ITU‐T's Technical Reports and Specifications 529 Figure 17 – Screenshot of the INFUX interface RainGain The RainGain project is a transnational project aimed at improving urban flood prediction. Since radars have the advantage of being light, manageable, and more affordable to local water authorities, they were chosen as the medium of data collection. By collecting detailed rainfall data at an urban scale from weather radars, the project seeks to provide reliable information to city water managers to develop reliable urban water strategies, thus contributing to make cities more resilient to local rainfall‐induced floods. Source: DLFT Urban Water (2014). Figure 18 – RainGain project location The project investigates four different types of radar techniques in four pilot European cities (i.e. Leuven, London, Paris and Rotterdam) (Figure 18). The project involves the installation of new polarimetric X‐band radars in Rotterdam and Paris, enhancing previously acquired X‐band radar, as well as the acquisition of four additional rain gauges in Leuven, and upgraded C‐band radar for testing and implementation of super resolution protocol in Greater London. The following areas will be investigated: Early warning systems based on fine‐scale flood prediction, based on London's project experience. Real‐time operational strategies of storage basins and pumping stations to maximize rainwater storage, based on the project's experience in Paris and Leuven's. Upgrading the capacity of urban water systems, based on Rotterdam's experience. It is envisioned that, through the implementation of this initiative, city water managers will be better equipped to manage urban flooding by being able to make flood forecasts at the street level, in real time. For more information please visit: http://www.raingain.eu/en/four‐cities‐gain‐rain