1:38 pm today

Papamoa East interchange.

New Zealand needs to require infrastructure plans to be strategically prioritised and include a mandatory cost-benefit analysis (CBA) to ensure billions of dollars of taxpayer-funded projects deliver what is promised, a new report says.

Research by engineering firm WSP and the Helen Clark Foundation indicated a need for a more consistent, disciplined, evidence-led approach to infrastructure investment, with billions of taxpayer dollars being spent every year.

The report said New Zealand faced significant and compounding pressures, including an ageing population, climate change, fiscal constraint, and an estimated $193 billion in unfunded infrastructure in the national pipeline.