1. ISO 13473-1, Characterization of pavement texture by use of surface profiles. Part 1: determination of mean profile depth, 1997.
2. ASTM E1845-01, Standard practice for calculating pavement macrotexture mean profile depth, vol. 04.03.
3. ASTM E965-96, Standard test method for measuring pavement macrotexture depth using a volumetric technique, vol. 04.03.
4. EN 13036-1, Road and airfield surface characteristics—test methods—Part 1: measurement of pavement surface macrotexture depth using a volumetric patch technique.
5. Incorporating road safety into pavement management: maximizing asphalt pavement surface friction for road safety improvements;Noyce,2005