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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

katabatic wind

  • Language : PIARC Road Dictionary / English
  • Theme : Environment Climate and Geography
  • Definition : Gravity-induced, downslope flow of relatively cold air.
  • Synonyms : drainage wind

Absteigender Wind, Fallwind

  • Language : PIARC Road Dictionary / German
  • Theme : Umwelt Klima und Geographie
  • Definition : Hangabwärts gerichtetes Abströmen kalter und deshalb schwererer Luftmassen, auch Schwerewind oder katabatischer Wind genannt -- Ein Sonderfall eines Fallwindes ist der warme Föhn im Voralpenland: beim Übersteigen des Gebirges kommt es auf der Luvseite zum A