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.

Join us
You cannot identify yourself because you have not chosen to accept cookies for the operations of the site. You can change your settings.

Your basket

Follow PIARC

Term of the Road Dictionary

skid resistance

Language : PIARC Road Dictionary / English
Theme : Operations Road Surface Characteristics
Definition : Friction that resists relative movement at the interface between a vehicle tyre and a trafficked surface when braking forces are applied to the wheel.
Synonyms : non-skid quality

Griffigkeit

Language : PIARC Road Dictionary / German
Theme : Betrieb Fahrbahneigenschaften
Definition : Einfluss der stofflichen Beschaffenheit und geometrischen Feingestalt der Fahrbahnoberfläche auf die Größe der maximal vom Reifen auf die Straße abstützbaren Antriebs-, Brems- und Seitenkräfte.