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Ruangpan, L. (author), Vojinovic, Zoran (author), Plavšić, Jasna (author), Curran, Alex (author), Rosic, Nikola (author), Pudar, Ranko (author), Savic, Dragan (author), Brdjanovic, Damir (author)Flooding is expected to increase due to climate change, urbanisation, and land use change. To address this issue, Nature-Based Solutions (NBSs) are often adopted as innovative and sustainable flood risk management methods. Besides the flood risk reduction benefits, NBSs offer co-benefits for the environment and society. However, these co...journal article 2024
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Yuan, Jiao (author), Zheng, Feifei (author), Duan, Huan Feng (author), Deng, Zhengzhi (author), Kapelan, Z. (author), Savic, Dragan (author), Shao, Tan (author), Huang, Wei Min (author), Zhao, Tongtiegang (author), Chen, Xiaohong (author)Low-lying coastal cities are vulnerable to compound floods caused by many factors including river flows, tides and local rainfall. Many previous studies focus on the impacts of rainfall and tidal levels (two driving factors) on estuaries or regions near the main single river, while research about the three influencing factors on the floods...journal article 2024
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Zheng, Zixuan (author), Zheng, Feifei (author), Qi, Zhexian (author), Wen, Jinhua (author), Chen, Junyi (author), Duan, Huan Feng (author), Savic, Dragan (author), Kapelan, Z. (author)Isolation valve closures (IVCs) can effectively assist pipe maintenance and management in water distribution systems (WDSs), but they inevitably cause secondary impacts on the WDS’s performance. Previous studies have mainly focused on how to optimally operate or locate valves, but few efforts have been made on investigating the secondary impacts...journal article 2024
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Sitzenfrei, Robert (author), Qiu, Mengning (author), Ostfeld, Avi (author), Savic, Dragan (author), Kapelan, Z. (author)Water distribution networks (WDNs) are a vital component of urban water infrastructure. They transport water from production sites (sources) to spatially distributed consumers (sinks). Multiobjective optimization procedures are often used to minimize construction costs and at the same time maximize the resilience of such systems, which is...conference paper 2023
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Zheng, Feifei (author), Yin, Hang (author), Ma, Yiyi (author), Duan, Huan Feng (author), Gupta, Hoshin (author), Savic, Dragan (author), Kapelan, Z. (author)Under global climate change, urban flooding occurs frequently, leading to huge economic losses and human casualties. Extreme rainfall is one of the direct and key causes of urban flooding, and accurate rainfall estimates at high spatiotemporal resolution are of great significance for real-time urban flood forecasting. Using existing rainfall...journal article 2023
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Zehnder, Calvin (author), Béen, Frederic (author), Vojinovic, Zoran (author), Savic, Dragan (author), Torres, Arlex Sanchez (author), Mark, Ole (author), Zlatanovic, L. (author), Abebe, Y.A. (author)Wastewater-based epidemiology (WBE) has been proven to be a useful tool in monitoring public health-related issues such as drug use, and disease. By sampling wastewater and applying WBE methods, wastewater-detectable pathogens such as viruses can be cheaply and effectively monitored, tracking people who might be missed or under-represented in...journal article 2023
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Fang, Jiaxing (author), Dai, Zihan (author), Li, Xiaoming (author), van der Hoek, J.P. (author), Savić, Dragan (author), Medema, G.J. (author), van der Meer, Walter (author), Liu, G. (author)Biofilm detachment contributes to water quality deterioration. However, the contributions of biofilm detachment from different pipes have not been quantified or compared. Following the introduction of partial reverse osmosis (RO) in drinking water production, this study analyzed particles at customers’ ends and tracked their origins to water...journal article 2023
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Huang, Yuan (author), Zhang, Jiangjiang (author), Zheng, Feifei (author), Jia, Yueyi (author), Kapelan, Z. (author), Savić, Dragan (author)Urban drainage models (UDMs) are often used to manage urban flooding. However, these models generally involve many parameters to represent the underlying complex hydrodynamic processes. This results in significant challenges to achieving effective and robust model calibration especially with frequently limited observations, leading to...journal article 2022
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Yin, Hang (author), Zheng, Feifei (author), Duan, Huan-Feng (author), Savić, Dragan (author), Kapelan, Z. (author)Urban flooding is a major issue worldwide, causing huge economic losses and serious threats to public safety. One promising way to mitigate its impacts is to develop a real-time flood risk management system; however, building such a system is often challenging due to the lack of high spatiotemporal rainfall data. While some approaches (i.e.,...journal article 2022
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Ji, Yiran (author), Zheng, Feifei (author), Du, Jiawen (author), Huang, Yuan (author), Bi, Weiwei (author), Duan, Huan Feng (author), Savic, Dragan (author), Kapelan, Z. (author)Most of the contamination source localization methods for water distribution systems (WDSs) assume the availability of accurate water quality models and multi-parameter online sensors, which are often out of reach of many water utilities. To address this, a novel manual grab-sampling method (MGSM) is developed to effectively and efficiently...journal article 2022
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Zheng, Zixuan (author), Zheng, Feifei (author), Bi, Weiwei (author), Du, Jiawen (author), Duan, Huan-Feng (author), Savić, Dragan (author), Kapelan, Z. (author)An early contamination warning system with deployed water quality sensors is often used to enhance the safety of a water distribution system (WDS). While algorithms have been developed to select an optimal water quality sensor placement strategy (WQSPS) for WDSs, many of them do not account for the influences caused by future uncertainties,...journal article 2022
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Zhang, Qingzhou (author), Zheng, Feifei (author), Jia, Yueyi (author), Savic, Dragan (author), Kapelan, Z. (author)Real-time hydraulic modelling can be used to address a wide range of issues in a foul sewer system and hence can help improve its daily operation and maintenance. However, the current bottleneck within real-time FSS modelling is the lack of spatio-temporal inflow data. To address the problem, this paper proposes a new method to develop real...journal article 2021
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Jia, Yueyi (author), Zheng, Feifei (author), Zhang, Qingzhou (author), Duan, Huan Feng (author), Savic, Dragan (author), Kapelan, Z. (author)Hydraulic modeling of a foul sewer system (FSS) enables a better understanding of the behavior of the system and its effective management. However, there is generally a lack of sufficient field measurement data for FSS model development due to the low number of in-situ sensors for data collection. To this end, this study proposes a new method...journal article 2021
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Wagener, Thorsten (author), Savic, Dragan (author), Butler, David (author), Ahmadian, Reza (author), Arnot, Tom (author), Dawes, Jonathan (author), Djordjevic, Slobodan (author), Falconer, Roger (author), Kapelan, Z. (author)The Water Informatics in Science and Engineering Centre for Doctoral Training (WISE CDT) offers a postgraduate programme that fosters enhanced levels of innovation and collaboration by training a cohort of engineers and scientists at the boundary of water informatics, science and engineering. The WISE CDT was established in 2014 with funding...journal article 2021
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Huang, Yuan (author), Zheng, Feifei (author), Kapelan, Z. (author), Savić, Dragan (author), Duan, Huan-Feng (author)This paper proposes a multistage method for burst leak localization through valve operations (VOs) and smart demand metering in district meter areas (DMAs) of water distribution systems (WDSs). Each stage includes partitioning of the DMA into two subregions using VOs and identification of potentially leaking pipes within the subregions...journal article 2020
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Sitzenfrei, Robert (author), Wang, Qi (author), Kapelan, Z. (author), Savić, Dragan (author)The optimization of water networks supports the decision-making process by identifying the optimal trade-off between costs and performance (e.g., resilience and leakage). A major challenge in the domain of water distribution systems (WDSs) is the network (re)design. While the complex nature of WDS has already been explored with complex...journal article 2020
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Zhang, Qingzhou (author), Zheng, Feifei (author), Kapelan, Z. (author), Savic, Dragan (author), He, Guilin (author), Ma, Yiyi (author)Water quality sensors are often spatially distributed in water distribution systems (WDSs) to detect contamination events and monitor quality parameters (e.g., chlorine residual levels), thereby ensuring safety of a WDS. The performance of a water quality sensor placement strategy (WQSPS) is not only affected by sensor spatial deployment that...journal article 2020
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Sophocleous, Sophocles (author), Savić, Dragan (author), Kapelan, Z. (author)This research article presents a model-based framework for detecting and localizing leaks in water distribution networks (WDNs). The framework uses optimization and systematic search space reduction. The method employs two stages: (1) the search space reduction (SSR) stage and (2) the leakage detection and localization stage (LDL). During SSR...journal article 2019
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Sayers, William (author), Savic, Dragan (author), Kapelan, Z. (author)Optimisation algorithms could potentially provide extremely valuable guidance towards improved intervention strategies and/or designs for water systems. The application of these algorithms in this domain has historically been hindered by the extreme computational cost of performing hydraulic modelling of water systems. This is because running...journal article 2019
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Zheng, Feifei (author), Tao, Ruoling (author), Maier, Holger R. (author), See, Linda (author), Savic, Dragan (author), Zhang, Tuqiao (author), Chen, Qiuwen (author), Assumpção, Thaine H. (author), Solomatine, D.P. (author)Data are essential in all areas of geophysics. They are used to better understand and manage systems, either directly or via models. Given the complexity and spatiotemporal variability of geophysical systems (e.g., precipitation), a lack of sufficient data is a perennial problem, which is exacerbated by various drivers, such as climate change...review 2019