INVESTIGATING URBAN GROWTH PLANNING IMPACTS ON STORMWATER CONTROL MEASURE PERFORMANCE

Recent awareness of the declining sustainability of urban development is encouraging advocacy for environmental stewardship. This is in turn has initiated a movement towards urban planning initiatives that endeavour to create liveable communities while preserving the natural environment. While stormwater management is a key component of urban metabolism, coordination of stormwater management with sustainable growth planning has thus far been limited. Little consideration has been given to the tradeoffs between development density and stormwater quantity and quality control on a sewershed level. An analytical tool that facilitates comprehensive screening of stormwater management alternatives, based on technical, economic and environmental feasibility, and a given range of density patterns or development scenarios is needed.Probabilistic modeling can be used as an alternative to design storm event and continuous simulation methods to analyse and screen the viability of alternative stormwater management systems. The collection of existing Analytical Probabilistic Models in addition to those developed in this study can be used to investigate the effect of population and/or building density on the performance of different runoff quantity and quality control measures at the sewershed level.