 In 1899 , Oslo Municipality established KKS to build and operate three tram lines . The second line to open was the Rodeløkka Line on 23 March 1900 , which connected to the KSS @-@ owned Grünerløkka – Torshov Line at Nybrua near <unk> gate . The line was built as double track until <unk> . It ran along Trondheimsveien before it branched off at <unk> gate towards Rodeløkka ; it followed <unk> gate , <unk> and <unk> before reaching <unk> . Here , a small depot was built with place for six cars . On 26 January 1901 , a new connection line through <unk> gate was built from <unk> to Kirkeristen , and the company no longer needed to lease tracks from Kristiania Elektriske Sporvei in the city center . KKS was bought by KSS in 1905 . 
