Railway electrification in New Zealand Railway electrification in New Zealand Railway electrification was initially adopted by the New Zealand Railways in New Zealand for long tunnels; the Otira Tunnel, the Lyttelton Rail Tunnel and the two Tawa Tunnels of the Tawa Flat Deviation. Electrification of Wellington suburban services started with the Johnsonville Line and Kapiti Line out of Wellington from the 1930s. Auckland suburban services were electrified in 2014–15. Electrification of long distance services on the North Island Main Trunk (NIMT) dates from 1986, although KiwiRail is now considering diesel operation of the NIMT. New long tunnels e.g. the Rimutaka Tunnel and the Kaimai Tunnel
Tauern Railway Tunnel Tauern Railway Tunnel The Tauern Railway Tunnel () in Austria is the longest tunnel of the Tauern Railway crossing the main chain of the Alps. Currently, it has a length of . The highest point of the tunnel, which is also the highest point in all of the railway line, is at above sea level. The tunnel's north entrance is at Böckstein in the valley of Bad Gastein in the state of Salzburg, the south entrance near Mallnitz in Carinthia. Plans for constructing an interconnection railway line between the terminus of the Austrian Western Railway at the city of Salzburg