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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

traffic category

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Traffic Traffic Engineering
  • Definition : Road category defined as a function of the number of vehicles carried per day and the percentage of heavy goods vehicles on the most heavily loaded traffic lane.

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