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While it is true that urban planning is more than good physical design, one can’t deny the fact that sustainable design considerations – right from the early planning phase – would […]" /> <meta property="og:url" content="https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/" /> <meta property="og:site_name" content="DHI Reservoir - Drops of knowledge" /> <meta property="article:publisher" content="https://www.facebook.com/DHIgroup" /> <meta property="article:published_time" content="2020-07-08T02:54:52+00:00" /> <meta property="article:modified_time" content="2023-08-17T05:21:26+00:00" /> <meta property="og:image" content="http://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84.jpg" /> <meta property="og:image:width" content="1000" /> <meta property="og:image:height" content="400" /> <meta property="og:image:type" content="image/jpeg" /> <meta name="author" content="Cecilia Wennberg, Executive Vice President, Water in Cities" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:creator" content="@dhigroup" /> <meta name="twitter:site" content="@dhigroup" /> <meta name="twitter:label1" content="Written by" /> <meta name="twitter:data1" content="Cecilia Wennberg, Executive Vice President, Water in Cities" /> <meta name="twitter:label2" content="Estimated reading time" /> <meta name="twitter:data2" content="4 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"Article","@id":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/#article","isPartOf":{"@id":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/"},"author":{"name":"Cecilia Wennberg, Executive Vice President, Water in Cities","@id":"https://blog.dhigroup.com/#/schema/person/396583931bfcb2c4499935a95e57b181"},"headline":"Shaping the future of our cities with sustainable urban drainage systems","datePublished":"2020-07-08T02:54:52+00:00","dateModified":"2023-08-17T05:21:26+00:00","mainEntityOfPage":{"@id":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/"},"wordCount":923,"publisher":{"@id":"https://blog.dhigroup.com/#organization"},"image":{"@id":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/#primaryimage"},"thumbnailUrl":"https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84.jpg","keywords":["rainfall","stormwater","urban flooding","urban water","urban water modelling"],"articleSection":["Cities","Urban drainage"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/","url":"https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/","name":"Shaping the future of our cities with sustainable urban drainage systems | DHI Reservoir - 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class="header-wrapper"> <div class="header"> <div class="section-inner"> <div class="blog-title"> <a href="https://blog.dhigroup.com" rel="home">DHI Reservoir - Drops of knowledge</a> </div> <div class="blog-description"><p>blog.dhigroup.com</p> </div> <div class="nav-toggle"> <div class="bars"> <div class="bar"></div> <div class="bar"></div> <div class="bar"></div> </div> </div> </div> </div> <div class="navigation"> <div class="section-inner group"> <ul class="primary-menu reset-list-style dropdown-menu"> </ul> </div> </div> <ul class="mobile-menu reset-list-style"> </ul> </header> <main id="site-content"> <div class="wrapper section-inner group"> <div class="content"> <article id="post-1188" class="single single-post group post-1188 post type-post status-publish format-standard has-post-thumbnail hentry category-cities category-urban-drainage tag-rainfall tag-stormwater tag-urban-flooding tag-urban-water tag-urban-water-modelling"> <div class="post-header"> <p class="post-categories"><a href="https://blog.dhigroup.com/category/cities/" rel="category tag">Cities</a>, <a href="https://blog.dhigroup.com/category/cities/urban-drainage/" rel="category tag">Urban drainage</a></p> <h1 class="post-title">Shaping the future of our cities with sustainable urban drainage systems</h1> <div class="post-meta"> <span class="resp">Posted</span> <span class="post-meta-author">by <a href="https://blog.dhigroup.com/author/cecilia-wennberg/">Cecilia Wennberg, Executive Vice President, Water in Cities</a></span> <span class="post-meta-date">on <a href="https://blog.dhigroup.com/shaping-the-future-of-our-cities-with-sustainable-urban-drainage-systems/">8 July 2020</a></span> </div> </div> <figure class="post-image"> <img width="816" height="326" src="https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84.jpg" class="attachment-post-image size-post-image wp-post-image" alt="" decoding="async" fetchpriority="high" srcset="https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84.jpg 1000w, https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84-300x120.jpg 300w, https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84-768x307.jpg 768w, https://blog.dhigroup.com/wp-content/uploads/2020/07/SUDS-banner-Petr84-640x256.jpg 640w" sizes="(max-width: 816px) 100vw, 816px" /> </figure> <div class="related-posts"> <p class="related-posts-title">Read Next →</p> <div class="row"> <a class="related-post" href="https://blog.dhigroup.com/how-digital-twins-help-reduce-energy-use-and-carbon-footprint-in-wastewater-treatment-plants/"> <img width="400" height="200" src="https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1-400x200.jpg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" /> <p class="category"> Cities </p> <h3 class="title">How digital twins help reduce energy use and carbon footprint in wastewater treatment plants</h3> </a> <a class="related-post" href="https://blog.dhigroup.com/digital-twins-in-the-water-sector-what-are-they-and-how-do-we-get-there/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" srcset="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg 400w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-300x120.jpeg 300w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-768x307.jpeg 768w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-816x326.jpeg 816w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039.jpeg 1000w" sizes="(max-width: 400px) 100vw, 400px" /> <p class="category"> Cities </p> <h3 class="title">Digital Twins in the water sector: what are they and how do we get there?</h3> </a> <a class="related-post" href="https://blog.dhigroup.com/the-new-phase-of-disaster-risk-management-are-we-doing-it-right/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-400x160.jpeg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" loading="lazy" srcset="https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-400x160.jpeg 400w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-300x120.jpeg 300w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-768x308.jpeg 768w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-816x327.jpeg 816w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner.jpeg 1000w" sizes="(max-width: 400px) 100vw, 400px" /> <p class="category"> Cities </p> <h3 class="title">The new phase of disaster risk management: are we doing it right?</h3> </a> </div> </div> <div class="post-inner"> <div class="post-content entry-content"> <p>In this new age of ‘green urbanism’, innovative urban planning often includes thoughtful green solutions that bring benefit both to the community and environment.</p> <p>While it is true that urban planning is more than good physical design, one can’t deny the fact that sustainable design considerations – right from the early planning phase – would lead to successful final design and construction that can significantly influence our quality of life in the cities.<br /> <span data-contrast="auto"><span id="more-1188"></span></span></p> <h3><b><span data-contrast="auto">What are s</span></b><b><span data-contrast="auto">ustainable urban drainage systems</span></b><b><span data-contrast="auto">?</span></b><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></h3> <p>Sustainable urban drainage systems (SuDS) or low-impact development (LID) are approaches in managing surface water – taking flooding, pollution, amenities, green living spaces, wildlife habitat and contamination of groundwater sources into consideration. With efficient SuDS in place, governments and water utilities can better manage flood risks and water quality, and as a result improve spaces where we work, live and play.</p> <p>Even in the most modern of cities, it is clear that we are connected to nature in more ways than we think. Most of the time when people think of ‘nature’, they picture places untouched by humans. In reality, you can find nature all around the city, and integrating nature into urban design – like we do with SuDS – not only improves living conditions, it also helps us deal with climate change impacts while protecting the environment.</p> <p>How so? When we include SuDS in our urban design planning and management strategies, we are able to ‘harvest’ surface water (from stormwater runoff and snowmelt) efficiently and consequently preserve the water balance and water quality in catchments and local water bodies, and minimise potential risks of pollution.</p> <h3><b><span data-contrast="auto">T</span></b><b><span data-contrast="auto">raditional</span></b><b><span data-contrast="auto"> versus sustainable</span></b><b><span data-contrast="auto"> urban drainage systems</span></b><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></h3> <p><span data-contrast="auto">T</span><span data-contrast="auto">raditional urban drainage systems </span><span data-contrast="auto">do</span><span data-contrast="auto"> not consider long-term sustainability</span><span data-contrast="auto"> as key</span><span data-contrast="auto"> design criteria </span><span data-contrast="auto">and </span><span data-contrast="auto">are </span><span data-contrast="auto">often </span><span data-contrast="auto">design</span><span data-contrast="auto">ed</span><span data-contrast="auto"> for one main reason: to </span><span data-contrast="auto">transport the water away from the areas where </span><span data-contrast="auto">community interactions are</span><span data-contrast="auto"> </span><span data-contrast="auto">taking place</span><span data-contrast="auto"> and </span><span data-contrast="auto">prevent flooding.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <p><span data-contrast="auto">To do this, rainfall runoff needs to be moved along as quickly as possible. This results in the need for large storage tanks in downstream locations and huge sewers to </span><span data-contrast="auto">store</span><span data-contrast="auto"> the water, </span><span data-contrast="auto">discharging it to the receiving waters and thereby truly </span><span data-contrast="auto">‘</span><span data-contrast="auto">draining</span><span data-contrast="auto">’</span><span data-contrast="auto"> the catchment</span><span data-contrast="auto">. This means that the</span><span data-contrast="auto">re is </span><span data-contrast="auto">little opportunity</span><span data-contrast="auto">, if any,</span><span data-contrast="auto"> </span><span data-contrast="auto">for the water </span><span data-contrast="auto">to be reused. </span><span data-contrast="auto">Traditional systems are limited by volume capacity in receptors</span><span data-contrast="auto"> </span><span data-contrast="auto">with a risk for blockage due to debris</span><span data-contrast="auto">. There is also a</span><span data-contrast="auto"> possibility of </span><span data-contrast="auto">contamination of drinking </span><span data-contrast="auto">and recreational </span><span data-contrast="auto">water.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <p>On the other hand, SuDS addresses these issues by returning stormwater to natural water sources as soon as possible. By handling the water at the source instead of collecting and directing the influx of water to a separate location with limited capacity, SUDS makes use of various types of permeable layers – usually soil and vegetation – to ensure that the water is reused, reabsorbed at source or returned to nature.</p> <p><span data-contrast="auto">In addition, </span><span data-contrast="auto">S</span><span data-contrast="auto">u</span><span data-contrast="auto">DS</span><span data-contrast="auto"> brings about</span><span data-contrast="auto"> benefit</span><span data-contrast="auto">s such as</span><span data-contrast="auto"> </span><span data-contrast="auto">natural groundwater recharge, </span><span data-contrast="auto">reduction</span><span data-contrast="auto"> in runoff</span><span data-contrast="auto"> and</span><span data-contrast="auto"> </span><span data-contrast="auto">better water quality</span><span data-contrast="auto">.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <h3><b><span data-contrast="auto">How can water modelling help you integrate </span></b><b><span data-contrast="auto">SuDS</span></b><b><span data-contrast="auto"> in your construction?</span></b><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></h3> <p>Many national planning policies now encourage the use of SuDS. Government and regulators are increasingly looking out for evident use of SuDS in project proposals and are expecting this approach to be incorporated in new developments.</p> <p>Water modelling can help you incorporate SuDS into your development planning. Through water modelling, different scenarios and possible solutions can be analysed and evaluated before construction actually starts. Modelling is a good complement to traditional design because it provides an overview for the entire catchment – something that can be missed in detailed design.</p> <p><span data-contrast="auto">One t</span><span data-contrast="auto">ypical </span><span data-contrast="auto">example</span><span data-contrast="auto"> would be to </span><span data-contrast="auto">use mode</span><span data-contrast="auto">l</span><span data-contrast="auto">ling to </span><span data-contrast="auto">identify the</span><span data-contrast="auto"> </span><span data-contrast="auto">sub</span><span data-contrast="auto">–</span><span data-contrast="auto">catchments</span><span data-contrast="auto"> to </span><span data-contrast="auto">implemen</span><span data-contrast="auto">t</span><span data-contrast="auto"> </span><span data-contrast="auto">SuDS</span><span data-contrast="auto"> </span><span data-contrast="auto">for </span><span data-contrast="auto">the </span><span data-contrast="auto">best effects in further downstream catchments and receiving waters. Another </span><span data-contrast="auto">common</span><span data-contrast="auto"> </span><span data-contrast="auto">scenario</span><span data-contrast="auto"> is to use mode</span><span data-contrast="auto">l</span><span data-contrast="auto">ling to </span><span data-contrast="auto">improve water quality, by </span><span data-contrast="auto">pinpoint</span><span data-contrast="auto">ing</span><span data-contrast="auto"> </span><span data-contrast="auto">which</span><span data-contrast="auto"> catchments are the main </span><span data-contrast="auto">contributors</span><span data-contrast="auto"> of pollutants</span><span data-contrast="auto"> and </span><span data-contrast="auto">therefore should be </span><span data-contrast="auto">prioriti</span><span data-contrast="auto">s</span><span data-contrast="auto">e</span><span data-contrast="auto">d</span><span data-contrast="auto"> </span><span data-contrast="auto">for actions. </span><span data-contrast="auto">Finally,</span><span data-contrast="auto"> </span><span data-contrast="auto">modelling</span><span data-contrast="auto"> of new development areas</span><span data-contrast="auto"> </span><span data-contrast="auto">can </span><span data-contrast="auto">reveal possible limitations,</span><span data-contrast="auto"> </span><span data-contrast="auto">and </span><span data-contrast="auto">developers </span><span data-contrast="auto">will be able to </span><span data-contrast="auto">tap on </span><span data-contrast="auto">the modelling results </span><span data-contrast="auto">for future planning.</span><span data-contrast="auto"> </span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <h3><b><span data-contrast="auto">The benefits of fully </span></b><b><span data-contrast="auto">Integrated modelling </span></b><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></h3> <p>When considering the use of water modelling in your development projects, it is important to adopt a holistic and fully integrated modelling approach. You should be able to model the complete hydrological cycle of the catchment and drainage system, including the features of LID- and SuDS-specific solutions, both for water volumes and water quality.</p> <p><span data-contrast="auto">Ideally, your</span><span data-contrast="auto"> water modelling software should</span><span data-contrast="auto"> feature advanced and complete options for hydrological and hydraulic model</span><span data-contrast="auto">l</span><span data-contrast="auto">ing</span><span data-contrast="auto">,</span><span data-contrast="auto"> together with full water quality mode</span><span data-contrast="auto">l</span><span data-contrast="auto">ling of dissolved and particle pollutants, sediment transport and biological processes in the drainage system. </span><span data-contrast="auto">A</span><span data-contrast="auto"> software like </span><a href="https://www.mikepoweredbydhi.com/products/mike-urban-plus" target="_blank" rel="noopener"><span data-contrast="none">MIKE+</span></a><span data-contrast="auto"> </span><span data-contrast="auto">meets these objectives and can</span><span data-contrast="auto"> easily be integrated with </span><span data-contrast="auto">other </span><span data-contrast="auto">mode</span><span data-contrast="auto">l</span><span data-contrast="auto">ling software </span><span data-contrast="auto">within the </span><a href="https://www.mikepoweredbydhi.com/" target="_blank" rel="noopener"><span data-contrast="none">MIKE family</span></a><span data-contrast="auto"> to </span><span data-contrast="auto">represent the full hydrological cycle</span><span data-contrast="auto">,</span><span data-contrast="auto"> including the groundwater system and receiving waters </span><span data-contrast="auto">(</span><span data-contrast="auto">both fresh and saltwater</span><span data-contrast="auto">)</span><span data-contrast="auto">. This gives the user the ability to evaluate the effects of their existing and potentially new </span><span data-contrast="auto">drainage</span><span data-contrast="auto"> system not only within the catchment but also in surroundin</span><span data-contrast="auto">g</span><span data-contrast="auto"> boundaries</span><span data-contrast="auto">.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <h3><b><span data-contrast="auto">More about managing stormwater in cities</span></b><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></h3> <p><span data-contrast="auto">Efficient management </span><span data-contrast="auto">of u</span><span data-contrast="auto">rban stormwater runoff is </span><span data-contrast="auto">a major objective of </span><span data-contrast="auto">cities worldwide. </span><span data-contrast="auto">Building </span><span data-contrast="auto">long-term </span><span data-contrast="auto">sustainable </span><span data-contrast="auto">drainage solutions involves taking social and environmental factors into consideration</span><span data-contrast="auto"> – and it is always better to start early</span><span data-contrast="auto"> for maximum benefits.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> <p><span data-contrast="none">Contact us to explore </span><span data-contrast="none">your options in sustainable stormwater management</span><span data-contrast="none"> </span><span data-contrast="auto">and </span><span data-contrast="auto">see which of our solutions work best for you</span><span data-contrast="auto">.</span><span data-ccp-props="{"201341983":0,"335559739":160,"335559740":259}"> </span></p> </div> <div class="post-tags"><a href="https://blog.dhigroup.com/tag/rainfall/" rel="tag">rainfall</a><a href="https://blog.dhigroup.com/tag/stormwater/" rel="tag">stormwater</a><a href="https://blog.dhigroup.com/tag/urban-flooding/" rel="tag">urban flooding</a><a href="https://blog.dhigroup.com/tag/urban-water/" rel="tag">urban water</a><a href="https://blog.dhigroup.com/tag/urban-water-modelling/" rel="tag">urban water modelling</a></div> <div class="post-author"> <a class="avatar" href="https://blog.dhigroup.com/author/cecilia-wennberg/"> <img data-del="avatar" src='https://blog.dhigroup.com/wp-content/uploads/2019/12/CEW-150x150.jpg' class='avatar pp-user-avatar avatar-100 photo ' height='100' width='100'/> </a> <h4 class="title"><a href="https://blog.dhigroup.com/author/cecilia-wennberg/">Cecilia Wennberg, Executive Vice President, Water in Cities</a></h4> <div class="post-author-description"> <p>With 30 years of experience working in the urban water and environmental area focusing on engineering, innovation, technology, sales, business development and management, Cecilia promotes an integrated approach to urban water management. 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