Towards resilient cities: stormwater runoff mitigation strategies

Mediterranean regions and cities face important challenges related to water management, including storage, discharge, quality and periodic stress. To address these challenges, it is evident that water must become an integral part of urban planning policies and their implementation. The co-operation project TRIG eau (Trans-boundary, Resilience, Innovation and Governance for hydrogeological risk reduction) aims to strengthen the resilience of the French and Italian territories exposed to the hydrogeological and hydraulic risk by promoting the implementation of water management strategies in the territorial planning both at a regional and local scale. The objective of the present paper is to assess the impact of Low Impact Development (LID) solutions in order to mitigate the stormwater management problems (both quality and quantity aspects) and thus reducing the hydraulic failure of stormwater drainage systems. The three Italian case studies are examined located respectively in Municipality of Solarussa (Sardinia), in the Municipality of Campo dlel’Elba (Isola d’Elba, Tuscany) and in the Municipality of Camogli (Liguria).