Analysis of seismic vulnerability for urban centers

The current scientific community has been interrogated about the need for a single pre-earthquake methodology for the analysis and evaluation of the seismic vulnerability finding it necessary to define a clear and simplified method encoded at a European level. Based on this issue, the present paper shows the first results of a study that has the objective to define, for the urban center, an expeditious method for the analysis and evaluation of vulnerability at aggregate scale. It should overcome the detected criticalities in the two most widespread methods: the statistical method and the analytical method. Over to define the method of analysis and evaluation of the seismic vulnerability of the urban centers new compilation forms, for structural units (SeiV-US) and aggregates (SeiV-AS) and their manual of compilation have been defined. The new forms have been verified on the test site (Ortigia – Syracuse - Italy) in order to better define the identified “list of indicators of vulnerability”. These indicators of vulnerability, contained in the new forms, refer to the entries of the CLE, GNDT and AeDES forms and to their manuals.