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Project introduction

As part of Road to Zero’s speed and infrastructure programme, Waka Kotahi NZ Transport Agency is making the stretch of State Highway 1, between Cambridge and Piarere safer.

  • Project type

    Road improvements
  • Project status


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About the project

SH1 between Cambridge to Piarere is part of one of the country’s most important transport corridors. The Auckland-Hamilton-Tauranga corridor accounts for a significant proportion of all road freight in New Zealand.

To make this stretch of road safer, a number of safety improvements including flexible median barriers are being installed to reduce the number of serious crashes along this section of state highway. These changes support our Road to Zero vision.

Find out more about the project and the staged delivery for the safety improvements

Construction of flexible road safety barriers video

Flexible road safety barriers have been installed on State Highway 1 south of Cambridge (from Fergusson Gully Road in a southerly direction for 2.5km). These barriers are suited to New Zealand roads as they are narrow so can often be installed without significant widening of the road, making them a cost effective and efficient way of saving lives. Most importantly however, they work. Results show a 70–80 percent reduction in road fatalities wherever they’re installed.