ABSTRACT
Road surface macro-texture is important for skid resistance, rolling resistance, noise and other tire/surface interface properties. Methods of measurement include the contact volumetric patch technique and non-contact 2D and 3D methods using laser and photogrammetry techniques. This paper considers an initial investigation of a reference surface to calibrate or check the accuracy of 3D methods. A 3D surface was prepared based on an existing profile for 2D devices. 3D models of this reference surface were created using 3D laser and photogrammetry methods and compared with known dimensions. This found good agreement between the known dimensions of the 3D reference surface and parameters determined from analysis of 3D laser and photogrammetry 3D models.
