The permanence of the design in the transformation of the urban limit. Messina: the ring road reinterprets the walls

The goal of the paper is to reconstruct a framework of experiences on the concept of urban limit and on the theme of the transformation of the city walls into the road, and to include in this framework the experience of Messina, a particular case of transformation of the layout of the walls to two speeds: one physiological, as happened in other situations, and the other accelerated by the destruction following the 1908 earthquake and the consequent reconstruction work