Welcome on piarc.org!

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.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

Term of the Road Dictionary

slippage crack

  • Language : PIARC Road Dictionary / English
  • Theme : Operations Road Surface Characteristics
  • Definition : Curved (usually parabolic) crack generally appearing in a deceleration area, where the surface course of the pavement adheres poorly to the underlying layer.
  • Synonyms : tearing crack

Riss wegen mangelndem Verbund

  • Language : PIARC Road Dictionary / German
  • Theme : Betrieb Fahrbahneigenschaften
  • Definition : Ein gekrümmter (gewöhnlich parabolförmiger) Riss, der im Allgemeinen in einem Verzögerungsbereich auftritt, in dem die Deckschicht der Befestigung schlecht an der darunter liegenden Lage haftet.