THE PREDICTION OF DESIGN STORMS IN DEVELOPING COUNTRIES

Work has been carried out over ten years in east Africa to develop improved methods of estimating flood flows. In urban areas the objective has been to design surface water sewer systems, and in rural areas to estimate the waterway size of road bridges and culverts. In both cases the methods developed involve routing design storms through flood models. Suitable design storms had to be developed as part of the programme. In this paper the rainfall techniques developed are described. Recent, similar, rainfall studies in Papua, New Guinea are also briefly referred to. The paper deals with (1) choice of design storm; (2) prediction of daily totals; (3) depth-duration relationships; (4) area reduction factors; (5) estimation of storm profile. /TRRL/

• Supplemental Notes:
  • Proceedings from Highway Design in Developing Countries.
• Corporate Authors:

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 
• Authors:
  • Fiddes, D
• Publication Date: 1975

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 96-106
• Serial:
  • Publication of: Colloguium Verkeersplanologisch Speurwerk
  • Publisher: Colloguium Vervoersplanologisch Speurwerk

Subject/Index Terms

• TRT Terms: Conferences; Culverts; Design; Developing countries; Floods; Forecasting; Highway bridges; Mathematical models; Rain; Rainfall; Rural areas; Sewerage; Urban areas; Weather forecasting
• Geographic Terms: Africa; Kenya; United Kingdom
• ITRD Terms: 8001: Africa; 8525: Conference; 9011: Design (overall design); 150: Developing countries; 132: Forecast; 8055: Kenya; 6473: Mathematical model; 2507: Rain; 8119: United Kingdom
• Subject Areas: Bridges and other structures; Design; Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00142771
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Proceeding
• Files: ITRD, TRIS
• Created Date: Jul 19 1977 12:00AM