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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

study area

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Traffic Traffic Engineering
  • Definition : Any group of traffic analysis zones combined for the purpose of studying traffic flows.

Untersuchungsgebiet

  • Language : PIARC Road Dictionary / German
  • Theme : Betrieb Verkehr Verkehrstechnik
  • Definition : Gruppe der Verkehrsgebiete, die im Rahmen einer Verkehrsuntersuchung betrachtet werden.