New Milan metro-line M4. From infrastructural project to design scenario enabling urban resilience

Resilience is an attitude of a system to cope with shock or stress and to guarantee its continuity. Referring to a city or a neighborhood, a resilient system is an urban body that can sustainably transform solving chronic problems such as traffic, air, and noise pollution. The paper discusses the Masterplan proposal for Milan aimed to convert a simple infrastructural project (M4 metro line) into a well-organized urban space design improving urban resilience. Urban design priorities were a high visual appeal, easy and simple maintenance, high ecological function, cultural heritage protection, and sustainable mobility. Milan’s Green-blue backbone is the opportunity to realize safer and resilient public spaces and sustainable mobility, looking at the time-space design of the public transport and ecological network.