Evacuation as a communication and social phenomenon
Goudie, Douglas (2009) Evacuation as a communication and social phenomenon. In: Meyers, R.A., (ed.) Encyclopedia of Complexity and Systems Science. Springer, New York, USA, pp. 1-63.
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Abstract
Disaster management in Australia, and increasingly, globally, is focused on mitigation as part of a ‘threat continuum’, from acceptance that some locations are vulnerable to a hazard impact, through to recovery [13]. Emergency warnings and a possible need to evacuate are embedded as ‘spikes’ on that continuum. Thus, this article stresses the importance of developing ways; incentives, to mobilize aware at-risk community members to precautionary self-evacuation. For this to happen, people need to know and internalise the reality that they are in a hazard zone.
This article demonstrates that acknowledgement of hazard zones, developing community acceptance of threat and needed action needs to be at the individual, household and community levels. Evacuation modelling is needed only for those whose homes may be at real threat of a disaster impact. For those living in a hazard zone, a fully informed community, who have internalised the reality of the threat and have worked for maximum background preparation, and have mechanisms to receive alerts and warnings of a looming threat; a community predisposed to precautionary evacuations will result.
Capturing this complexity is the challenge for modellers. Evacuation is about hazard zone residents actively monitoring a looming threat via refined communication channels detailed in this article, within a developed social predisposition to act. Some examples are given. For consideration by scientists and students internationally, this article introduces the Communication Safety Triangle and the Seven Steps to Community Safety on the Preparedness Continuum, within the new research frame of Sustainability Implementation Research (SIR).