Influence of Thin Waterfilm on Skid Resistance
| dc.contributor | Virginia Tech Transportation Institute | en |
| dc.contributor.author | Beautru, Yannick | en |
| dc.contributor.author | Cerezo, Veronique | en |
| dc.contributor.author | Do, Minh-Tan | en |
| dc.contributor.author | Kane, Malal | en |
| dc.date.accessioned | 2014-09-05T19:54:45Z | en |
| dc.date.available | 2014-09-05T19:54:45Z | en |
| dc.date.issued | 2012 | en |
| dc.description.abstract | Most 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 |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.uri | http://hdl.handle.net/10919/50447 | en |
| dc.language.iso | en_US | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject | Skid resistance | en |
| dc.subject | Water depth | en |
| dc.title | Influence of Thin Waterfilm on Skid Resistance | en |
| dc.title.serial | 7th Symposium on Pavement Surface Characteristics: SURF 2012 | en |
| dc.type | Article | en |
| dc.type.dcmitype | Text | en |
Files
Original bundle
1 - 1 of 1