Trondheim Bilruter buses operated by TBR were painted dark red og grey. Trondheim Bilruter Trondheim Bilruter or TBR was a municipally owned bus company in Trondheim, Norway between 1951 and 1974. It was merged with the tram operators Trondheim Sporvei and A/S Graakalbanen in 1974 to form Trondheim Trafikkselskap. It is now part of Team Trafikk, a subsidiary of Nettbuss. The predecessor of the company was Autobuss, a privately owned bus company that started bus operations in Trondheim in 1929. Trondheim Bilruter did not have a monopoly on bus operation in the city. The tram operator Trondheim Sprovei operated some bus lines,
Trondheim Tramway who wanted the tram to survive. AS Gråkallbanen only operated the one line. In 2005 the company was bought by Veolia Transport Norge. Advocates of the trams have suggested expanding the tramway from its present terminus at St. Olav's Gate through the city core to Trondheim Central Station or Nedre Elvehavn onwards to Brattøra and Trondheim Port. This has been supported by the city council, but no definite decision has been made. Estimates of costs lay between NOK 50 and 80 million, with completion in 2009 at the same time as Nordre Avlastningsvei. A plan to extend the network by