Term of the Road Dictionary


  • Language : PIARC Road Dictionary / English
  • Theme : Roads Design Pavements
  • Definition : Part of a road structure formed by the material(s) situated down to about 1 m below the capping layer (or below the subbase layer in the absence of a capping layer) [Egis/PIARC].

Back to theme

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 "Continue" button.