The Green Party is promising free public transport for students and people under the age of 19.
The party will create a "Green Card" for free public transport to everyone under the age of 19 and people on a disability benefit.
Students at university, polytechnics and in training establishments, including apprentices, will also qualify for free, off-peak public transport, the party said at a transport policy launch in Auckland today.
The Green Card will cost $70 million to $80m a year - the cost of just 1km of National's motorways, said Greens transport spokeswoman Julie Anne Genter.
She said transport costs for a family were almost $40 a week higher than they were in 2013 with transport now representing 15 per cent of household spending at $195.