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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

road weather conditions

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Winter Serviceability
  • Definition : All the facts and factors used to assess vehicle driving risks in a given region, taking into account the effect of the ambient weather conditions on the road. Note: road weather conditions include visibility on the road and the condition of the pavement, based on temperature, humidity, precipitation and wind readings taken at the road surface [OQLF].
  • Synonyms : roadway weather conditions (US)

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