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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

powder snow

Language : PIARC Road Dictionary / English
Theme : Operations Winter Serviceability
Definition : Form of snow that occurs when air temperatures are well below freezing (-2 °C or less). Note: this form of snow is relatively fine and drifts very easily, but does not tend to stick to objects. It can usually be handled relatively easily by snow blowers.

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