Term of the Road Dictionary

runoff coefficient

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Drainage and Sewerage
  • Definition : Portion of runoff (“net rainfall”) resulting from total rainfall. Note: by first appromixation, it is the ratio between the impermealized and the total surface area of a catchment area (imperviousness rate) [Egis/PIARC].

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