flexity Link and Bombardier Flexity Swift Siemens S70 Stadler Citylink Train-tram Europe Zwickau: Trams in Zwickau – on-board diesel generator (light-weight RegioSprinter diesel railbuses that also operate on street tramway) North America Austin, Texas: Capital MetroRail – commuter rail that shares more commonality with train-tram operation, with downtown street running and usage of mainline track. Uses diesel multiple units. New Jersey: River Line – diesel multiple units using main line tracks between Trenton, New Jersey and Camden, New Jersey in a time-sharing agreement with the freight companies. See also Grooved rail Light rail Stadtbahn References External links TramTrain - the 2nd generation: Searching for the 'ideal' TramTrain-city New TramTrain for Mulhouse - Reportage and images (English/German) Construction of the TramTrain system in Mulhouse with images (English/German) tram-train of Karlsruhe transformed in a subway in the center Leeds City Region proposal (Jane's) Urban Transit Systems Electric public transport Passenger rail transport