The West Coast Line runs between Gothenburg and Malmö/Lund and is an important connection for passenger and freight traffic in southwest Sweden. The line is important both for regional commuting and for longer journeys between the Öresund region and Gothenburg/Norway. The majority of the West Coast Line has already been upgraded to double track, which leaves the section through Varberg and the Ängelholm-Helsingborg section.
Today, utilisation of capacity on the existing single track between Ängelholm and Helsingborg is high, meaning that train traffic is unable to develop at a pace that satisfies demand. Upgrading to double tracks provides increased capacity and reduces the risk of delays.