NONCONTACT ASSESSMENT OF HIGHWAY SURFACE VULNERABILITY TO WATER INDUCED DAMAGE

Research output: Contribution to journalArticle

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.
LanguageEnglish
Pages39-49
JournalInternational Journal of Pavements
Volume10
Issue number1-2-3
Publication statusPublished - 2011

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vulnerability
road
damage
texture
pavement
water
microtopography
raster
containment
gauge
information system
drainage
hydraulics
surface water

Cite this

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title = "NONCONTACT ASSESSMENT OF HIGHWAY SURFACE VULNERABILITY TO WATER INDUCED DAMAGE",
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.",
author = "Phillip Millar and David Woodward",
year = "2011",
language = "English",
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NONCONTACT ASSESSMENT OF HIGHWAY SURFACE VULNERABILITY TO WATER INDUCED DAMAGE. / Millar, Phillip; Woodward, David.

Vol. 10, No. 1-2-3, 2011, p. 39-49.

Research output: Contribution to journalArticle

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AU - Woodward, David

PY - 2011

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AB - 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.

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