CROSSFALL TRANSITIONS AND RAINFALL

DE VERKANTINGSOVERGANG BIJ REGENVAL

For some years the Netherlands State Road Laboratory has investigated the consequences of the presence of rain water on road surfaces. In the first place these investigations concern cross-fall transition, a common geometric detail of the road profile that strongly interferes with a rapid drainage of rain water. The frictional forces that can be transmitted between the tyre and road surface are greatly reduced by the presence of water-layers only a few millimetres in depth. The water layer thickness at any point of a road surface depends on the crossfall and longitudinal slope, the surface texture, the length of the drainage path and the presence of ruts. These factors are discussed in the report together with a number of measures to reduce the water nuisance. The measures are intended to prevent the influence factors from attaining unfavourable values. They include: the construction of transverse drainage channels or grooves on the road surface, a high-quality surface dressing based on synthetic resins, and the use of highly pervious asphaltic concrete for the wearing course. /TRRL/

  • Availability:
  • Corporate Authors:

    Verenging Het Nederlandsche Wegencongres

    Postbus 2200
    The Hague,   Netherlands 
  • Authors:
    • Welleman, T
  • Publication Date: 1976-5

Language

  • Dutch

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 143-155
  • Serial:
    • WEGEN
    • Volume: 50
    • Issue Number: 5
    • Publisher: CROW
    • ISSN: 0043-2067

Subject/Index Terms

Filing Info

  • Accession Number: 00174072
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jun 28 1978 12:00AM