Geosystems Hellas (GSH) is responsible for a variety of different technical tasks, as well as for leading an integral work package and being the supportive partner of two of the Pilot European Cities, Piraeus, and Ixelles. GSH has collected, evaluated, and analyzed in a GIS environment a large variety of diverse and multidimensional urban context data, aiming to provide up-to-date information on the current state of the pilot cities. The collected and integrated datasets are related to the environmental, land use, socioeconomic and transportation aspects of the urban environment. 

Furthermore, GSH based on its long-term experience in developing and maintaining WebGIS applications and geospatial platforms, leads the development efforts of a novel urban planning Decision Support System (DSS) based on a comprehensive and holistic risk assessment methodology approach developed under HARMONIA. The urban planning DSS is functionalized to provide urban planning recommendations to policy-makers founded upon a multiple hazard risk assessment methodology to eventually enable the transition to more resilient and sustainable urban environments. In addition, the urban planning DSS will be offered as a web-based application with a user-friendly interface leveraging cutting-edge technologies, able to efficiently handle and visualize multidimensional (4D) geospatial information. 

The overall methodology and the capabilities of the DSS will be applied and demonstrated in all of the HARMONIA Pilot Cities.