Reti verdi e blu per la rigenerazione delle periferie pubbliche

The intensification of physical-morphological, socioeconomic and ecological-environmental questions, due to the fragile condition that characterizes the marginal areas of contemporary European cities, has led the disciplinary debate and experimentation towards urban regeneration strategies. That strategy aims at the enhancement of urban settings, the development of the social and economic fabric, the defragmentation of ecological-environmental systems. The debate and experimentation identify, as a structural component of a sustainable and resilient city, the system of green and blue networks, which is primarily the framework for mitigation and adaptation to environmental risks, but also the framework to build the public city and the value of common goods for the community. The regeneration strategy must take a unified, integrated and interscalare approach which considers the contemporary city in its different settlement’s forms – discontinuous and porous – also involving the large, collective, degraded and obsolete open spaces, which characterize particularly the public peripheries. These require innovative and more effective strategies, tools and mechanisms that, through the construction of tangible and intangible networks, through plans, programs and projects, allow to overcome their conditions of marginality, degradation and isolation. The paper pursues the objective of deepening strategies and tools for the regeneration of these contexts, in order to provide a contribution to the debate on the contrast of the processes of socioeconomic and physical-morphological polarization, and environmental fragmentation, supporting reflection with the illustration of international best practices.