GIS method applied to estimate the cost of dry-built stone retaining masonry walls in application of the Tuscany Rural Development Plan 2007-2013

In compliance with the European Commission Reg.[EC] n°1782/03 articles 4 and 5, aiming at promoting sustainable use of agricultural land, the Tuscany Rural Development Plan [RDP] 2007-2013, includes the rehabilitation of countryside and quality of life in rural areas. The rehabilitation and preservation of retaining stone masonry walls [RSMW] for hydro-geological protection and preservation of local tradition, is one among the active implementations in response to the RDP recommendations. However, rehabilitation costs are very high and difficult to be determined. This paper aims at testing a methodology that allows generating, through Geographic Information System [GIS], a raster map geo-referencing RSMW in order to guide decision makers for a correct allocation of funds. A case study in the area of Pistoia in the region of Tuscany will allow testing the method and RSMW will be classified according to restoration cost.