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

  • Iteris’ ClearGuide answers USDoT call on traffic fatalities
    January 17, 2022
    Jeff Venables of Iteris explains the new approach ClearGuide Speeding Analytics takes to help US agencies realise their USDoT safety initiatives as road deaths soar
  • Report highlights cost effectiveness of crash reduction strategy
    November 21, 2017
    Local authorities in the UK needs an immediate injection of £200 million to tackle the high risk road sections, according to a new report from the Road Safety Foundation charity and Ageas UK. Called Cutting the Cost of Dangerous Roads, the report reveals that UK motorways and ‘A’ roads on the EuroRAP network make up 10% of the road network that contains half of all road deaths. It found that single carriageway ‘A’ roads have a risk factor seven times higher than motorways and nearly three times that of d
  • WiM avoids bumps in the road
    May 5, 2020
    Road surfaces are deteriorating as years of budget squeezes bite among local authorities. Adam Hill asks leading Weigh in Motion players what effect this might be having on the accuracy of their technology – and how authorities can be made to see that WiM is a helpful tool
  • Xerox counts on machine vision for high occupancy enforcement
    October 29, 2014
    Machine vision techniques can provide solutions to some of the traffic planners most enduring problems With a high proportion of cars being occupied by the driver alone, one of the easiest, most environmentally friendly and cheapest methods of reducing congestion is to encourage more people to travel in each vehicle. So to persuade people to share rides, high occupancy lanes were devised to prioritise vehicles with (typically) three of more people on board and in some areas these vehicles are exempt from