OHLA has carried out a new route from the south exit of the Follo Line tunnels to the south of the city of Ski. In total, 3.5 km of track, with 13.6 km of ballasted track and 40 turnouts. In addition, the project includes the construction of the Ski station, with six tracks, three central platforms with their corresponding roofs, and an underpass.

OHLA has also been responsible for the construction of a road bridge over the new tracks, a new bus terminal, bicycle parking facilities, and the extension of the existing parking lot, as well as new roads with sidewalks and technical buildings.

Nearly 100,000 passengers will benefit from this infrastructure, which includes actions with a high sustainability value and has a positive impact on connections with Oslo, user accessibility, and environmental protection.

The new infrastructure is designed to reach speeds of up to 250 km/h, reducing travel time by 50%, from 22 to 11 minutes. It will also facilitate the transport of goods, supporting the economic and commercial development of the region, and enhancing the connection with the continent through a potential high-speed rail network.