The paper illustrates the results of a research mandated by the regional government of Lombardia, Italy, to identify criteria to decide in what situations relocation from areas subject to high levels of hydrogeological hazards is a viable preventive strategy. Until now most of the laws to prevent risks have imposed limitations to building and development in hazardous areas, while very rarely they have focused on already existing settlements. This time, the Region is thinking of a law to promote preventive relocation in the most critical situations, where structural measures have failed a number of times and losses are frequent and large. Four set of criteria have been proposed, shaped according to different geographical scales and to different demands, recognizing that relocation is a rather extreme solution, that must be carefully evaluated and proposed to interested parts and citizens. Those criteria have been applied to assess some specific cases in the Lombardia Region and to identify potential candidates for relocation in the whole Region, by querying a complex database that was prepared integrating layers representing hydrogeological hazards on one side and exposed settlements on the other.

Is relocation a good answer to prevent risk? Criteria to help decision makers choose candidates for relocation in areas exposed to high hydrogeological hazards

MENONI, SCIRA;
2008-01-01

Abstract

The paper illustrates the results of a research mandated by the regional government of Lombardia, Italy, to identify criteria to decide in what situations relocation from areas subject to high levels of hydrogeological hazards is a viable preventive strategy. Until now most of the laws to prevent risks have imposed limitations to building and development in hazardous areas, while very rarely they have focused on already existing settlements. This time, the Region is thinking of a law to promote preventive relocation in the most critical situations, where structural measures have failed a number of times and losses are frequent and large. Four set of criteria have been proposed, shaped according to different geographical scales and to different demands, recognizing that relocation is a rather extreme solution, that must be carefully evaluated and proposed to interested parts and citizens. Those criteria have been applied to assess some specific cases in the Lombardia Region and to identify potential candidates for relocation in the whole Region, by querying a complex database that was prepared integrating layers representing hydrogeological hazards on one side and exposed settlements on the other.
2008
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/548877
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