High levels of land sealing and building densities exacerbate the risks of pluvial flooding in cities and the formation of summer heat islands. In addition, important urban vegetation is stressed and harmed by increasing periods of drought. The joint project AMAREX investigates the possibilities of adapting stormwater management to the increasing extreme events of heavy rain, drought and heat by means of blue-green infrastructures and LID measures. A central point is the development of a user-friendly and descriptive web tool, which can be used by municipal stakeholders as an information, communication and decision-support tool.
Therefore first stakeholder workshops were held on October 6 in Berlin and on October 12 in Cologne. In addition to the project consortium, municipal representatives of administrative authorities, planning offices and property owners were invited to contribute their knowledge about application, approval and information procurement in corresponding thematic groups. It was jointly discussed which functions and benefits the individual municipal stakeholders hoped to gain from the AMAREX web tool. Accordingly, the objective should be a GIS-based tool able to show the potential of stormwater management, the possible uses of LID facilities and the effectiveness of individual measures. Besides this, the web tool should be compatible with existing specialized applications. Depending on the need for use and previous knowledge, the tool should be adapted to specific target groups for the users and also be available as a multi-user system. A detailed evaluation of the results and a stakeholder survey based on this will now highlight further requirements and sharpen the application focus for the project so that a prototype of the web tool can be presented at the next workshops at the end of 2023.