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

  • Improve and increase mass transit systems to minimise congestion
    January 24, 2012
    Rather looking to solve congestion by spreading the load, perhaps we need to look at concentrating it. Michael L. Sena writes. We humans were made to walk and run at embarrassingly slow speeds by comparison with other, more fleet-footed organisms. The sea is not our natural habitat and we were definitely not designed to fly unaided. Nevertheless, humankind has evolved a method of living during the past century that is dependent on transporting its members over very long distances during relatively short per
  • I-80 Smart Corridor sets the ITS standard for California's Bay Area
    March 23, 2015
    Colin Sowman looks at California’s ‘smartest’ road which will open this spring to counter congestion and accidents on one of the Bay Area’s busiest interstates. Interstate 80 (I-80) is one of the busiest roads in the San Francisco Bay area with up to 270,000 vehicles using the corridor every day. The section between the Carquinez Bridge in Crockett and the Bay Bridge not only suffers congestion during the working week but also at weekends. Traditional remedies such as building additional lanes (there are al
  • I-80 Smart Corridor sets the ITS standard for California's Bay Area
    March 23, 2015
    Colin Sowman looks at California’s ‘smartest’ road which will open this spring to counter congestion and accidents on one of the Bay Area’s busiest interstates. Interstate 80 (I-80) is one of the busiest roads in the San Francisco Bay area with up to 270,000 vehicles using the corridor every day. The section between the Carquinez Bridge in Crockett and the Bay Bridge not only suffers congestion during the working week but also at weekends. Traditional remedies such as building additional lanes (there are al
  • Bristol’s buses trial CycleEye detection system
    July 7, 2017
    Fusion Processing’s Jim Hutchinson looks at a two-year trial of the company’s cyclist detection system. Is cycling in a city dangerous? Well, that depends where you are and how you view statistics. Malmö is far more bike-friendly than Mumbai and the risk can either be perceived as small - one death per 29 million miles cycled in the UK in 2013 - or large - that equated to 109 deaths in the same year. Whatever your personal take on the data, the effect of these accidents can be felt indirectly too. News of c