National plans to use existing taxes to their full potential as they position themselves as the 'infrastructure party'.

Their housing and transport discussion documents have promised no new excise duty taxes in the first term, and scrapping the Auckland regional fuel tax.

They want to upgrade 10 major roads to across the country and re-examine how speed cameras are used.

National leader Simon Bridges told Mike Yardley they would use the current government's surplus to fund new projects.

He says the government hasn't used the extra $1.7 billion taxed this term, and doesn't see the need for new taxes at this stage.

"They just haven't spent the money which is sitting there. So let's spend what we get, but not pile on new taxes." 

National is also proposing a new tax for driving during peak times, and it's not just targeting Auckland

Bridges says his party is committed to building better network infrastructure, and a congestion tax will combat traffic woes.

"The tax would work well in the big cities. Those who want to go into busy areas at peak times would have to pay for it.

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