A spate of near-collisions between motorists and trains at level crossings have prompted a warning to drivers.
Train drivers have reported 19 incidents this year where motorists have ignored active safety measures, such as flashing lights and bells, and crossed in front of approaching trains, KiwiRail said.
Four of those incidents involved motorists who drove around other vehicles already stopped at the crossing. In one the driver was forced to swerve to avoid the train.
"We are horrified to think motorists would deliberately put themselves, and any passengers they may have, in such grave danger," said KiwiRail chief executive Jim Quinn. "There is no journey so important that it can't wait a couple of minutes.
"Trains are large and heavy and can be travelling faster that they appear and simply cannot stop quickly. There is nothing our train drivers can do when confronted with a situation like this other than to sound their horn, and hope for the best. It is a very distressing situation for them."