The Gardermoen Line was the second attempt to build a high-speed railway in Norway. The first was the line from Ski to Moss on the Østfold Line. However, operational speeds in excess of could not be achieved due to the short distances and limitations on rolling stock. The Gardermoen Line, therefore, became the first real high-speed railway line in Norway. Due to the domination of single track in Norway, the Gardermoen Line increased the total length of double track in the kingdom by more than 50%.