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Title: Initial Findings on Skid Resistance of Unpaved Roads
Accession Number: 01046066
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Unpaved roads have a dynamic surface, which can make it difficult to predict the skid resistance of a section for use in geometric design and gravel selection and to schedule maintenance. This investigation showed that there are three mechanisms for skidding on unpaved roads: intersurface friction, sliding on a thin layer of loose material, and plowing through a thick layer of loose material. The main surface and material properties affecting skid resistance are the stoniness severity and extent, the severity and extent of raveling, and the amount of loose material in the 0.850-mm to 2.00-mm range on the surface. The range of coefficients of friction for unpaved roads is from 0.40 to 0.85, with the lower value being conservative.
Monograph Title: Monograph Accession #: 01084477
Language: English
Authors: Lea, Jeremy DavidJones, David JPagination: pp 49-55
Publication Date: 2007
ISBN: 9780309104432
Media Type: Print
Features: Figures
(3)
; References
(10)
; Tables
(2)
TRT Terms: Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB, ATRI
Created Date: Feb 8 2007 7:44PM
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