Skip to main content

New Zealand’s first weather-activated road signs go live

New Zealand’s first weather-activated road signs with adjustable speed limits have gone live on State Highway 29 over the Kaimai Range. The 22 high-tech signs are part of an innovative NZ Transport Agency trial that aims to reduce the crash rate on the steep road, which links the Waikato and the Bay of Plenty. The variable speed signs, along with four web cameras, will be linked to a weather station at the summit of the Kaimai Range. The Transport Agency will monitor the weather station and adjust the
November 3, 2015 Read time: 2 mins
New Zealand’s first weather-activated road signs with adjustable speed limits have gone live on State Highway 29 over the Kaimai Range.

The 22 high-tech signs are part of an innovative NZ Transport Agency trial that aims to reduce the crash rate on the steep road, which links the Waikato and the Bay of Plenty.

The variable speed signs, along with four web cameras, will be linked to a weather station at the summit of the Kaimai Range. The Transport Agency will monitor the weather station and adjust the speeds between 30km/h to 100km/h depending on conditions. They will also be used during road works or in the event of a crash when speeds may be reduced to as low as 30km/h. The speeds will be enforced by police.

The Transport Agency’s chief safety advisor, Colin Brodie says the two year trial aims to encourage people to drive at safe speeds when rain, ice and fog hit the Kaimai Range.

“Our data shows that over 70 per cent of the crashes on the Kaimai Range happen in wet weather, and that over 40 per cent of these were caused by drivers travelling too fast for the conditions,” he says.“Despite the changeable weather on the Kaimai Range people still attempt to travel at 100km/h.”

Brodie says the Transport Agency is working closely with police and others to reduce deaths and serious injuries on New Zealand roads, as part of the Government’s Safer Journeys strategy. If it is successful, and there is a reduction in death and serious injuries within the trial site, it may be rolled out across similar sites around New Zealand.

Related Content

  • The effectiveness of roads policing
    March 6, 2015
    The Joint Roads Policing Unit of Thames Valley Police and Hampshire Constabulary in the UK commissioned the Transport Research laboratory (TRL) to evaluate the effectiveness of their roads policing strategy in terms of reducing the number of people killed and seriously injured in road collisions. The focus was on the fatal four causes of collisions: speeding, drink-driving, not wearing a seat belt and drivers using mobile phones. TRL carried out a detailed literature review, in-depth review and analysis of
  • Road traffic deaths still rising worldwide, says WHO report
    December 12, 2018
    Poor road safety worldwide is a serious cause for concern, with thousands being injured or killed across the glove every single day. The issue is highlighted by a new report by the World Health Organisation (WHO). This indicates road traffic deaths continue to rise, with annual road fatalities now reaching 1.35 million, compared with 1.25 million just three years ago. The WHO Global status report on road safety 2018 highlights that road traffic injuries are now the leading killer of children and young pe
  • Should it be end of the road for right-turns on red?
    April 10, 2024
    Banning right-hand turns after stopping for a red light is gaining momentum in the US. But the debate continues about whether it will result in fewer incidents between vehicles and alternative mobility users. David Arminas reports
  • Australia assesses 30km/h safety benefits
    May 6, 2021
    Trial in Yarra near Melbourne found that vehicle speeds fell and residents approved