State Highway 1 Centennial Highway, Lower North Island

Wellington’s coastline north to the Kāpiti Coast

Flexible median barriers, safer speed limit, improved signs and markings were just some of the interventions installed on the State Highway 1 (SH1) Centennial Highway to reduce the number of people being killed and seriously injured on this road.

Following Wellington’s coastline north to the Kāpiti Coast, the Centennial Highway was a treacherous piece of road that over 11 years saw 17 people killed and 15 seriously injured.

To reduce the number of people being killed and seriously injured on this road, a 3.5km flexible median barrier was installed along two sections from north of Pukerua Bay to just south of Paekākāriki. Alongside new median barriers, the speed limit was lowered from 100km/h to 80km/h to improve safety. Each time the barriers are damaged, a serious crash or a potential head on collision has been avoided.

Since these improvements were made, no one has been killed on the road and there was a significant reduction in serious injuries.

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