15,258 research outputs found

    A Review of the Procedures Associated with Devising Emergency Evacuation Plans

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    The incidence of freak weather and geological events, such as earthquakes and volcanic eruptions, has increased over the past thirty years. Coupled with an increase in the populations located in the path of these natural disasters, the imminent danger posed by naturally occurring phenomena has also risen. Given the potential dangers, it is wise for policy administrators to ensure that appropriate emergency plans are in place that aim to minimize the negative consequences associated with these disasters. Effective emergency planning and management should successfully combine the skills and knowledge of law enforcement agencies, transport planners as well as the knowledge and skills of emergency planning professionals. In Australia, there has not been a thorough investigation of the emergency impacts on the transport infrastructure nor have emergency plans adequately integrated the transportation aspect. Which transport routes should evacuees and emergency vehicles use is a question that needs to be answered urgently to avoid situations: · Where evacuees are trapped in their vehicles, · When emergency personnel are unable to gain access to the people in need, and · When emergency vehicles are not able to get onto the road network due to traffic congestion. Thus in a case of a suburban bush fire (wild fire), a fire that may have been easily extinguished or controlled is left to engulf more bush land and increase in ferocity. This paper critically assesses the many emergency evacuation models developed and also describes the important information required to devise the models. It is clear, however, that more research needs to be undertaken that specifically investigates the effects of a mass evacuation on current transport networks

    STRESS-STRAIN CAPACITY ANALYSIS FOR THE IMPACT OF NATURAL DISASTERS ON COUPLED INFRASTRUCTURE FACILITIES

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    Infrastructure facilities serve as the backbone of the communities and industries by sustaining social and economic activities through their services. However, the physical impact of a disaster can have an adverse effect on the functioning of the infrastructure. In addition, the affected infrastructure facilities are unable to adequately meet the needs of the community immediately after the disaster. Thus, to compensate for gaps in services, infrastructure facilities are likely to run their systems, such that it puts additional stress on their resources that exceeds their designed capacities at the expense of level of service. For example, after the devastating earthquake in Haiti in 2010, disrupted utility services, limited available road networks, and the lack of civic governance influenced the capacity of all essential service providers such as hospitals. Furthermore, the hospitals that were impacted by the earthquake had limited resources, such as water and power utility for operating the hospitals, beds for patients, medical staff, and medical supplies, to meet the increased health needs of the community. As a result, the hospitals in Haiti had to put excessive stress on their available resources, as their remaining capacities were not enough to accommodate the increased number of patients without assistance from NGOs or other external entities. If the emergency managers of the hospitals were able to evaluate their remaining capacities based on the excessive stress so that they could make appropriate strategies for mitigating the excessive stress ahead of time, the infrastructure facility would have serviced the affected communities more efficiently

    Feasibility of a human performance model in consequence management

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    Human civilization has always encountered unpredictable disasters as a result of natural events. Now it also faces the disasters caused by terrorist attacks. Governments must have consequence management plans in place to protect public health and safety, restore essential services, and provide emergency relief to affected businesses and individuals. Human performance models predict outcomes in complex dynamic situations. Such models can simulate disaster management procedures under varying circumstances. This work applies human performance modeling in a terrorist situation and evaluates possible uses of such models by first responders in practical consequence management applications. It includes a case study of an attempted terrorist attack --Abstract, page iv

    Measuring the Efficacy of Leaders to Assess Information and Make Decisions in a Crisis: The C-LEAD Scale

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    Based on literature and expert interviews, we developed the Crisis Leader Efficacy in Assessing and Deciding scale (C-LEAD) to capture the efficacy of leaders to assess information and make decisions in a public health and safety crisis. In Studies 1 and 2, we find that C-LEAD predicts decision-making difficulty and confidence in a crisis better than a measure of general leadership efficacy. In Study 3, C-LEAD predicts greater motivation to lead in a crisis, more crisis leader role-taking, and more accurate performance while in a crisis leader role. These findings support the scale's construct validity and broaden our theoretical understanding of the nature of crisis leader efficacy.

    Evaluation of response capacity to patient attention demand in an Emergency Department

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    The progressive growth of aging, increased life expectancy and a greater number of chronic diseases contribute significantly to the growing demand of emergency medical care, and thus, on saturation of Emergency Departments. This is one of the most important current problems in healthcare systems worldwide. This work proposes an analytical model to calculate the theoretical throughput of a particular sanitary staff configuration in a Hospital Emergency Department, which is, the number of patients it can attend per unit time given its composition. The analytical model validation is based on data generated by simulation of the real system, based on an agent based model of the system, which makes it possible to take into account different valid sanitary staff configurations and different number of patients entering the emergency service. In fact, we aim to evaluate the response capacity of an ED, specifically of doctors, nurses, admission and triage personnel, who make up a specific sanitary staff configuration, for any possible configuration, according to the patient flow throughout the service. It would not be possible to test the different possible situations in the real system and this is the main reason why we obtain the necessary information about the system performance for the validation of the model using a simulator as a sensor of the real system. The theoretical throughput is a measure of the response capacity to patient's attention in the system and, moreover, it will be a reference in order to make possible a model for planning the entry of non-critical patients into the service by its relocation in the current input pattern, which is an immediate future goal in our current research. This research offers the availability of relevant knowledge to the managers of the Emergency Departments to make decisions to improve the quality of the service in anticipation of the expected growing demand of the service in the very near future

    Committee V.1: Accidental Limit States

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    Concern for accidental scenarios for ships and offshore structures and for their structural components leading to limit states. Types of accidental scenarios shall include collision, grounding, dropped objects, explosion, and fire. Attention shall be given to hazard identification, accidental loads and nonlinear structural consequences including strength reduction, affecting the probability of failure and related risks. Uncertainties in the use of accidental scenarios for design and analysis shall be highlighted. Consideration shall be given to the practical application of methods and to the development of ISSC guidance for quantitative assessment and management of accidental risks

    Contemplating workplace change: evolving individual thought processes and emergent story lines

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    Drawing on topical life histories of physicians in a particularly volatile public health sector environment, we build theory around the contemplation of workplace change. Overall, our study provides evidence as to why single or multiple independent factors, such as pay or job structure, may fail to predict or explain individual decisions to stay in or change workplaces. Instead, the contemplation process we argue is a complex, evolutionary, and context-dependent one that requires individualized interventions. Our findings reveal the prevalence of episodic context-self fit assessments prompted by triggering stimuli, two mechanisms by which thought processes evolved (reinforcement and recalibration), and four characteristic story lines that explain why the thought processes manifested as they did (exploring opportunities, solving problems, reconciling incongruence, and escaping situations). Based on our findings, we encourage practitioners to regularly engage in story-listening and dialogic conversations to better understand, and potentially affect the evolving socially constructed realities of staff members

    Report on DIMACS Working Group Meeting: Mathematical Sciences Methods for the Study of Deliberate Releases of Biological Agents and their Consequences

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    55 pages, 1 article*Report on DIMACS Working Group Meeting: Mathematical Sciences Methods for the Study of Deliberate Releases of Biological Agents and their Consequences* (Castillo-Chavez, Carlos; Roberts, Fred S.) 55 page

    An Evaluation Schema for the Ethical Use of Autonomous Robotic Systems in Security Applications

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    We propose a multi-step evaluation schema designed to help procurement agencies and others to examine the ethical dimensions of autonomous systems to be applied in the security sector, including autonomous weapons systems
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