Wikipedia
Lysakerelven is a former station in western Oslo on the Kolsås Line of the Oslo T-bane network, between the stations of Bjørnsletta and Jar, from Stortinget. It was the last station within Oslo's boundaries before the line continues into Bærum; taking its name from the river Lysakerelven which is the boundary between Oslo and Bærum.
The station was opened on 15 June 1942. Along with most of the line, Lysakerelven closed for upgrades since 1 July 2006.
The future status of the Kolsås Line was debated, and one suggestion which was made was to end the line's subway service in Bærum entirely and replace it with trams, making Lysakerelven the end station. This option proved unpopular with passengers. Instead Lysakerelven and Bjørnsletta were merged into a new station located between them that took take the name of Bjørnsletta.
Lysakerelven (also known as Lysakerelva, ) is a river in Norway that forms the boundary between the municipalities of the capital city of Oslo and Bærum.
The river by this name has its source in Bogstadvannet, though the source is further up, at Langlivann, and Søndre and Nordre Heggelivann in Oslomarka, the forests surrounding Oslo. Consequently, it is considered part of Oslomarkvassdragene, the river system flowing through these forests, and more specifically Sørkedalsvassdraget, the valley above Bogstadvannet. It flows out into Lysakerfjorden, part of Oslofjorden near Lysaker.