ONTRACK (Rere Totika in Māori) is the trading name of the infrastructure arm of the New Zealand Railways Corporation (NZRC), the State-owned enterprise that runs nearly all of New Zealand's railways on behalf of the Crown. The trading name was introduced in 2004 after the government repurchased the previously privatised railway infrastructure.1 ONTRACK does not operate revenue rolling stock.
It is responsible for the maintenance and operation of all of New Zealand's main-line rail infrastructure (see List of New Zealand railway lines). Via its subsidiary ONTRACK Infrastructure Ltd it provides rail operators, primarily KiwiRail, with access to the rail network in return for the payment of track access charges. It is also responsible for the maintenance and development of the network.
It is the rail network controller, providing services such as train control and signalling.
It administers a substantial portfolio of land on behalf of the Crown, and derives income from leasing land and buildings on a commercial basis.
The ONTRACK network consists of:
Route length: 3,898 km
Tunnels: 149
Bridges: 2,178
Electrification: 95 km at 1.5 kV DC (Wellington area), 411 km at 25 kV 50 Hz AC (NIMT central section)