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
Dudley Railway Tunnel would make use of the tunnel. The re-opening of Dudley tunnel and the railway on which it runs would also make an ideal diversion route for passenger trains if the need arose, although the idea of re-introducing passenger trains on the route (as was proposed in 1985 and again in 1997) seems unlikely to proceed. Dudley Railway Tunnel Dudley Railway Tunnel is a railway tunnel located near to the former Dudley railway station in Dudley, West Midlands, England. It was opened in 1850 to allow the Oxford-Worcester-Wolverhampton Line between Stourbridge and Wolverhampton to pass for several hundred yards beneath a