Road texture

Road surface textures are deviations from a planar and smooth surface, affecting the vehicle/tyre interaction. Pavement texture is divided into: Microtexture with wavelengths from 0 mm to 0.5 millimetres (0.020 in), Macrotexture with wavelengths from 0.5 millimetres (0.020 in) to 50 millimetres (2.0 in) and Megatexture with wavelengths from 50 millimetres (2.0 in) to 500 millimetres (20 in).