The hydro-geological planning was fully implemented in early 2000. It has also represented a turning point in the use of land aimed at reducing the hydro-geological risks and not generate more. In light of this experience, the first initiative of the Minister of the Environment concerning coastal protection, which took place in 2006 by the Directorate- General for Land Protection, set the foundation for the definition of the general rules necessary for sector planning. From this, the preliminary results have been used to examine the state of instability and the potential risks of the Italian coasts as well as to gather the initial experiences gained directly by the regions and basin authorities.
In 2006, the first data processing made it possible to get a general overview of the coastal erosion problem on a national scale. It quantified the macro-data relating to changes in the coastline, to the strokes with a potential risk of erosion and to major coastal physiographic units.
The new 2016 national level data processing, updated on March 2017, performed with GIS techniques and by comparing the 1960 shore lines (derived from 1: 25.000 IGMI maps) and the 1994 and 2012 ones, (taken from orthophotos present on the National Geo Portal), have provided new elements of analysis of the low coast variation phenomena. As a matter of facts, the 1994 – 2012 period is significant, since it represents the time phase corresponding to the first regulations on sediment management along the main waterways and the first intervention of artificial nourishment along some stretches of Italian beaches. The processing covered only mainland Italy, Sicily and Sardinia, all the smaller islands are excluded.