THE ADAPTATION OF THE RRL HYDROGRAPH METHOD OF STORM SEWER DESIGN FOR TROPICAL CONDITIONS

The RRL hydrograph method has been shown to be an accurate method of predicting flood flow from areas where the major component of the hydrograph is runoff from paved areas. In the tropics the unpaved contribution can be considerable. This report describes a network of catchments which were instrumented to provide data for the modification of the method to allow for this unpaved runoff. The unpaved component is allowed for in the modified program by including a linear reservoir sub routine. A comparison is made of the performance of the model with the rational method. (a) /TRRL/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Ford, W G
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 43 p.

Subject/Index Terms

• TRT Terms: Drainage; Drainage basins; Floods; Hydrographs; Hydrology; Mathematical models; Pavements; Runoff; Storm sewers; Tropics; Weather forecasting
• Uncontrolled Terms: Models
• ITRD Terms: 4318: Catchment area (hydrol); 2937: Drainage; 2569: Flooding; 4332: Hydrology; 6473: Mathematical model; 2955: Pavement; 4329: Run off; 2513: Tropics
• Subject Areas: Highways; Hydraulics and Hydrology; Pavements; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00142768
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL Lab. Rpt. 715 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Jul 19 1977 12:00AM