In the Strategic Action Plan provided for the Florence City agglomeration, quiet areas have been studied and relative actions have been planned according to a Participatory Design approach.
The idea moves from the multi-sensorial conception of landscape and its perception and define a process that attempts to actively involve all the real or potential stakeholders. A number of Florentine squares, green spaces and other urban open areas have been chosen for testing the methodology. In this paper the authors describe the Piazza della Vittoria case study, where not only measurements of the overall effects of noise, in terms of sound level and frequency, but also levels of perceived annoyance are considered. So the quantitative estimate of the environmental benefits can be expressed both as the increase in the number of residents joining a quiet area and as increased level of their comfort. In the Piazza four different sub-areas have been investigated applying to them a procedure of participatory design that give evidence to the sense of membership of the “square-people” and of the residents.
Sounds and soundscapes are important elements of this analysis and of the consequent project of requalification. The open space architecture and the street furniture are chosen according to the functional and comfort aspects as highlighted by the users and the sound design of the four different square scenarios plays a crucial role. In this paper the adopted methodology and some sketch of the case study project are shown.

Autori: Luzzi, Natale