UNStudio has completed the new €37.5m Transfer Terminal at Arnhem Central Station in the Netherlands for ProRail.
Backed by the Dutch government, the new 21,750m² terminal houses commercial areas and a conference centre.
It will connect to the nearby office plaza, city centre, and underground parking garage as well as the Park Sonsbeek.
The area around the station has 160,000m² of offices and shops in addition to a cinema complex.
According to UNStudio, the Transfer Terminal features a twisting structural roof geometry, which enables column-free spans of up to 60m in the transfer hall.
The company took references from the inside / outside surface of a Klein Bottle and blurred distinctions between the inside and outside of the terminal by continuing the urban landscape into the transfer hall's interior.
UNStudio used boat building techniques to compose the structure of the roof.
The company, which started the master plan in 1996, completed its first sketch design for the terminal in 2000.
UNStudio founder and principal architect Ben van Berkel said: "We wanted to give a new and vital impetus to station design, so rather than merely designing the station around the activities and people flows that already took place there, the expanded architecture of the new Transfer Terminal directs and determines how people use and move around the building."
ProRail project manager station development Karin van Helmond said: "By focusing on our ultimate goal, the actual building of this magnificent station, we succeeded in overcoming all setbacks and risks and by working closely together we got this unprecedented job done."
Image: The Transfer Terminal at Arnhem Central Station features a twisting structural roof geometry. Photo: courtesy of ProRail B.V.