Pavement Friction and Surface Texture: A Contribution to the Determination of the Appropriate Capturing Resolution of Surface Textures

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