Analysis of public perception of debris flow hazard

DeChano, Lisa M; Butler, David

doi:10.1108/09653560110403278

Cited by 22 publications

(9 citation statements)

References 16 publications

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“…Few studies on risk perception have been conducted thus far with regard to debris flows. As an example, DeChano and Butler (2001) found that in Glacier National Park, Montana, the occurrence of numerous debris flows, including some that trapped people in their cars, had not changed public perception of this type of mass movement. A study in Taiwan on how disaster characteristics influence risk perception showed that the main concern of flood victims is financial loss, whereas the main concern of landslide victims is human casualties (Ho et al 2008).…”

Section: Discussion On Public Perception and Stakeholder Involvementmentioning

confidence: 97%

Public perception and stakeholder involvement in the crisis management of sediment‐related disasters and their mitigation: The case of the Stože debris flow in NW Slovenia

Mikoš

2010

Integr Envir Assess & Manag

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Sediments can pose a threat to humans not only when these deposits are polluted but also due to their large quantities. This physical aspect of sediments as a risk will be shown on a case study of a sediment-related disaster that occurred in the mountainous part of Slovenia, Central Europe in 2000. In November 2000, after a long wet period a large debris landslide had been triggered on the Stože slope and stopped in the channel of the Mangart creek. Such an event took the majority of local inhabitants and emergency staff by surprise. Nevertheless, they had just organized the first mitigation measures when, after 35 hours, they were surprised by an even larger debrisflowinitiated as the second phase of the same mass movement event. Within a few minutes, the wet debris flow had devastated the alpine valley of the Koritnica River and killed 7 people in the village of Log pod Mangartom. This paper deals with crisis management and first mitigation measures under this very tense situation of searching for dead bodies. The uncertainty about possible new debris flows drove all inhabitants out of the village by a decision of the civil protection unit, and also other activities of the emergency relief units were overshadowed by the 7 victims. One of the main problems and challenges at the same time was the over 700,000 m³ of wet debris flow deposits in the area of the village of Log pod Mangartom within the Triglav National park, which posed a direct threat of flooding during the first heavy rainfalls in spring 2001, and which were about to be removed to make place for future debris flows. The understanding about what really happened or about the immediate triggering factors was different among the professionals in charge for relief action and for preparing a final remediation plan. The first phase during and immediately after the disaster (relief intervention of emergency units especially those for civil protection) can be described as Concern-Driven Crisis Management or as Judgment-Based Crisis Management, respectively. The Quantitative Risk Assessment came into play in the second remediation phase through special law enforcement. Even after 10 years since the disaster, general public perception speaks in favor of judgment-based risk management rather than quantitative risk assessment, a situation that can be explained by the poor understanding of the system by local inhabitants, by low public involvement in the preparation of the final remediation plan undertaken by the state agencies, and by the fact that the final remediation is still not finished.

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Section: Discussion On Public Perception and Stakeholder Involvementmentioning

confidence: 97%

Public perception and stakeholder involvement in the crisis management of sediment‐related disasters and their mitigation: The case of the Stože debris flow in NW Slovenia

Mikoš

2010

Integr Envir Assess & Manag

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“…The debris flows in the western sector of the promontory are particularly important in terms of geomorphological dynamics (Schumm, 1994;De Chano and Butler, 2001). Moreover, colluvial deposits covering the contact between the Flysch and the Conglomerate are found in the upper portions of this slope.…”

Section: Geomorphological Hazardmentioning

confidence: 99%

Geomorphological hazard and tourist vulnerability along Portofino Park trails (Italy)

Brandolini

Faccini

Piccazzo

2006

Nat. Hazards Earth Syst. Sci.

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Abstract. The many trails existing in the coastal area of Portofino Promontory are used by tourists for trekking or as pathways to small villages and beaches. The aim of this paper is to define geomorphological hazard and tourist vulnerability in this area, within the framework of the management and planning of hiking activities in Portofino Natural Park.In particular, processes triggered by gravity, running waters and wave motion, affecting the slopes and the cliff, are considered. The typology of the trails and trail maintenance are also taken into account in relation to weather conditions that can make the excursion routes dangerous for tourists.In conclusion, an operative model is applied for the definition of possible risk scenarios. This model is founded on an inventory and the quantification of geomorphological hazards and tourist vulnerability, in comparison with trail rescue data. The model can be applied to other environments and tourist areas.

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“…Nevertheless, during the last years, several research studies were also conducted in the field of natural hazard risk perception (e.g. Litai et al, 1983;Rogers, 1984;Fell, 1994;McDaniels et al, 1995McDaniels et al, , 1996Finlay and Fell, 1997;DeChano and Butler, 2001;Plapp, 2004;Siegrist et al, 2004).…”

Section: Problems Of a Risk-based Approachmentioning

confidence: 99%

Modelling public risk evaluation of natural hazards: a conceptual approach

Plattner

2005

Nat. Hazards Earth Syst. Sci.

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Abstract. In recent years, the dealing with natural hazards in Switzerland has shifted away from being hazard-oriented towards a risk-based approach. Decreasing societal acceptance of risk, accompanied by increasing marginal costs of protective measures and decreasing financial resources cause an optimization problem. Therefore, the new focus lies on the mitigation of the hazard's risk in accordance with economical, ecological and social considerations.This modern proceeding requires an approach in which not only technological, engineering or scientific aspects of the definition of the hazard or the computation of the risk are considered, but also the public concerns about the acceptance of these risks. These aspects of a modern risk approach enable a comprehensive assessment of the (risk) situation and, thus, sound risk management decisions.In Switzerland, however, the competent authorities suffer from a lack of decision criteria, as they don't know what risk level the public is willing to accept. Consequently, there exists a need for the authorities to know what the society thinks about risks. A formalized model that allows at least a crude simulation of the public risk evaluation could therefore be a useful tool to support effective and efficient risk mitigation measures.This paper presents a conceptual approach of such an evaluation model using perception affecting factors P AF , evaluation criteria EC and several factors without any immediate relation to the risk itself, but to the evaluating person. Finally, the decision about the acceptance Acc of a certain risk i is made by a comparison of the perceived risk R i,perc with the acceptable risk R i,acc .

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Analysis of public perception of debris flow hazard

Cited by 22 publications

References 16 publications

Public perception and stakeholder involvement in the crisis management of sediment‐related disasters and their mitigation: The case of the Stože debris flow in NW Slovenia

Public perception and stakeholder involvement in the crisis management of sediment‐related disasters and their mitigation: The case of the Stože debris flow in NW Slovenia

Geomorphological hazard and tourist vulnerability along Portofino Park trails (Italy)

Modelling public risk evaluation of natural hazards: a conceptual approach

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