Toward the Determination of the Appropriate Capturing Resolution of Surface Textures in Relation to Pavement Friction

The objective of this work is to determine the appropriate resolution of pavement textures representative of their surface skid resistance. The friction and the texture of different pavement surfaces were first measured. Then, the friction of these pavements was computed using the dynamic friction model (DFM) and the resampled textures at different resolutions. Finally, a comparison of the experimental and model results is made possible to determine the optimal resolution, bringing them as close as possible. After analyzing the results, it was found that the optimal resolution is 500 µm in these study conditions.