Swindon Corporation started operating electric trams in Swindon in 1904, followed by motor buses in 1927 which replaced the trams by 1929. Following the 1974 r4-structuring of local government, the Corporation was incorporated within the new Thamesdown District, and the name was changed accordingly. When bus services were de-regulated in 1986, Thamesdown Transport became a limited company at arms length from the Council. The current fleet comprises over 110 vehicles, with newer lower-floor single deck vehicles replacing older double deck vehicles in recent years.