RURAL ROADS ARE DIFFERENT: THE FIRST STEPS TOWARDS A PAVEMENT DESIGN METHOD FOR RURAL ROADS

PLATTELANDSWEGEN ZIJN ANDERS: DE EERSTE STAPPEN RICHTING EEN DIMENSIONERINGSMETHODE VOOR PLATTELANDSWEGEN

This report is an account of the first phase of a research initiated by the Pavement Design Rural Roads Working Group (Werkgroep Ontwerp Verhardingen Plattelandswegen, WOVP) of the Dutch Landinrichtingsdienst. The aim of the research is to develop pavement design and evaluation methods especially for flexible rural roads. Models are being developed to predict the service life of a road construction on the basis of data that can be collected easily. Data on the following variables (so-called service life indicators) were collected for twelve road sections: a) geometry; b) traffic volume; c) bearing capacity of the subsoil; d) thickness of the asphalt and the roadbase; e) composition of the asphalt; f) degree of compaction of the asphalt; g) deflection values; h) results of visual inspection; i) age. Relationships between the service life and these indicators were assessed via regression analysis. The most significant service life indicator is the Modified Structural Number, which expresses the thicknesses and stiffnesses of the separate layers of a road construction as well as the bearing capacity of the subsoil. The Modified Structural Number is used in the development of basic pavement design models, which give insight into the service life predicting ability of the indicators.

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  • Corporate Authors:

    Landinrichtingsdienst

    Afdeling Wegen en Verkeer, Griffioenlaan 2
    Utrecht,   Netherlands 
  • Authors:
    • den Heijer, M
    • BODE, A G
  • Publication Date: 1993-11

Language

  • Dutch

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Filing Info

  • Accession Number: 00664855
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • Files: ITRD
  • Created Date: Sep 9 1994 12:00AM