 In 1990 and 1994, NSB published two reports regarding the future of intercity rail transport in Norway. The reports concluded that there would have to be invested 56 billion Norwegian krone (NOK) in new infrastructure if the main corridors were to be built as high-speed railways. Instead, the use of tilting technology was proposed to allow higher speeds on existing lines. In 1992, the Parliament of Norway voted to build Oslo Airport, Gardermoen and connect it to the capital with the high-speed Gardermoen Line. It was decided that the service should take 19 minutes — and not one minute more. When issuing invitations to tenders, NSB specified this time limit as a criterion, which was also the reason the line was dimensioned for 210 kilometers per hour (130 mph).
