STRUCTURAL PLAN

In the second part of the analysis, previously found data were selected on the basis of their proximity to watercourses. In this way, it was possible to create a parallelism between the different watercourses and to observe that certain elements, such as the presence of industrial and tertiary areas and the consequent increase in abandoned areas, are recurrent. Moreover, in this map, with respect to the territorial scale, a narrower area has been highlighted, ranging from the strip of the PLIS in the north of the province of Milan to the urban strip with an east-west trend that departs from the metropolitan area south of Milan.

fortresses are all those spaces destined for the exclusive circle of its inhabitants. These areas, often characterised by a repetitive pattern of apartment blocks or semi-detached houses, are inaccessible and isolated from their context.

Only25%ofthebanksofthestretch of the Olona examined for this analysis are wooded. Riparian vegetation is of vital importance for the self-purification processes that any watercourse normally undergoes and to ensure the survival of the species that inhabit