sentences:  A change of plans moved the line's route to Valkyriegaten under Valkyrie plass, which allowed the cavity from 1912 to become a station, despite it only being from Majorstuen.Past Slottsparken, the original track had been built at an increased depth to allow for a future extension of the Drammen Line of the Norwegian State Railways (NSB) to run above the light rail tunnel.By 1926, these plans had been discarded, and the second track was not built as deep.