RUN OFF PREDICTION IN CONNECTION WITH ROAD DRAINAGE

BESTAEMNING AV AVRINNING I SAMBAND MED DRAENERING AV VAEGAR

The aim of this work was to compare theoretical runoff estimates with actual field measurements from small runoff areas. Runoff records were taken from two areas where continuous measurements had been made for several years. These field data were analysed statistically in order to find the runoff peak within a period of 50 years. Analyses were then carried out for the same areas by two theoretical-empirical methods. In method I the area is divided into smaller parts with similar runoff conditions, which are calculated separately and then summed up. Method II is a more schematic procedure for rural areas, based upon formulae suggested by the Swedish Meteorological and Hydrological Institute. Of the two methods examined, method I proved to be best, the inherent problem being however to provide correct input data. Especially the runoff coefficients have a decisive effect on the results. Method II proved itself to be much too schematic. This method gave values far too high for both the areas examined. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    KTH Royal Institute of Technology, Sweden

    Stockholm,   Sweden  SE-100 44
  • Authors:
    • Eriksson, U
    • JOHANSSON, L
  • Publication Date: 1984

Language

  • Swedish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00396253
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: 1984:4 Monograph
  • Files: ITRD, TRIS
  • Created Date: Jan 31 1986 12:00AM