Banedanmark says most of the major earthworks and structures are now complete on the 60km line and ballasting is underway.

Over the coming months Strukton Rail will lay nearly 2km of track per day and tracklaying is due to be completed by May 2017. This will be followed by the installation of 25kV ac electrification, which is due to be completed by February 2018, with the line scheduled to open on December 9 2018.

The line will have a maximum operating speed of 250km/h and will relieve the existing mainline through Roskilde, reducing journey times between Copenhagen and Ringsted from 59 minutes to 38 minutes.

The new railway will be equipped with ETCS Level 2 as part of Banedanmark’s national ERTMS programme.