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

  • Plastic is fantastic for payment platform interoperability
    April 2, 2014
    The Sino Visitor Pass aims to promote trade between Singapore and China by making travel easier, as Jon Masters finds out. Singapore has notched up another first in transportation innovation with announcement of a dual-currency payment card in partnership with the province of Guangdong in China. From the middle of 2014, visitors to Singapore and Guangdong will be able to use a ‘Sino Visitor Pass’ to pay for use of public transportation among other things.
  • British Columbia's highway corridors show it’s good to share
    June 6, 2025
    The Canadian province is advocating harmony along its major roads, setting aside major funding for projects to allow vehicles and other modes to operate safely side by side, reports David Arminas
  • Lower speed limits on UK rural roads will save lives
    July 16, 2012
    The UK's Department for Transport has unveiled new guidance that will make it easier for 40mph (64km/h) speed limits to be imposed on quiet rural roads. These roads currently have a typical speed limit of 60mph but the Government is keen to change this in a bid to reduce road casualties. The latest figures from the government show that there were 1,901 road deaths in 2011, a three per cent increase on 2010. In 2010, 68 per cent of road deaths occurred on rural roads, of which almost 50 per cent had a speed
  • Platooning with Ease on the I-70
    July 15, 2025
    What would happen to truck platooning - a nascent technology - if the weather turns nasty? The I-70 Truck Automation Corridor Project in the northern US should provide some answers, reports David Arminas…