cimitero monumentale porta nuova \ garibaldi porta volta porta nuova piazza della repubblica arena civica castello sforzesco foro bonaparte piazza duomo stazione centrale teatro alla scala pinacoteca di brera galleria v.emanuele II Spanish Walls 01_threshold 02_measure 03_rhytm 04_inastructure 05_web of services 06_development (?) Traces Centripetal City Paths Project Axes Axis of Continuity - Concept Axis of Fragmentation - Concept Centrifugal City Francesco Ronchi - 736540 IDENTITY To act in a metropolitan city, as can be seen Milan with his own hinterland, which through the ages has always played a major role and that it was also the subject of radical changes in the political, economic, administrative and social field which inevitably impacted on the urban sphere, needs a level of investigation and re- flection on the urban scale before architectu- ral one, especially if the project represents a key point in the urban mesh. The plot is loca- ted along the ancient Spanish Walls, whose construction began immediately aſter the me- dieval period, and was therefore by a historical point of view an area strongly marked as a th- reshold, an urban entrance to the city. Nowa- days fully divested in favor of the realization of a first ring road, is embedded in the radial tissue of Milan as a second line of demarcation between the first ring of walls and the road bypass.Comparing a reconstruction of the original city wall with what we consider the trace (well recognized) that this has leſt within the urban mesh of Milan, it is clear as it has always played a dual role,a fence om the inside to which the development is done with patterns typical of the old town and, om the outside firstly as a threshold and then as a cor- nerstone of modern urban developement. The intent to search for a new genius loci arises om the behavior of the first round of the walls. As we can see before the total demoli- tion, these, together with a few main roads, have regulated urban development, providing with rhythms and measures the mesh, while aſter the demolition this function has failed according to a shiſt of the main axes in behalf first of axes inastructure (roads, rail, subway) and recently of the axes of services. Obvious fact is the tendency to post-modern patterns of development, acting within the dense and layered tissue, creating gaps in which place these services to create new pola- rities on which set a new urban mesh, that ho- wever oſten characterize themselves as empty and self-referred, massified, globalized and gentrificated. These new polarities also relates to a centrifugal model of the city, which aims at a sprawled urbanism, in contrast with the centripetal model of the historic city. The project area is now like “no man's land” betwe- en two strong axialities, a historical one that links Cimitero Monumentale to the historical center and the cathedral through Porta Tena- glia and the other one that intercepts the Porta Nuova area tracing out axis that unites many of the interventions for EXPO2015 (City Life, Portello, Cascina Merlata,Expo Area ..) in NW direction; hence the aim of redefining a new border and an identity now lost. "Today , the attributes that made threshold in- termediary and passage have been removed, and so threshold is a distinctive motive betwe- en interior and exterior, between confined re- gions and broad extensions, between closed and open places. Here it returns as a crest of form, and also line of force, a mark of con- densations and a consolidated ‘nervous system’ which render it a ‘place of remarkable places’. In the conplex dwelling, threshold op- poses the crossing of undifferentiated space, which is spread out and undecipherable, in- terposing surroundings and accumulations which can be recognised on a scale of charac- teristic and intersecting relations. If the an- cient accepted meaning is reversed, then the very dividing elements will become connective so as to reinforce the sustaining ameworks of a larger transformation. An analogy is postu- lated between ‘threshold’ an ‘outline’, both of which are borderline states of the form that demarcates varied fields, critical situations of heterogeneous regions,where the condensa- tions ossifying the dwelling hold out against the disintegration of the dwellings restoring a matrix to these. The modern avant-garde - antagonist of the exhaustive urban grids - in- dicates this phenomenon when models of urban condensation are proposed: the tecto- nic threshold becomes a local specification of entire urban systems and it is opened up to the principle of ‘sequence’. This sequence is not a succession of multiple doorways, but rather a four-dimensional relation of the settlement agments in the contemporality of space-ti- me. The sequential redefining of threshold draws out the fiſth dimension, the memory di- mension, which today is the critical line resi- stance against ‘media’ superimposition and the resulting ‘cultural’ deletions."(S.Crotti) Have been identified two main design axis with profoundly different features; an axis of penetration in SE direction, the axis of continuity, which opens a rhythmic succes- sion of orderly open spaces, and an axis of flowing EW, axis of the agmentation, that following the traces of the ancient Spanish walls, it inherits their disruption.