Guide for Pavement Friction PDF Download
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Author:
Publisher: AASHTO
ISBN: 1560514280
Category : Pavements
Languages : en
Pages : 87
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Book Description
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.
Author:
Publisher: AASHTO
ISBN: 1560514280
Category : Pavements
Languages : en
Pages : 87
Get Book Here
Book Description
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.
Author: F. E. Behn
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 84
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Book Description
Author: Bob M. Gallaway
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 36
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Book Description
Author: Bob M. Gallaway
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
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Book Description
Author: James C. Wambold
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 84
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Book Description
"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.
Author: Glenn G. Balmer
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 48
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Book Description
"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
Author: AB. Moore
Publisher:
ISBN:
Category : Dynamic tests
Languages : en
Pages : 10
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Book Description
Equipment was designed and built to conduct skid resistance tests at speeds up to 75 mph. Results of tests indicate that the skid performance of a pavement surface may be adequately projected from the standard 40-mph test speed. Texture measurements on surface cores may be used to predict 40-mph skid numbers (SN) with a reasonable degree of accuracy. SN's, determined from texture measurements, exhibit a high degree of correlation with locked wheel skid values.
Author:
Publisher: ASTM International
ISBN:
Category : Motor vehicles
Languages : en
Pages : 168
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Book Description
Author: B. D. Murray
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 16
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Book Description
Author: Xianhua Chen
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 8
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Book Description
Real-time measurement of the tire-road friction coefficient is extremely valuable for road-maintenance operations and highway safety management. This paper presents a systematic framework to predict skid resistance of wet pavement with a non-contact method, which could be a potential approach for real-time measurements of pavement friction. The grip potential of pavement is estimated according to the measured pavement texture based on theoretical simulation of the complete hysteresis and partial adhesive effects during tire sliding on wet pavement. Such a method could be potentially used for the purpose of harmonization analysis of skid resistance and potential capability of optimization of pavement surface texture.
