Skip to main content

Vaisala says it’s time to take road weather seriously

“It is time to take road weather seriously,” is how Vaisala’s Danny Johns puts the company’s message to this week’s ITS World Congress delegates, and the wider world. While the monitoring of winter weather is well established, wind, rain and poor visibility can occur at any time of the year and have significant impacts on traffic flows and crash statistics. “We are now mapping road networks to identify weather-sensitive areas to best locate road weather stations – it doesn’t take a lot of rain or wind to
October 12, 2016 Read time: 2 mins
Danny Johns of Vaisala with the road weather system
“It is time to take road weather seriously,” is how 144 Vaisala’s Danny Johns puts the company’s message to this week’s ITS World Congress delegates, and the wider world.

While the monitoring of winter weather is well established, wind, rain and poor visibility can occur at any time of the year and have significant impacts on traffic flows and crash statistics.

“We are now mapping road networks to identify weather-sensitive areas to best locate road weather stations – it doesn’t take a lot of rain or wind to cause an increase in incidents,” said Johns.

Vaisala’s RWS 200 road weather station, displayed on the company’s stand, is fitted with three lasers to measure water, ice and snow and then calculate the available grip. When the grip level falls below a pre-set level, it will either send an alert to the traffic monitoring centre or, particularly in rural locations, automatically activate variable message or speed signs.

“We have had examples of significant decreases in crashes after road weather monitoring stations have been installed,” Johns said.

Related Content

  • February 3, 2012
    Lack of communication jeopardises road weather information
    A lack of communications means that the case for more widespread use of road weather information systems is still not happening, says Vaisala's Jon Tarleton. More effective exchanges up and down the political scale are needed, he adds
  • March 20, 2018
    Vaisala RWS200 deployed on Aurora Smart Road
    Vaisala is displaying its RWS200, a road weather information system that is playing a crucial role on Finland’s Aurora Smart Road, implemented by the Finnish Transport Agency, and equipped to fit research and development needs in the field of smart transport. Information on the road surface state is crucial for researching and developing automatisation, supported driving and maintenance in Arctic traffic.
  • August 5, 2013
    Investment boost for Canada’s weather warning systems
    David Crawford reviews national and regional initiatives to boost Canada’s weather forecasting. Over the next five years Canada’s national weather services are due to benefit from a CAN$248 million injection of funding into the Environment Canada (EC) department to deliver timelier and more accurate weather warnings and forecasts for users including travellers and transport operators. The scheme, set out in the country’s 2013 Economic Action Plan, is to revitalise the services with new investments in federa
  • July 24, 2012
    Cold efficiency
    Tools to support operational decisions in winter maintenance can remove subjectivity and increase efficiency; Vaisala's Danny Johns talks about latest developments Even the presence of trees at the roadside can have an effect on temperature An effective Road Weather Information System (RWIS) network can save a local road authority or jurisdiction tens of thousands of dollars or Euros'-worth of labour and consumables in a single night. Get those winter maintenance operations right over just three or four nig