Management of Urban Stormwater at Block-Level (MUST-B): A New Approach for Potential Analysis of Decentralized Stormwater Management Systems

Abstract

Cities worldwide are facing problems to mitigate the impact of urban stormwater runoff caused by the increasing occurrence of heavy rainfall events and urban re-densification. This study presents a new approach for estimating the potential of the Management of Urban STormwater at Block-level (MUST-B) by decentralized blue-green infrastructures here called low-impact developments (LIDs) for already existing urban environments. The MUST-B method was applied to a study area in the northern part of the City of Leipzig, Germany. The Study areas was divided into blocks smallest functional units and considering two different soil permeability and three different rainfall events, seven scenarios have been developed: current situation, surface infiltration, swale infiltration, trench infiltration, trough-trench infiltration, and three different combinations of extensive roof greening, trough-trench infiltration, and shaft infiltration. The LIDs have been simulated and their maximum retention/infiltration potential and the required area have been estimated together with a cost calculation. The results showed that even stormwater of a 100 year rainfall event can be fully retained and infiltrated within the blocks on a soil with low permeability (kf = 10−6 m/s). The cost and the required area for the LIDs differed depending on the scenario and responded to the soil permeability and rainfall events. It is shown that the MUST-B method allows a simple down- and up-scaling process for different urban settings and facilitates decision making for implementing decentralized blue-green-infrastructure that retain, store, and infiltrate stormwater at block level.

Urban stormwater management for sustainable and resilient measures and practices: a review

“…Also, appraisal of LID performance for stormwater control can be done using SWMM with an interdisciplinary criterion (Zhang et al 2020a(Zhang et al , 2020b. Further, the evaluation of stormwater management at block level in urban areas with LIDs may be performed (Khurelbaatar et al 2021). However, the application of various LID and BMPs for holistic urban stormwater management needs to be studied in much detail with advanced and novel approaches such as Internet of Things (IoT), Artificial Intelligence (AI) and Machine Learning (ML) for real time monitoring and control of water quantity and water quality to enhance stormwater system performance concerning sustainable and resilient measures and practices.…”

“…Sustainable Urban Drainage Systems (Fryd et al 2010;Zhou 2014;Ellis & Lundy 2016;Lim & Lu 2016;Casal-Campos et al 2018;Arahuetes and Cantos 2019;Altobelli et al 2020;Kändler et al 2020;Lin et al 2020;Kwon et al 2020;Hager et al 2021), Low Impact Development and Best Management Practices (Strecker et al 2001;Dietz 2007;Motsinger et al 2016;Mani et al 2019;Nowogonśki 2020;Men et al 2020;Song et al 2020;Zhang et al 2020aZhang et al , 2020bKhurelbaatar et al 2021), Water Sensitive Urban Design (Lariyah et al 2011;Beecham & Razzaghmanesh 2015;Siekmann & Siekmann 2015;Marino et al 2018;Ahmed et al 2019) and Sponge City Programmes (Wang et al 2018) are some of the stormwater management schemes which are being adopted in different countries.…”

Integrated Planning and Implementation of a Blue-Green Architecture Project by Applying a Design-Build Teaching Approach

“…This point will not be modified in the design strategy for BGA, but some aspects will be added that should be applied within this iteration (Figure 16). The collection of water quantities and the calculation of required storage for larger projects should be completed with the help of simulations [49,50] (pp. 56-61).…”

Assessment of Blue and Green Infrastructure Solutions in Shaping Urban Public Spaces—Spatial and Functional, Environmental, and Social Aspects

“…In view of growing environmental threats, new solutions are sought to support sustainable development. Many leading practices are focused on managing stormwater decentrally to relieve pressure on centralized infrastructure [14,15] and to restore the natural water balance [16].…”