Pavement Surface Texture Significance And Measurement
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Evaluation of Pavement Surface Texture
Author | : James C. Wambold |
Publisher | : |
Total Pages | : 84 |
Release | : 1984 |
Genre | : Pavements |
ISBN | : |
"It is generally agreed that the skid resistance of a pavement is controlled by the surface texture characteristics. Therefore, by measuring the relevant parameters describing texture, or by measuring a physical process dependent on texture, regression techniques can be used to relate skid resistance to the chosen texture parameter or process. Two scales of texture are of particular importance: microtexture (small-scale asperities) and macrotexture (large-scale asperities). This report describes work performed to: (1) review candidate macrotexture and microtexture measurement methods that can be made at highway speeds (at or above 40 mph), which are presently used or have potential for use in pavement texture measurement; (2) design and build a prototype of the most promising method; (3) evaluate the effects of pavement surface texture on skid resistance; and (4) investigate non-friction-related effects of pavement surface texture. A prototype noncontact vision system which takes texture measurements at highway speeds was developed, and several improvements were made to upgrade the system to provide an advanced-operational prototype. Both hardware and software enhancements have yielded a texture measurement system that is a fast, efficient, and reliable way of obtaining pavement macrotexture data"--Technical report documentation p.
Pavement Surface Texture
Author | : James C. Wambold |
Publisher | : |
Total Pages | : 41 |
Release | : 1984 |
Genre | : Optical measurements |
ISBN | : |
Guide for Pavement Friction
Author | : |
Publisher | : AASHTO |
Total Pages | : 87 |
Release | : 2008 |
Genre | : Pavements |
ISBN | : 1560514280 |
This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
The Significance of Pavement Texture
Author | : Glenn G. Balmer |
Publisher | : |
Total Pages | : 48 |
Release | : 1975 |
Genre | : Pavements |
ISBN | : |
"This paper discusses the influence of roadway surface textures on the skid resistance, the speed-gradient, the wet-pavement accident rate, pavement wear, and the generation of tire-road interaction noise. The tendency of a vehicle to hydroplane is reduced by increasing the texture magnitude. Appropriate textures are developed by using open-graded asphalt friction surface courses and by grooving portland cement concrete with steel tines or a vibrating float while the concrete is plastic. Hardened pavements can be textured by grooving with a diamond saw or by resurfacing with an overlay. More development is needed in texture measurement techniques, especially in automating the stereo-photo interpretation method and the linear polarized laser technique"--Technical report documentation page