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dc.contributorVirginia Tech. Virginia Tech Transportation Instituteen_US
dc.contributor.authorBeautru, Y.en_US
dc.contributor.authorCerezo, V.en_US
dc.contributor.authorDo, M.T.en_US
dc.contributor.authorKane, M.en_US
dc.date.accessioned2014-09-05T19:54:45Z
dc.date.available2014-09-05T19:54:45Z
dc.date.issued2012en_US
dc.identifier.urihttp://hdl.handle.net/10919/50447
dc.description.abstractMost of past research on the skid resistance/road wetness relationship deal with thick water depths (> 1mm). Questions remain as to the variation of skid resistance with thin water films and the transition between the dry state and the so-called “damp” or “humid” state at which the skid resistance drop can be as high as 30-40%. This paper deals with a theoretical and experimental assessment of the friction/water depth relationship. The main objective is to estimate local water depths trapped between the tire and the road asperities and to define a so-called “critical” water depth which can be used for driver assistance systems. Tests are performed in laboratory and on test tracks. It was found that the friction-water depth curves have an inverse-S shape and present an initial constant-friction part before decreasing to a minimum value. A “critical” water depth, defined as the water depth above which the friction coefficient collapses significantly, is determined from observed friction-water depth curves. Influence of test speed and road surface texture on critical water depth is discussed.en_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.subjectSkid resistanceen_US
dc.subjectWater depthen_US
dc.titleInfluence of Thin Waterfilm on Skid Resistanceen_US
dc.typeArticleen_US
dc.title.serial7th Symposium on Pavement Surface Characteristics: SURF 2012en_US
dc.type.dcmitypeTexten_US


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