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

  • Project EDWARD: European Day Without A Road Death
    August 31, 2016
    The first European Day Without A Road Death (Project EDWARD) is taking place across Europe on Wednesday 21 September. Devised by the European Traffic Police Network (TISPOL), the initiative aims to draw attention to the average of 70 deaths occurring every day on the roads of Europe. Project EDWARD has the support of European Transport Commissioner Violeta Bulc, the European Commission, the European Transport Safety Council and traffic police forces from across TISPOL’s 30 member countries.
  • Danish study shows higher speed limits are safer
    February 25, 2014
    A two-year experiment by the Danish road directorate shows accidents have fallen on single-carriageway rural roads and motorways where the speed limit was raised. Since the speed limit on some stretches of two-way rural roads was increased from 80 to 90 km/h, accidents have decreased due to a reduction in the speed differential between the slowest and fastest cars, resulting in less overtaking. The slowest drivers have increased their speeds, but the fastest 15 per cent drive one km/h slower on average
  • US States use technology and smart solutions to battle winter weather
    December 18, 2013
    US state Departments of Transportation (DOTs) are gearing up to meet the challenge of maintaining a high level of service during the winter without the benefit of additional financial resources. High-tech solutions like GPS guidance systems and low-tech products like potato juice are helping states to cut costs, improve efficiency, and minimise environmental impacts. The Alaska Department of Transportation and Public Facilities uses a variety of advanced technologies to combat extreme winter weather and