Giovanna Ferluga

Clustering Analysis in a Complex Real Estate Market: The Case of Ortigia (Italy)

Ortigia, the historic center of Syracuse, is a complex urban entity characterized by high outer homogeneity and inner heterogeneity. The evolution of its real estate market during the last decade is somehow related to the global property market one. In addition its events are connected with the evolution of the exploiting policies still ongoing. The critical observations of its features aim at providing tools able to support the decisions about subsides and local property taxes. This study continues the observations we have carried out for five years, this time involving clustering analysis, a data mining technique able to recognize different submarkets, and suitable to make the valuation pattern fit to the different market areas. For each of the latter significant characteristics have been recognized with reference to the “monetary declination” of these particular capital assets.

Planning Seismic Damage Prevention in the Old Tows Value and Evaluation Matters

Only recently seismic prevention has come up in urban planning and considered as a significant part of the social capital of the urban heritage. Among the planning tools for reducing the vulnerability of urban fabrics, the Emergency Limit Condition (ELC) defines the fields which require widespread strengthening interventions in the buildings involved in resilient town units. The extent and intensity of such interventions can be graded so as to find an optimal ELC measure, taking the needs of the urban and human capital into account. In case of the old town centre of Ragusa, a model for analysing the seismic vulnerability of the built-up areas has been integrated with a model for a cost-revenue estimation in order to identify the conditions of the ELC dimensioning and to develop the relevant incentive system.