Standardizing the macro-roughness of surfaces
Issues of improving the methods of standardizing macro-rough coverings on an example of geometry of road coverings surfaces are considered in the paper. It is off ered to use additionally parameters of different height of active bulges and different depth of hollows of macro-roughness. As the key parameters, there was regarded diff erent altitude of active roughness bulges contacting with wheels of vehicles, and diff erent depth of the coverings` hollows which are responsible for dissimilarity of volumes of solution of deicing material in space between the rubble grains. Similarly to the methodical maintenance of the state standard GOST 2789-73, it is offered to use in addition a way of estimating the average quadratic deviation of different altitude and different depth of macro-roughness by the indications of measurements of ten active bulges and ten hollows.