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| Titel |
Integration of natural and technological risks in Lombardy, Italy |
| VerfasserIn |
S. Lari, P. Frattini, G. B. Crosta |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 6 ; Nr. 9, no. 6 (2009-12-11), S.2085-2106 |
| Datensatznummer |
250007075
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| Publikation (Nr.) |
 copernicus.org/nhess-9-2085-2009.pdf |
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| Zusammenfassung |
Multi-risk assessment is becoming a valuable tool for land planning,
emergency management and the deployment of mitigation strategies. Multi-risk
maps combine all available information about hazard, vulnerability, and
exposed values related to different dangerous phenomena, and provide a
quantitative support to complex decision making.
We analyse and integrate through an indicator-based approach nine major
threats affecting the Lombardy Region (Northern Italy, 25 000 km2),
namely landslide, avalanche, flood, wildfire, seismic, meteorological,
industrial (technological) risks; road accidents, and work injuries. For each
threat, we develop a set of indicators that express the physical risk and the
coping capacity or system resilience. By combining these indicators through
different weighting strategies (i.e. budgetary allocation, and fuzzy logic),
we calculate a total risk for each threat. Then, we integrate these risks by
applying AHP (Analytic Hierarchy Process) weighting, and we derive a set of
multi-risk maps. Eventually, we identify the dominant risks for each zone,
and a number of risk hot-spot areas.
The proposed approach can be applied with different degree of detail
depending on the quality of the available data. This allows the application
of the method even in case of non homogeneous data, which is often the case
for regional scale analyses. Moreover, it allows the integration of different
risk types or metrics.
Relative risk scores are provided from this methodology, not directly
accounting for the temporal occurrence probability of the phenomena. |
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