KiwiRail reported 145 near-misses in the last year of people trespassing in the rail corridor.
Acting chief executive Iain Hill said extra care needed to be taken around the newly installed overhead electricity wires along the Auckland railway lines.
"We have seen fatalities and injuries on overhead wires in other parts of New Zealand and elsewhere in the world.
"We do not want to have an incident in Auckland so we ask that people stay well clear of these wires at all times.''
Last year there were 18 collisions with vehicles at level crossing, three of them were fatal.
In 2012 there were 16 collisions.
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Safety messages for Aucklanders: Always stay behind the yellow lines at train stations Take care around overhead wires, do not carry tall objects, fly kites or attempt to climb masts carrying wires Do not trespass on the rail corridor. It is illegal and dangerous Pedestrians should cross tracks only at designated pedestrian crossings.