1st International Congress on Environmental Modelling and Software - Lugano, Switzerland - June 2002
Keywords
decision support systems, natural hazard, risk assessment
Start Date
1-7-2002 12:00 AM
Abstract
In this paper, a decision support system (DSS) able to assist urban planners in natural hazard mitigation in preventive phase is proposed. In order to define the structure of this DSS, a methodology based on influence graphs is defined, in which nodes represent entities that are important for their social, environmental and social functions on the territory, and links represent the influence between the entities. The level of functionality of each entity is influenced by both its physical integrity and the functionality of the related entities. As not all the entities influence the considered one in the same way, different levels of influence are taken into account. Several rules to automatically identify the level of relationship between different entities are defined. The proposed methodology has been applied to the territory of Imperia, in the north-western coast of Italy, with special regard to wildfires risk. Several entities have been selected, over the considered territory, according to their relevance. The hazard distribution over the considered area, due to wildfire risk has been estimated. On this basis, an overall procedure capable to assist the decision maker in the analysis of the territorial risk can be established.
A DSS for the evaluation of the consequences of natural hazards on a complex territorial system
In this paper, a decision support system (DSS) able to assist urban planners in natural hazard mitigation in preventive phase is proposed. In order to define the structure of this DSS, a methodology based on influence graphs is defined, in which nodes represent entities that are important for their social, environmental and social functions on the territory, and links represent the influence between the entities. The level of functionality of each entity is influenced by both its physical integrity and the functionality of the related entities. As not all the entities influence the considered one in the same way, different levels of influence are taken into account. Several rules to automatically identify the level of relationship between different entities are defined. The proposed methodology has been applied to the territory of Imperia, in the north-western coast of Italy, with special regard to wildfires risk. Several entities have been selected, over the considered territory, according to their relevance. The hazard distribution over the considered area, due to wildfire risk has been estimated. On this basis, an overall procedure capable to assist the decision maker in the analysis of the territorial risk can be established.
