Abstract
AbstractWith increasing concern for the deteriorating water quality of urban water bodies, planning for urban runoff control should simultaneously consider both quantity and quality management. This paper introduces a methodology for preliminary planning of urban runoff quantity and quality control. The methodology consists of three basic steps: rainfall analysis, prediction of runoff control system performance, and determination of least‐cost combinations of control measures. An application is demonstrated by employing the methodology to the Barrington catchment in East York, Toronto. This methdology is particularly suited to the preliminary planning of urban runoff control because control system performance is predicted by analytical models rather than by continuous simulation methods. Additionally, both the cost and performance of various combinations of control measures are analysed in the planning process. As a result, it enables decision maker to understand the cost of satisfying quantity and quality standards for urban runoff control.
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