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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

A Conceptual Framework For 3d Urban Disaster Risk Visualization In Geo-spatial Environment

Kemec, Serkan 01 October 2011 (has links) (PDF)
Visualization could be defined as the graphical presentation of information, in which the main aim is to improve the user&rsquo / s perception. In all phases of the disaster management, decision makers come across huge data sets with spatio-temporal content. It is hard to deal with these sets in order to find answers to the main question of &ldquo / How can we decrease the losses due to disasters?&rdquo / , which is at the core of the disaster management concept. To furnish this aim, disaster risk information has to be transparent and clearly stated to the public, decision makers and disaster managers. This might be more sophisticated than the calculation of the risk. Taking precautions before a disaster to reduce the causalities and lossess engendered by natural disasters is relatively cheaper, and more importantly, better than cure. To achieve enhanced preparations for all kinds of disasters, visualization is quite an important tool for decision support and risk communication. The basic aim of this research is to propose a conceptual framework, with the consideration of all stakeholders related to the disaster management issue to have a better risk communication, and to guide the design, implementation and integration of the 3D urban modeling tools into disaster risk visualization. Moreover, an empirical methodology is also developed for the generation of visualization solutions through the design, and employment of the tool for disaster management framework. The proposed framework has three main phases .These are the definition of visualization components, object representation, and needs assessment. A new LoD hierarchy with indoor is proposed to visualize all the possible 3D urban disaster situations in the first phase. Then, a decision rule with eight attributes is proposed in the second phase to establish a link between the hazard type and the LoD needed in a 3D urban model for visualization. This decision rule is applied in a proposed three-level hierarchycal structure. The assessed objects of these three levels are urban, sub-urban zone and building. Moreover, a method to define the needed sub-urban zone is proposed. Finally, different 3D urban modelling methods are analyzed to define the data and process needs of possible 3D urban disaster visualization situations. Two natural hazard cases are studied within the scope of this dissertation to assess the operability of the proposed framework. These implementations involve one earthquake and one tsunami case. Special attention is paid to finding one specific sample for two modelling viewpoints, namely static and dynamic. The first applications of the proposed framework with all the related features prove quite promising.
62

Sustainable disaster recovery of historic buildings, the case of San Francisco after Loma Prieta earthquake

Al-Nammari, Fatima M. 17 September 2007 (has links)
Recovery from disaster is a challenging period for any community. Long-term recovery is important, especially in relation to the built heritage, but it is among the least explored phases of disaster. Identifying past problems is needed to reduce future recovery complications. This study investigates the long-term recovery of public and Non-Government Organizations (NGO) owned historic buildings after an earthquake in the light of chosen sustainability variables. It examines San Francisco after the 1989 Loma Prieta earthquake as a case study and analyzes time needs, community participation, and maintenance of historic character, to identify whether historic buildings faced special issues and the variables involved. The study uses different methods. It statistically compares data for a sample of public and NGO owned buildings in San Francisco and then analyzes the dynamics of recovery for three buildings that faced delays. The study has found that historic buildings faced delays in recovery but such delays were sometimes the results of major rehabilitation projects, thus having long-term benefits. There are many variables in the recovery process that delay historic buildings and can be addressed to reduce future delays, which are mostly results of the context, process, and players. Time needs for the recovery of buildings are affected by their function, damage level, and status. Also, the sustainability of the process needs to be addressed, mainly in terms of the way historic buildings are valued, and the degree to which such valuation allows them to be part of the heritage of the community at large.
63

The use of Information and Communication Technology in disaster management : The case of Cameroon

Bong, Carine Kuo, Ngang, Joseph Bayiah January 2010 (has links)
<p><strong>Abstract</strong></p><p>The frequency of natural disasters and its negative consequences in terms of the number of people killed, property destroyed and negative environmental impacts caused in the affected communities constitute one of the basic foundations and motivations for the development and use of ICT and other means of preventing as well as responding to disasters in the world today. This is simply because disaster management constitutes an important part of any developmental framework. Unfortunately a majority of these natural disasters occur in developing countries where information flow is greatly hampered because the national actors in disasters lack the skills to use ICT to prepare for and to response to disasters in their communities. Current study aims at studying the use of ICT in disaster management in Cameroon-a less developing country south of the Sahara</p><p>To achieve the aim of this study, a quantitative research approach was chosen. A total sample of 150 organisations was selected from a population of 285 organisations within Cameroon, that are directly or indirectly involved with disaster management or developmental issues of any nature. In total 150 questionnaires were administered to these selected national actors by mail, internet, telephone and self-administration and 85 of the organisations respondended to the questionnaire.</p><p>After collecting and analysing the data, the authors came to the conclusions that; disasters occur in Cameroon on frequent bases causing lots of damages thus the need for ICT use in humanitarian logistics to move information and material. Results showed that national actors use the radio and local TV (CRTV) for disaster preparedness and the mobile phone for disaster response, while the internet and computer techonology, foreign TV, Fixed phone and fax had a very low usage rate or sometimes not used at all. The reason for low usage or no usage was due to problems encountered by national actors in an attempt of trying to use them. Against this background, the authors suggested a number of recommendations that could improve the degree of ICT usage. One of them was that the Cameroon government should partner with private sector firms to make ICT infrastructure available by investing more and improving on the telecommunication sector in the country. This will solve the problem of poor ICT infrastructure, poor radio and TV signals, limited internet connectivity accessibility and availability in Cameroon.<strong></strong></p>
64

Experiences of social vulnerability in indigent households related to water service delivery in Kayamandi, Stellenbosch

Harris, Winston J. January 2012 (has links)
<p>The extent of a community experiencing social vulnerability depends on the community&rsquo / s ability to access resources that may contribute to coping mechanisms (either within the household or provided externally by a responsible authority) that decrease the impacts and effects of a disaster. Therefore, the purpose of this research was to identify the existence of social and institutional mechanisms that aim to reduce experiences of water inaccessibility and the causes of social vulnerability, and increase coping mechanisms within Kayamandi. Kayamandi is a low income residential community on the north-westerly periphery of the greater Stellenbosch town in the Western Cape. The research attained&nbsp / responses through questionnaires and surveys from residents, community organisations and responsible personnel. These surveys allowed the researcher to produce raw attribute data for each household that assisted in spatially representing vulnerable households and informing the five priority areas of the Hyogo Framework for Action. Contributing to this method of attaining information, secondary geographic data collection was obtained through the Stellenbosch Local Municipality, the National Geospatial Information Directorate and the National Demarcation Board. The findings of this thesis established that household and public water infrastructure contribute to the risk of experiencing social vulnerability that affects economic standings and quality of health within the community. Contributing to this and due to Kayamandi&rsquo / s politically sensitive and historically fractioned community, social cohesion has also been noted as an area of vulnerability. Although these vulnerabilities are experienced, residents are able to implement technical, social and municipal reliant coping mechanisms. However, although efforts from Stellenbosch Local Municipality do respond to most of the key indicators within the Hyogo Framework for Action, the study found no concrete efforts within the Stellenbosch Local Municipality that illustrate integrated mechanisms to reduce the impacts of disasters and compound effects.</p>
65

Experiences of social vulnerability in indigent households related to water service delivery in Kayamandi, Stellenbosch

Harris, Winston J. January 2012 (has links)
<p>The extent of a community experiencing social vulnerability depends on the community&rsquo / s ability to access resources that may contribute to coping mechanisms (either within the household or provided externally by a responsible authority) that decrease the impacts and effects of a disaster. Therefore, the purpose of this research was to identify the existence of social and institutional mechanisms that aim to reduce experiences of water inaccessibility and the causes of social vulnerability, and increase coping mechanisms within Kayamandi. Kayamandi is a low income residential community on the north-westerly periphery of the greater Stellenbosch town in the Western Cape. The research attained&nbsp / responses through questionnaires and surveys from residents, community organisations and responsible personnel. These surveys allowed the researcher to produce raw attribute data for each household that assisted in spatially representing vulnerable households and informing the five priority areas of the Hyogo Framework for Action. Contributing to this method of attaining information, secondary geographic data collection was obtained through the Stellenbosch Local Municipality, the National Geospatial Information Directorate and the National Demarcation Board. The findings of this thesis established that household and public water infrastructure contribute to the risk of experiencing social vulnerability that affects economic standings and quality of health within the community. Contributing to this and due to Kayamandi&rsquo / s politically sensitive and historically fractioned community, social cohesion has also been noted as an area of vulnerability. Although these vulnerabilities are experienced, residents are able to implement technical, social and municipal reliant coping mechanisms. However, although efforts from Stellenbosch Local Municipality do respond to most of the key indicators within the Hyogo Framework for Action, the study found no concrete efforts within the Stellenbosch Local Municipality that illustrate integrated mechanisms to reduce the impacts of disasters and compound effects.</p>
66

How the South African government responded to the United Nations international decade for natural disaster reduction : a policy review .

Hamilton, Jordan Richard. January 2003 (has links)
No abstract available. / Thesis (M.Dev. Studies)-University of KwaZulu-Natal, Durban, 2003.
67

Ground-Breaking Contingency Planning with Risk- &amp; Disaster Management : A Case Study at Höganäs Japan K.K.

Häggberg, David January 2015 (has links)
Final Thesis, Master of Business Administration &amp; Economic Program, Field of Research: Management, School of Business &amp; Economics at Linnaeus University, Växjö, Sweden, 4FE10E, Spring 2015. Author: David Häggberg Supervisor: Richard Nakamura (Daniel Ericsson) Title: Ground-Breaking Contingency Planning with Risk- &amp; Disaster Management Subtitle: A Case Study at Höganäs Japan K.K. Background: On the 11th of March 2011, Japan was hit with one of the largestearthquakes in modern history at a magnitude of 9.0 on the Richter scale. Thiscaused wide spreading and lasting delays in production in large parts of the worlddue to organizations supply chain being connected to Japan. Subsequently RiskManagement has received renewed and increasing attention, both in Japan and therest of the world. The proactive concept of Risk Management primary builds itsmodels around probability and utilizes this concept as a basis for determining whichrisks that should be mitigated through countermeasures and financial investments.Though when faced with an environment filled with uncertainty and an additionallevel of indirect risk exposure due to the potential domino effect of natural disasterssuch as earthquakes, can Risk Management really handle that, a world whereprobability fails? The reactive approach used by Disaster Management mightcontain clues for making Risk Management more flexible. Research Question: How can a transnational corporation adapt their RiskManagement strategy and plan for contingencies in a country with an unstablenatural environment? Purpose: This thesis seeks to investigate how a strategy for Risk Management canbe created and adapted with the regard to uncertainties such as an unstableenvironmental situation. The goal is further to highlight how traditional RiskManagement can be combined with other related areas such as DisasterManagement, in order to make a more complete strategy and a more flexible plan foraction. An adaption to the Risk Management strategy that would be made in order tomake the strategy applicable on a global level and including areas with unstableenvironmental situations. Method: This study has utilized a multi-strategy approach and the main source ofdata for this case study has come from semi-structured interviews and acomplementary survey. The author has found it necessary to adopt a pragmaticstandpoint with a qualitative focus in order to explore the research question andunderstand the collected data to its fullest extent. Conclusion: Adopting the local practices and mindset that strives to constantlysecure the supply chain and fulfill customer obligations by creating contingenciesthe risk exposure can be mitigated. Utilizing a quickly adaptable approach instead oflong-term planning in combination with concepts such as a Disaster Recovery Planthe Risk Management strategy can be altered towards becoming more flexible.
68

Experiences of social vulnerability in indigent households related to water service delivery in Kayamandi, Stellenbosch

Harris, Winston J. January 2012 (has links)
The extent of a community experiencing social vulnerability depends on the community’s ability to access resources that may contribute to coping mechanisms (either within the household or provided externally by a responsible authority) that decrease the impacts and effects of a disaster. Therefore, the purpose of this research was to identify the existence of social and institutional mechanisms that aim to reduce experiences of water inaccessibility and the causes of social vulnerability, and increase coping mechanisms within Kayamandi. Kayamandi is a low income residential community on the north-westerly periphery of the greater Stellenbosch town in the Western Cape. The research attained responses through questionnaires and surveys from residents, community organisations and responsible personnel. These surveys allowed the researcher to produce raw attribute data for each household that assisted in spatially representing vulnerable households and informing the five priority areas of the Hyogo Framework for Action. Contributing to this method of attaining information, secondary geographic data collection was obtained through the Stellenbosch Local Municipality, the National Geospatial Information Directorate and the National Demarcation Board. The findings of this thesis established that household and public water infrastructure contribute to the risk of experiencing social vulnerability that affects economic standings and quality of health within the community. Contributing to this and due to Kayamandi’s politically sensitive and historically fractioned community, social cohesion has also been noted as an area of vulnerability. Although these vulnerabilities are experienced, residents are able to implement technical, social and municipal reliant coping mechanisms. However, although efforts from Stellenbosch Local Municipality do respond to most of the key indicators within the Hyogo Framework for Action, the study found no concrete efforts within the Stellenbosch Local Municipality that illustrate integrated mechanisms to reduce the impacts of disasters and compound effects. / Magister Artium - MA
69

Geographical patterns and disasters management : case study of Alexandra Township / O.M. Mere

Mere, Oniccah Monimang January 2011 (has links)
The focus of the study is to explore Geographic patterns and Disasters Management in the context of Alexandra Township situated in the Johannesburg Metro. The research evaluates if the Disaster Management Unit in Johannesburg municipality is prepared in terms of policies, community campaigns on flood disasters as well as forming organizations that will assist in times of disaster. It also refers to other South African townships with regard to where most affected townships are located, how the community is affected and how the local government responds. Disaster management infers preparedness for disaster; therefore, measures of preparation from the local government need to be in place to reduce extreme losses, pro-active policies should be in place to guide officials on how to manage disasters affecting their areas. The South African local government as the third sphere of government is closest to the people and mostly responsible for the community’s wellbeing. It is for this reason that local governments should have a strategy on how to deal with disaster. Having experienced natural disaster incidents, most countries in the world have been compelled to develop legislations, disaster management and mitigation plans that guide them on how to prevent and respond to disasters. In view of a several unimagined disaster incidents in South Africa, the researcher maintains that the concept and practice of disaster management is rather new in South Africa, and many local governments do not have well-informed strategies to manage natural disasters. Unlimited rain caused by climate change, the position of residence and overpopulation can be major attributes to disasters hazards. Floods can easily flow into residential dwellings and destroy the property, not only that, but it can also result in the loss of lives and enhance the spread of diseases. It becomes more of tragedy as most people living in these areas are poor and have all their belongings in the same place which makes them even more vulnerable to disaster. The location of Stjwetla settlement along the Alexandra Township riverbanks becomes relevant at this point in case. The residents of Stjwetla are exposed to flood threats, they are very much aware of the risk associated with the low-lying geographical patterns, overpopulation and the riverbanks. However, they still occupy the disaster prone sites because they cannot afford elsewhere. Stjwetla is an illegal settlement where no one pays rent; there is a serious lack of basic municipal services such as water and electricity in the area. The residents claim to have arrived in this area simply because Johannesburg seems to offer informal job opportunities; therefore, they anticipate good opportunities in terms of employment. Most of them are from Limpopo province and have more than twenty years residing in Stjwetla, and are still unemployed. The community has formed rescue groups that help in times of regular disasters such as floods and fire. The rescue groups also mediate between the community and the northern Johannesburg municipal Disaster and Emergency Unit. The Disaster and Emergency Unit have formed good relations with the community leaders for support and emergency response. Other organizations, for instance Red Cross Society make regular input, by offering food and clothes to the people affected. Red Cross Society and other organizations work together with the local government to help Stjwetla residents deal better with disaster effects. However, the residents feel that other government departments, such as social development, health and housing must assist as well. Residents are of an idea that the disaster management unit alone cannot conquer the disaster risk in Stjwetla but social development should help with psychological therapy while health department should intervene to reduce long-term effects of injuries. / M, Development and Management, Public Management and Administration, North-West University, Vaal Triangle Campus, 2012
70

Inter-Organizational Problem Solving Among Disaster Managers: The Role of Common Ground

Blust-Volpato, Stephanie Anna 10 April 2014 (has links)
Despite disaster managers’ best efforts, inter-organizational disaster management suffers from varying levels of success. One factor that is likely to account for these variations is team mutual understanding, also known as common ground. To validate the potential effect of common ground in disaster management, the thesis investigates common ground in several interviews with disaster managers and in an experimental study involving an inter-organizational disaster event scenario. Analysis of interviews revealed that disaster managers perceived gaps in understanding between responders, the importance of mutual understanding, and perceived common ground similarly to depictions in theory with a few exceptions. Analyses of the experimental study indicated that contextual factors of Team composition, Problem solving approach and Type of tasks differently impacted measures of performance and implicit coordination, and that implicit coordination partially mediated and supressed the relationship between contextual factors and decision quality. Findings suggest the variation in disaster managers’ performance can be ascribed to common ground, implicit coordination, and contextual factors. Moreover, results showed the satisfaction with outcome did not correlate with expert rated quality of decision; and that while satisfaction related to consensus and quality of the decision was linked to generating alternative ideas and debate. Collaboration proved to be more effective in public communication tasks, especially for homogenous team composition. The findings support initiatives for more cross-training and further lab and field experiments.

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