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

  • TfL upgrades London’s speed and red light safety cameras
    September 18, 2014
    Transport for London (TfL) has begun work on a programme to overhaul the capital’s road safety camera network; replacing hundreds of old wet film cameras with modern and more efficient digital safety cameras in order to help further reduce casualties on London’s roads. According to TfL, safety cameras have proved successful in reducing road casualties in recent years. At locations where safety cameras operate in the capital, research shows that the number of people killed or seriously injured (KSI) fell
  • Bogotá’s affordable path to safer roads
    April 28, 2022
    Enforcing speed limits on key corridors is a cost-effective way of reducing collisions in the Colombian capital, say the authors of a new study. Andrew Stone talks to them
  • Keeping a weather eye on road conditions
    September 26, 2014
    Drive C2X has shown that advanced warning of poor road conditions could cut fatalities, as David Crawford explains. Connected vehicle (CV)-based warning technologies could mean 6% fewer deaths and 5% fewer injuries in road traffic accidents in Europe, according to the final results of the European Commission (EC) co-funded DRIVE C2X project. According to the European Centre for Information and Communication Technologies (EICT) which provided management support, these “prove that CV systems work and can hav
  • New Zealand government wants fewer road deaths
    July 25, 2019
    The government of New Zealand is developing a plan aimed at reducing 750 deaths and 5,600 serious injuries expected on its roads over the next ten years. Anne Genter, associate transport minister, says: “Most roads deaths and serious injuries are preventable and too many New Zealanders have lost their lives or been seriously injured in crashes that could have been prevented by road safety upgrades.” Genter believes the new target can be achieved mainly by increasing investment in road safety infrastr