Risk community profile : a tool to assess a variety of hazards on a territory

Abstract : Communities are facing a large variety of risks that community leaders have the responsibility to manage and reduce in relation with numerous stakeholders and partners. Risk assessment is the first step of the risk management process and serves as a base for the risk reduction decisions that can have a strong impact on the territory. A detailed risk assessment is not an easy task and the decision to undertake such assessments should be based on a first simple estimate of the risk level. From a community point of view, it is also essential to be able to consider all the types of hazards to take coherent decisions and to characterise the relative contribution of each type of hazard to the global risk on the community. It is to answer to these needs that the APELL program of UNEP has asked to INERIS to develop the community risk profile tool described in the present paper. The tool is based on a multidimensional definition of risk. Nine dimensions are considered and assessed for each of the hazard types. Risk is considered as a combination of the presence of a hazard source, the probability of the hazardous phenomena it can produce, and its intensity, the presence of vulnerable elements in the surroundings, their vulnerability, the existence of prevention and protection measures, the emergency preparedness and the resilience of the community. The hazards considered are industrial accidents, transport of dangerous goods, flooding, volcanoes, earthquake, tsunami, landslide, forest fire, tornadoes and cyclones. For each of these hazardous phenomena, a questionnaire allows for the assessment of the nine dimensions of risk. For most of the dimensions, the assessment is based on a multicriteria approach with results expressed in a common scale ranging from 1 to 5, 1 being the most favourable situation and 5 the most unfavourable one. For some of the dimensions, namely intensity and probability, a quantitative scale can be used. The attempt was made to propose common scales, the definition of which is commented in this paper. Examples of assessment criteria are given together with examples of the methodological difficulties encountered during this project. Some have been solved and the solutions proposed are described. Other difficulties remain open to contributions from the scientific communities but also from the stakeholders of the risk management process. The Community Risk Profile is currently under revision by UNEP experts for an expected publication in mid 2007.
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12. International Symposium on Loss Prevention and Safety Promotion in the Process Industry, May 2007, Edimbourg, United Kingdom. IChemE, pp.7, 2007
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Bruno Debray, Bastien Affeltranger, Gautier Vincent, Ruth Coutto. Risk community profile : a tool to assess a variety of hazards on a territory. 12. International Symposium on Loss Prevention and Safety Promotion in the Process Industry, May 2007, Edimbourg, United Kingdom. IChemE, pp.7, 2007. 〈ineris-00976182〉

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