HH Tunnel

The HH Tunnel is a proposed series of tunnels under Øresund between Helsingborg in Sweden and Helsingør in Denmark and one tunnel between Landskrona, Sweden and Copenhagen, Denmark. The connection is planned for passenger trains, and other proposals for the tunnels include freight rail and road tunnels. There is still no decision on the construction of the HH-route. Neither the Danish nor Swedish governments have committed to scheduling or financing. Local and regional authorities are involved in the project. The largest proposals for connecting the two countries' railways include two new high-speed railways: Jönköping–Helsingborg (Europabanan, 250 km) and Helsingør–Copenhagen (50 km). A tunnel for freight trains would also need gentle inclines, making the tunnel 15 km long with railway stations deep underground, or to have separate tunnels for freight and passenger trains. If a freight railway tunnel is built then the connecting railway, Hässleholm–Helsingborg (75 km), would need to be upgraded to double track and a new freight railway, Helsingør–Roskilde (60 km), would need to be built. Various Danish governments over the years have rejected the idea, especially freight trains and more road traffic through North Zealand such as the proposed Ring 5 motorway. As such, the project has never been given any high priority in Denmark. After Sweden had a change of government in the 2014 elections, the new Löfven government stated the HH Tunnel project was "one of several" they had in mind.