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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

porous pavement

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Drainage and Sewerage
  • Definition : Reservoir pavement constructed and maintained with porous materials in some or all layers of the structure. Note: the voids thus extend from the surface (asphalt, porous concrete or porous blocks) to the subgrade and can store water and/or air and combine water storage and filtering functions with vehicle noise absorption functions.

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