Macrotexture

Macrotexture (MaTx) is a family of wave-shaped road surface characteristics. While vehicle suspension deflection and dynamic tyre loads are affected by longer waves (roughness), road texture affects the interaction between the road surface and the tyre footprint. Macrotexture has wavelengths from 0.5 mm up to 50 mm. Other types of road texture are microtexture and megatexture.

Short wave macrotexture is a family of surface properties that can reduce road traffic noise; acoustic pores.

Long wave macrotexture is a family of surface damages that, similarly to megatexture, is a cause of road traffic noise.

Macrotexture also contributes to the speed-dependent part of friction and to wet surface friction.

Road agencies monitor macrotexture using measurements taken with highway speed laser/inertial Profilometers.