1,451 research outputs found
Emergency Resource Layout with Multiple Objectives under Complex Disaster Scenarios
Effective placement of emergency rescue resources, particularly with joint
suppliers in complex disaster scenarios, is crucial for ensuring the
reliability, efficiency, and quality of emergency rescue activities. However,
limited research has considered the interaction between different disasters and
material classification, which are highly vital to the emergency rescue. This
study provides a novel and practical framework for reliable strategies of
emergency rescue under complex disaster scenarios. The study employs a
scenario-based approach to represent complex disasters, such as earthquakes,
mudslides, floods, and their interactions. In optimizing the placement of
emergency resources, the study considers government-owned suppliers, framework
agreement suppliers, and existing suppliers collectively supporting emergency
rescue materials. To determine the selection of joint suppliers and their
corresponding optimal material quantities under complex disaster scenarios, the
research proposes a multi-objective model that integrates cost, fairness,
emergency efficiency, and uncertainty into a facility location problem.
Finally, the study develops an NSGA-II-XGB algorithm to solve a disaster-prone
province example and verify the feasibility and effectiveness of the proposed
multi-objective model and solution methods. The results show that the
methodology proposed in this paper can greatly reduce emergency costs, rescue
time, and the difference between demand and suppliers while maximizing the
coverage of rescue resources. More importantly, it can optimize the scale of
resources by determining the location and number of materials provided by joint
suppliers for various kinds of disasters simultaneously. This research
represents a promising step towards making informed configuration decisions in
emergency rescue work
Flood Risk and Resilience
Flooding is widely recognized as a global threat, due to the extent and magnitude of damage it causes around the world each year. Reducing flood risk and improving flood resilience are two closely related aspects of flood management. This book presents the latest advances in flood risk and resilience management on the following themes: hazard and risk analysis, flood behaviour analysis, assessment frameworks and metrics and intervention strategies. It can help the reader to understand the current challenges in flood management and the development of sustainable flood management interventions to reduce the social, economic and environmental consequences from flooding
Natural Disasters in Latin America and the Caribbean: An Overview of Risk
Escrito como resenha do livro "A nova razĂŁo do mundo: ensaio sobre a sociedade neoliberal" organizado por Pierre Dardot e Christian Laval.
DARDOT, Pierre; LAVAL, Christian. A nova razão do mundo: ensaio sobre a sociedade neoliberal. Tradução Mariana Echalar. São Paulo: Boitempo, 2016
Facility Location Planning in Relief Logistics: Decision Support for German Authorities
Disasters have devastating impacts on societies, affecting millions of people and businesses each year. The delivery of essential goods to beneficiaries in the aftermath of a disaster is one of the main objectives of relief logistics. In this context, selecting suitable locations for three different types of essential facilities is central: warehouses, distribution centers, and points of distribution. The present dissertation aims to improve relief logistics by advancing the location selection process and its core components.
Five studies published as companion articles address substantial aspects of relief logistics. Despite the case studies\u27 geographical focus on Germany, valuable insights for relief logistics are derived that could also be applied to other countries. Study A addresses the importance of public-private collaboration in disasters and highlights the significance of considering differences in resources, capabilities, and strategies when using logistical models. Moreover, power differences, information sharing, and partner selection also play an important role. Study B elaborates on the challenges to identify candidate locations for warehouses, which are jointly used by public and private actors, and suggests a methodology to approach the collaborative warehouse selection process. Study C investigates the distribution center selection process and highlights that including decision-makers\u27 preferences in the objective function of location selection models helps to raise awareness of the implications of location decisions and increases transparency for decision-makers and the general population. Study D analyzes the urban water supply in disasters using a combination of emergency wells and mobile water treatment systems. Selected locations of mobile systems change significantly if vulnerable parts of the population are prioritized. Study E highlights the importance of accurate information in disasters and introduces a framework that allows determining the value of accurate information and the planning error due to inaccurate information.
In addition to the detailed results of the case studies, four general recommendations for authorities are derived: First, it is essential to collect information before the start of the disaster. Second, training exercises or role-playing simulations with companies will help to ensure that planned collaboration processes can be implemented in practice. Third, targeted adjustments to the German disaster management system can strengthen the country\u27s resilience. Fourth, initiating public debates on strategies to prioritize parts of the population might increase the acceptance of the related decision and the stockpiling of goods for the people who know in advance that they will likely not receive support.
The present dissertation provides valuable insights into disaster relief. Therefore, it offers the potential to significantly improve the distribution of goods in the aftermath of future disasters and increase disaster resilience
Facility Location Planning in Relief Logistics: Decision Support for German Authorities
The delivery of essential goods to beneficiaries in the aftermath of a disaster is one of the main objectives of relief logistics. Thereby, the present work aims to improve relief logistics by improving the location selection of warehouses, distribution centers, and points of distribution. Consequently, it offers the potential to significantly improve the distribution of goods in the aftermath of future disasters and, thereby, increase disaster resilience
Technology Resources for Earthquake Monitoring and Response (TREMOR)
Earthquakes represent a major hazard for populations around the world, causing frequent
loss of life, human suffering, and enormous damage to homes, other buildings, and
infrastructure. The Technology Resources for Earthquake Monitoring and Response
(TREMOR) proposal is designed to address this problem. This proposal recommends two
prototype systems integrating space-based and ground technology. The suggested pilot
implementation is over a 10-year period in three focus countries – China, Japan, and Peru –
that are among the areas in the world most afflicted by earthquakes.
The first proposed system is an Earthquake Early Warning Prototype System that addresses
the potential of earthquake precursors, the science of which is incomplete and considered
controversial within the scientific community. We recommend the development and launch
of two small satellites to study ionospheric and electromagnetic precursors. In combination
with ground-based precursor research, the data gathered will improve existing knowledge of
earthquake-related phenomena.
The second proposed system is an Earthquake Simulation and Response Prototype. An
earthquake simulator will combine any available precursor data with detailed knowledge of
the affected areas using a Geographic Information System (GIS) to identify those areas that
are most likely to experience the greatest level of damage. Mobile satellite communication
hubs will provide telephone and data links between response teams, while satellite navigation
systems will locate and track emergency vehicles. We recommend a virtual response satellite
constellation composed of existing and future high resolution satellites. We also recommend
education and training for response teams on the use of these technologies.
The two prototypes will be developed and implemented by a proposed non-profit nongovernmental
organization (NGO) called the TREMOR Foundation, which will obtain
funding from government disaster management agencies and NGOs. A for-profit subsidiary
will market any spin-off technologies and provide an additional source of funding.
Assuming positive results from the prototype systems, Team TREMOR recommends their
eventual and permanent implementation in all countries affected by earthquakes.Postprint (published version
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PREdictive model for DISaster response configuration (PREDIS decision platform)
This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonThe extraordinary conditions of a disaster, require the mobilisation of all available resources, inducing the rush of humanitarian partners into the affected area. This phenomenon called the proliferation of actors, causes serious problems during the disaster response phase including the oversupply, duplicated efforts, lack of planning. The aim of this research is to provide a solution to reduce the partner proliferation problem. To that end the main research question is put forward as “How to reduce the proliferation of partners in a disaster response”? Panel analysis of the historic record of 4,252 natural onset disasters between 1980 to 2013 via regression analysis, MA and AHP gives rise to the formation of a predictive decision-making platform called PREDIS. It is capable of predicting the human impact of the disaster (fatality, injured, homeless) of up to 3% of errors and enables the decision makers to estimate the required needs for each disaster and prioritises them based on the disaster type and socio-economics of the affected country. It further renders it possible to rank and optimise the desired partners based on the decision maker’s preferences. Verification of the PREDIS through a simulation game design using a sample group of decision makers, show that this technique enables the user to decide within one hour after the disaster strike using the widely available data at the time of the disaster. It also enables non-experts to decide almost identically to experts in terms of the similarity of the choices and the speed of the decision.The lack of an extensive database for the potential humanitarian partners from which to choose, is the limitation of this research in addition to the lack of standardised set of minimum requirements for the suitable partners.The model is also as strong as its data feed which is inconsistent in various humanitarian sources
Location-allocation models for relief distribution and victim evacuation after a sudden-onset natural disaster
Quick response to natural disasters is vital to reduce loss of and negative impact to human life. The response is more crucial in the presence of sudden-onset, difficult-to-predict natural disasters, especially in the early period of those events. On-site actions are part of such response, some of which are determination of temporary shelters and/ or temporary medical facility locations, the evacuation process of victims and relief distribution to victims. These activities of last-mile disaster logistics are important as they are directly associated with sufferers, the main focus of any alleviation of losses caused by any disaster.
This research deals with the last-mile site positioning of relief supplies and medical facilities in response to a sudden-onset, difficult-to-predict disaster event, both dynamically and in a more coordinative way during a particular planning time horizon. Four mathematical models which reflect the situation in Padang Pariaman District after the West Sumatera earthquake were built and tested. The models are all concerned with making decisions in a rolling time horizon manner, but differ in coordinating the operations and in utilization of information about future resource availability. Model I is a basic model representing the current practice with relief distribution and victim evacuation performed separately and decisions made only considering the resources available at the time. Model II considers coordination between the two operations and conducts them with the same means of transport. Model III takes into account future information keeping the two operations separate. Model IV combines the features of Models II and III. The four models are approached both directly and by using various heuristics.
The research shows that conducting relief distribution and victim evacuation activities by using shared vehicles and/or by taking into account future information on resource availability improves the current practice . This is clearly demonstrated by the experimental results on small problems. For large problems, experiments show that it is not practical to directly solve the models, especially the last three, and that the solution quality is poor when the solution process is limited to a reasonable time. Experiments also show that the heuristics help improve the solution quality and that the performances of the heuristics are different for different models. When each model is solved using its own best heuristic, the conclusions from results of large problems get very close to those from small problems. Finally, deviation of future information on resource availability is considered in the study, but is shown not to affect the performance of model III and model IV in carrying out relief distribution and victim evacuation. This indicates that it is always worthwhile to take into account the future information, even if the information is not perfect, as long as it is reasonably reliable
Natural Disasters in Latin America and the Caribbean: An Overview of Risk
This paper integrates information from both economics and the physical sciences to survey the effects of natural disasters in the region. A first section surveys the human and economic impact of natural disasters in the region at both the household and aggregate levels, noting both the geographical distribution of disaster risk and its long-term implications for development. A second section reviews types of disasters prevalent in the region, and future disaster risks, as well as the socio-economic sources of vulnerability to disasters resulting from development and migration patterns. A third section discusses risk management strategies at the household and community level, with public policy options and proposals for emergency response and finding an appropriate mix of local, national and market-based solutions.
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