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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

texture depth by sand patch test

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Road Surface Characteristics
  • Definition : Mean texture depth expressed as the quotient of a given volume of sand and the area of that material spread in a circular patch on the surface being tested. Note: the sand may be replaced by another standardized material, such as glass spheres.

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