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NONCONTACT ASSESSMENT OF HIGHWAY SURFACE VULNERABILITY TO WATER INDUCED DAMAGE

Millar, Phillip and Woodward, David (2011) NONCONTACT ASSESSMENT OF HIGHWAY SURFACE VULNERABILITY TO WATER INDUCED DAMAGE. International Journal of Pavements, 10 (1-2-3). pp. 39-49. [Journal article]

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Abstract

The contribution of surface macro-texture to effective and efficient drainage is well established. Failure of a pavement to discharge surface water will impact wet skid resistance and road safety. In addition there may be also significant potential for physical damage to the surface due to freeze/thaw and/or hydraulic forces applied to pockets of trapped water. This paper reports the findings of a study which demonstrates the potential of models of surface micro-topography to highlight and delineate areas of water containment. In this study, triangular irregular networks (TIN) were constructed for a range of remotely captured surface textures. They were combined with raster overlays and depth classified in a proprietary spatial information system to highlight potential areas of water lock-in. Critical entrapment depths are specified for the full range and diversity of textures. The TIN data may be used to gauge the potential susceptibility of a pavement to surface breakdown and trigger appropriate remedial measures.

Item Type:Journal article
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Studies Allied to Built Environment Research (SABER)
ID Code:25666
Deposited By: Dr David Woodward
Deposited On:15 Apr 2013 14:17
Last Modified:17 Oct 2017 16:08

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