Dutch capital Amsterdam is midway through the Noord-Zuidlijn construction project, a new north-south metro line. To be designated Line 52, it will form an important transport artery through the central districts to connect suburbs north of the River Ij, currently served by frequent ferries, with the Amsterdam Zuid (south) transport interchange.
The route is 9.8km long, of which a total of 6km will be underground. The eight-year north-south construction project only began in 2002 and is costing €1.7bn (excluding rolling stock).