La misura delle condizioni di intervisibilità. Una valutazione a supporto del progetto delle trasformazioni del paesaggio toscano

Abstract

The paper presents two maps that exploit viewshed analysis: the first assesses the region absolute theoretical intervisibility; the second assesses the weighted viewshed of the most important scenic place. Both maps are part of Landscape Plan of the Region of Tuscany, which has been recently adopted. The evaluation of absolute theoretical intervisibility is obtained through the integration of viewshed of 117100 points distributed throughout the region in a regular grid; this integration highlights the Tuscan scenery great persistent horizons. The evaluation of weighted intervisibility assesses vice versa the probability of each point of the regional space to enter, with a significant role, into a scenery of an observer; this second processing, significantly more complex, is based on Analytic Hierarchy Process (AHP).