Another empty coal train is arriving into Arthurs Pass to get ready to travel through the Otira tunnel. Here 3 more DXC's will couple onto the front of the train to help the train with the grade in the tunnel.
Trains on 3' 6" (1.067m) track from Whangarei to Bluff with virtually heritage rebuilt EMD and GE locomotives still the mainstay power. The network was privatized in 1990's and operated by Toll until 2008 when state owned KiwiRail was established.