Questions are being raised as to whether Aotearoa should take a page from the United States' book when it comes to our roads. 

Concrete New Zealand-commissioned research shows road maintenance costs using the material are up to 62% lower than asphalt. 

It also shows that, on average, concrete roads are 17% cheaper over 40 years. 

Chief Executive, Rob Gaimster told Mike Hosking America has a good model, with half of their roads concrete. 

He says New Zealand has a pothole crisis and is spending billions on roads but is still building in the same way. 

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