RUTS AND WAVES IN THE ROAD SURFACE. PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM: ROAD DEVELOPMENT AND SAFETY, LUXEMBOURG, JUNE 1989

The characteristics of a road and a road surface should not change unexpectedly, if traffic is to be kept safe and under control. When it is raining some water remains in the ruts, but it is impossible to see how thick the water layer is. Thick water layers can cause hydroplaning and the behaviour of the vehicle becomes unpredictable. If there are waves in the road surface the driver cannot perceive loss of contact with the road surface, especially when it is wet. Knowledge on accidents, in which ruts and waves played a part does not seem to exist. Knowledge on driver behaviour due to the occurrence of waves or ruts is lacking. It has been possible, though, to design a calculation model for determining the maximum thickness of the water layer, which either does not cause hydroplaning, or only slightly increases the risk of hydroplaning. An acceptable rut depth can thus be determined, and this is far less than the actual maintenance rate. The small quantity of knowledge on waves makes it impossible to state recommendations on them. Research into accidents and driving behaviour and on the contact between tyre and road surface with waves is recommended. For the covering abstract of the conference see IRRD 828172.

  • Corporate Authors:

    Institut National de Recherche Routiere (INRR)

    75, Rue de Mamer
    Luxembourg,   Luxembourg 
  • Authors:
    • TROMP, J
  • Publication Date: 1989

Language

  • Undetermined

Media Info

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Filing Info

  • Accession Number: 00604547
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM