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
Cross Creek railway station the driver had to sound three short whistle blasts in rapid succession, at frequent intervals. No such emergency is known to have occurred. In considering alternatives for a railway between the Hutt Valley and the Wairarapa district to bypass the increasingly costly Rimutaka Incline, various proposals for a tunnel were considered that would have involved an eastern portal emerging at Cross Creek. Despite all the work done on investigating these ideas, the alignment eventually chosen was one that saw the tunnel emerging into the Wairarapa in a gully to the north. Once work commenced on the Rimutaka Tunnel, the fate