Curbs serve a variety of needs, including the carriage of water for road drainage, prevention of erosion and raveling of the pavement edge, channelization of traffic, containment of the road base, and setting of the grade and alignment for the street. One of the most significant advances in curbing is the introduction of integral curbs and gutters, which prevent water from leaking into the subsurface materials and weakening the edge of the road. On asphalt roads, an overlapping step on the gutter also prevents leakage between the gutter and pavement. This is a most important factor in road building in countries with high rainfall, such as equatorial and sub-equatorial Africa, where a cloudburst can wash away as much as one meter of road edge if it is not curbed and drained. With the use of curbing machine, it is possible and economical to place integral curbs, gutters, and drainage channels at the construction site. The economy aspect will be appreciated at a later date when much lower maintenance cost become apparent, the author concludes. (IRF)

  • Supplemental Notes:
    • Presented at the Fourth IRF African Highway Conference, Nairobi, Kenya, January 20-25, 1980. For individual papers see TRIS Accession Numbers 311921 through 311971.
  • Corporate Authors:

    International Road Federation

    525 School Street, SW
    Washington, DC  United States  20024
  • Authors:
    • Vallis, ECM
  • Publication Date: 1980

Media Info

  • Features: Figures; Photos;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00311936
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Jun 9 1980 12:00AM