The project has delivered decision support tools addressing stakeholders' needs in two main scenarios, rain water management addressing urban planners, local/national authorities and citizens, and smart supply water management addressing water utilities, local/national authorities and citizens. The offered tools incorporate innovative features in terms of data collection, analytics and visualization.
The prototype delivered for Ljubljana case study uses the Urban District Sub-Catchment (UDSC) as an urban area unit that encompasses critical properties of the urban area for modelling, monitoring and visualizing the critical variables. In this context, the Urban District Sub-Catchment (UDSC) represents in the prototype a basic (static) unit for sensor data collection, modelling of urban water runoff, modelling of (Nature-Based Solutions) NBS locations as well as the basic modelling unit for visualization. The basic parameters that are calculated and displayed by the tool are i) current/future land use; ii) rain data; iii) soil type and climate changes; and iv) rain infiltration/runoff. For each pillar, selected parameters are calculated and visualized through appropriate tools (treemap diagrams, plots etc.) to support rain water data analysis from decision makers.
The prototype delivered for Skiathos case study constitutes a smart tool for urban water supply management, essential for optimizing the WDN operation according to the IWA guidelines, especially for supply systems that depict intense seasonality and spatial variability (regarding altitude, or urban land uses). The prototype incorporates machine learning algorithms and data collection tools to allow real-time data monitoring and processing. Of particular interest, in terms of the techniques used in W4C, is the visualisation of the IWA water balance standard, used in the DEYASK prototype.
Furthermore, the close collaboration of researchers in this multi-disciplinary field contributes in stronger industry-academia collaborations in the area of water management. At international level, Water4Cities contributed in enhancing transfer of knowledge between EU and third country research organizations such as IBM, settled in USA.