Thyer, Mark Maier, Holger Di Matteo, Michael Evaluating the Benefits of Smart Stormwater Systems <div><p></p><p>There is significant promise for the use of smart, distributed stormwater storage for addressing a range of challenges associated with integrated urban water management, including</p><p></p><p></p><ul><p></p><p></p><li>Flood control via peak flow reductions and/or reduced infrastructure costs</li><p></p><p></p><li>Water for urban greening and cooling</li><p></p><p></p><li>Improving the quality of receiving waters.</li><p></p><p></p></ul><p></p><p></p><p>This study assessed the benefits and costs of a range of stormwater storage options, including smart operation, for urban stormwater systems The benefits assessed include peak overland flow reduction, water re-use potential and water quality impacts. Results were compared with more traditionally used pipe upgrades. The case study catchment was located in the City of Unley, Adelaide, South Australia.</p><p></p><p></p><p> The key conclusions were:</p><p></p><p></p><ul><p></p><p></p><li><strong>Passive distributed storages optimised using machine learning achieves similar peak flow reduction as end-of-system storage with reduced storage size and cost and is easier to implement. <br></strong>Cost savings were 30%-44% compared to an equivalent pipe upgrade</li><p></p><p></p><li><strong>Smart distributed storage with ‘before storm control’ achieves a similar peak flow reduction at similar cost as pipe upgrade with additional water reuse and water quality benefits <br></strong>Cost and peak flow reductions were similar to an equivalent pipe upgrade of approx. 550m to 700m length with the additional benefits of potential water reuse volume of 3.1 ML/year and water quality benefits with reduced total suspended solids (51%), phosphorus (27%) and nitrogen (9%).</li><p></p><p></p><li><strong>Smart distributed storages with ‘during storm’ real-time control</strong> <strong>provide significant potential for additional peak flow reductions or cost savings through storage size reductions</strong>. <br>Further development is required for this technology to be used in practice.</li><p></p><p></p><li><strong>Machine learning / artificial intelligence optimisation methods played an essential role for identifying the optimal location, sizing and operating rules for the distributed storage options.</strong> <br>Due to the high number of potential locations, sizes and operating rules a traditional trial and error design approach would be far slower and unlikely to achieve a similar outcome.</li><p></p><p></p></ul><p></p></div><div></div> smart;stormwater;flooding;urban flooding;Water Resources Engineering 2019-12-03
    https://adelaide.figshare.com/articles/online_resource/Evaluation_of_Benefits_of_Smart_Stormwater_Systems/11307197
10.25909/5de5971f2b4ae