Search results

1 – 10 of 216
Open Access
Article
Publication date: 10 May 2022

Jindong Song, Jingbao Zhu and Shanyou Li

Using the strong motion data of K-net in Japan, the continuous magnitude prediction method based on support vector machine (SVM) was studied.

Abstract

Purpose

Using the strong motion data of K-net in Japan, the continuous magnitude prediction method based on support vector machine (SVM) was studied.

Design/methodology/approach

In the range of 0.5–10.0 s after the P-wave arrival, the prediction time window was established at an interval of 0.5 s. 12 P-wave characteristic parameters were selected as the model input parameters to construct the earthquake early warning (EEW) magnitude prediction model (SVM-HRM) for high-speed railway based on SVM.

Findings

The magnitude prediction results of the SVM-HRM model were compared with the traditional magnitude prediction model and the high-speed railway EEW current norm. Results show that at the 3.0 s time window, the magnitude prediction error of the SVM-HRM model is obviously smaller than that of the traditional τc method and Pd method. The overestimation of small earthquakes is obviously improved, and the construction of the model is not affected by epicenter distance, so it has generalization performance. For earthquake events with the magnitude range of 3–5, the single station realization rate of the SVM-HRM model reaches 95% at 0.5 s after the arrival of P-wave, which is better than the first alarm realization rate norm required by “The Test Method of EEW and Monitoring System for High-Speed Railway.” For earthquake events with magnitudes ranging from 3 to 5, 5 to 7 and 7 to 8, the single station realization rate of the SVM-HRM model is at 0.5 s, 1.5 s and 0.5 s after the P-wave arrival, respectively, which is better than the realization rate norm of multiple stations.

Originality/value

At the latest, 1.5 s after the P-wave arrival, the SVM-HRM model can issue the first earthquake alarm that meets the norm of magnitude prediction realization rate, which meets the accuracy and continuity requirements of high-speed railway EEW magnitude prediction.

Details

Railway Sciences, vol. 1 no. 2
Type: Research Article
ISSN: 2755-0907

Keywords

Open Access
Article
Publication date: 26 December 2023

Mehmet Kursat Oksuz and Sule Itir Satoglu

Disaster management and humanitarian logistics (HT) play crucial roles in large-scale events such as earthquakes, floods, hurricanes and tsunamis. Well-organized disaster response…

Abstract

Purpose

Disaster management and humanitarian logistics (HT) play crucial roles in large-scale events such as earthquakes, floods, hurricanes and tsunamis. Well-organized disaster response is crucial for effectively managing medical centres, staff allocation and casualty distribution during emergencies. To address this issue, this study aims to introduce a multi-objective stochastic programming model to enhance disaster preparedness and response, focusing on the critical first 72 h after earthquakes. The purpose is to optimize the allocation of resources, temporary medical centres and medical staff to save lives effectively.

Design/methodology/approach

This study uses stochastic programming-based dynamic modelling and a discrete-time Markov Chain to address uncertainty. The model considers potential road and hospital damage and distance limits and introduces an a-reliability level for untreated casualties. It divides the initial 72 h into four periods to capture earthquake dynamics.

Findings

Using a real case study in Istanbul’s Kartal district, the model’s effectiveness is demonstrated for earthquake scenarios. Key insights include optimal medical centre locations, required capacities, necessary medical staff and casualty allocation strategies, all vital for efficient disaster response within the critical first 72 h.

Originality/value

This study innovates by integrating stochastic programming and dynamic modelling to tackle post-disaster medical response. The use of a Markov Chain for uncertain health conditions and focus on the immediate aftermath of earthquakes offer practical value. By optimizing resource allocation amid uncertainties, the study contributes significantly to disaster management and HT research.

Details

Journal of Humanitarian Logistics and Supply Chain Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2042-6747

Keywords

Open Access
Article
Publication date: 6 June 2016

Anne M. Sanquini, Sundar M. Thapaliya and Michele M. Wood

The purpose of this paper is to apply social theory to the creation of a mass-media communications intervention designed to encourage earthquake-resistant construction in Nepal…

5184

Abstract

Purpose

The purpose of this paper is to apply social theory to the creation of a mass-media communications intervention designed to encourage earthquake-resistant construction in Nepal.

Design/methodology/approach

A three-step process was employed in this study: first, a narrative literature review was completed regarding the motivation of protective action. Second, key informant elicitation interviews with 15 community members at five public schools who supported making their buildings earthquake-resistant informed the script for a documentary film. Finally, the film was reviewed with stakeholders, plus 16 community members associated with a school in need of seismic work. Sociograms were used to determine relative closeness of the study participants to the film role models.

Findings

Motivating factors identified in the literature synthesis were included in the film, which focussed on effective actions taken by role models, and avoided the use of fear-based appeals. Key informant interviews yielded role-modeling details for the film script, including triggers and obstacles faced by the community members, and outcomes of their actions. Sociogram outcomes guided film editing and increased relative screen time for those community members with whom the study participants felt greater closeness. A pretest-posttest cluster randomized trial (details reported elsewhere) showed greater gains in knowledge, perceived outcome effectiveness, and intended behaviors among intervention film viewers than control participants.

Originality/value

This three-step process yielded the information required by a practitioner to develop a theory-based, culturally appropriate mass-media intervention designed to motivate reduction of disaster risk.

Details

Disaster Prevention and Management, vol. 25 no. 3
Type: Research Article
ISSN: 0965-3562

Keywords

Open Access
Article
Publication date: 22 June 2018

Tri Yumarni and Dilanthi Amaratunga

The purpose of this paper is to discuss policy-relevant findings regarding strategies for mainstreaming gender in achieving sustainable post-disaster reconstruction (PDR).

3128

Abstract

Purpose

The purpose of this paper is to discuss policy-relevant findings regarding strategies for mainstreaming gender in achieving sustainable post-disaster reconstruction (PDR).

Design/methodology/approach

An exploratory case study was used to explore the implementation of gender mainstreaming strategies and the link to sustainable PDR. The Bantul and Sleman regencies of Yogyakarta province provide a unique site for researching PDR as they are located in a region that is more strongly affected by earthquakes than nearly any other in Indonesia. Data were collected through interviews with 17 key stakeholders and 26 beneficiaries who were involved during and after the earthquake. To support the interview findings, surveys involving 50 policy makers and 150 beneficiaries were conducted. Content analysis and t-statistics were used in analyzing the data.

Findings

Gender mainstreaming strategies within sustainable reconstruction should incorporate strategies for protecting against gender vulnerabilities and for promoting gender capacities. Both are fundamental to the achievement of sustainable PDR.

Originality/value

The paper establishes comprehensive strategies for mainstreaming gender under three pillars (i.e. economic, social and environmental) of sustainable development. The findings benefit relevant policy makers by improving the policy performance of gender mainstreaming in the affected communities in enhancing sustainable PDR.

Details

Built Environment Project and Asset Management, vol. 8 no. 5
Type: Research Article
ISSN: 2044-124X

Keywords

Open Access
Article
Publication date: 7 October 2021

Luissa Vahedi, Sabine Lee and Susan A. Bartels

This paper aims to analyze the lived experience of seeking justice and reparations related to conceiving a peacekeeper-fathered child.

1231

Abstract

Purpose

This paper aims to analyze the lived experience of seeking justice and reparations related to conceiving a peacekeeper-fathered child.

Design/methodology/approach

Based on 18 semi-structured qualitative interviews conducted across Haiti in 2017, the authors mapped the experiences of Haitian mothers of peacekeeper-fathered children onto the ecological framework, proposing prevention/response strategies at the micro, meso and macro levels.

Findings

The findings mainly focus on reporting and access to support. Reporting was sometimes discouraged by the peacekeeper fathers due to the fear of being reprimanded. Among women who did report, some were told that nothing could be done, as the peacekeeper returned to his home country. Disclosure fatigue was common among participants who formally reported their pregnancies/peacekeeper-fathered children, particularly when promises of employment or child support failed to materialize. Overall, there was widespread distrust and disillusionment with the UN’s reporting and support system.

Originality/value

To improve the UN’s sexual abuse and exploitation prevention/response system at the micro level, the authors propose addressing personal knowledge/attitudes/beliefs through scenario-based and contextually relevant peacekeeper training and addressing the sexual/reproductive health needs of women and girls in proximity to peacekeeping bases. At the meso level, the UN should improve trust in reporting. Efforts to do so should include mandatory third-party deoxyribonucleic acid testing and banking, streamlined reporting mechanisms and removing the practice of automatically repatriating implicated peacekeepers. At the macro level, the authors recommend investments to improve educational and economic opportunities for women and girls, as well as revamping policies that contribute to impunity and absolve peacekeepers and troop-contributing countries of their responsibilities to provide child support.

Details

Journal of Aggression, Conflict and Peace Research, vol. 14 no. 1
Type: Research Article
ISSN: 1759-6599

Keywords

Open Access
Article
Publication date: 24 November 2023

Ornella Tanga Tambwe, Clinton Ohis Aigbavboa and Opeoluwa Akinradewo

Data represents a critical resource that enables construction companies’ success; thus, its management is very important. The purpose of this study is to assess the benefits of…

Abstract

Purpose

Data represents a critical resource that enables construction companies’ success; thus, its management is very important. The purpose of this study is to assess the benefits of construction data risks management (DRM) in the construction industry (CI).

Design/methodology/approach

This study adopted a quantitative method and collected data from various South African construction professionals with the aid of an e-questionnaire. These professionals involve electrical engineers, quantity surveyors, architects and mechanical, as well as civil engineers involved under a firm, or organisation within the province of Gauteng, South Africa. Standard deviation, mean item score, non-parametric Kruskal–Wallis H test and exploratory factor analysis were used to analyse the retrieved data.

Findings

The findings revealed that DRM enhances project and company data availability, promotes confidentiality and enhances integrity, which are the primary benefits of DRM that enable the success of project delivery.

Research limitations/implications

The research was carried out only in the province of Gauteng due to COVID-19 travel limitations.

Practical implications

The construction companies will have their data permanently in their possession and no interruption will be seen due to data unavailability, which, in turn, will allow long-term and overall pleasant project outcomes.

Originality/value

This study seeks to address the benefits of DRM in the CI to give additional knowledge on risk management within the built environment to promote success in every project.

Details

Journal of Engineering, Design and Technology , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1726-0531

Keywords

Open Access
Article
Publication date: 21 July 2020

Gonzalo Lizarralde, Holmes Páez, Adriana Lopez, Oswaldo Lopez, Lisa Bornstein, Kevin Gould, Benjamin Herazo and Lissette Muñoz

Few people living in informal settlements in the Global South spontaneously claim that they are “resilient” or “adapting” to disaster risk or climate change. Surely, they often…

2446

Abstract

Purpose

Few people living in informal settlements in the Global South spontaneously claim that they are “resilient” or “adapting” to disaster risk or climate change. Surely, they often overcome multiple challenges, including natural hazards exacerbated by climate change. Yet their actions are increasingly examined through the framework of resilience, a notion developed in the North, and increasingly adopted in the South. To what extent eliminate’ do these initiatives correspond to the concepts that scholars and authorities place under the resilience framework?

Design/methodology/approach

Three longitudinal case studies in Yumbo, Salgar and San Andrés (Colombia) serve to investigate narratives of disaster risks and responses to them. Methods include narrative analysis from policy and project documents, presentations, five workshops, six focus groups and 24 interviews.

Findings

The discourse adopted by most international scholars and local authorities differs greatly from that used by citizens to explain risk and masks the politics involved in disaster reduction and the search for social justice. Besides, narratives of social change, aspirations and social status are increasingly masked in disaster risk explanations. Tensions are also concealed, including those regarding the winners and losers of interventions and the responsibilities for disaster risk reduction.

Originality/value

Our findings confirm previous results that have shown that the resilience framework contributes to “depoliticize” the analysis of risk and serves to mask and dilute the responsibility of political and economic elites in disaster risk creation. But they also show that resilience fails to explain the type of socioeconomic change that is required to reduce vulnerabilities in Latin America.

Details

Disaster Prevention and Management: An International Journal, vol. 29 no. 6
Type: Research Article
ISSN: 0965-3562

Keywords

Open Access
Article
Publication date: 10 June 2021

Kelik Wardiono, Khudzaifah Dimyati and Absori Absori

This paper aims to synchronize the various constitutional regulations that regulate the natural disaster management in Indonesia, especially those which apply in the Yogyakarta…

1276

Abstract

Purpose

This paper aims to synchronize the various constitutional regulations that regulate the natural disaster management in Indonesia, especially those which apply in the Yogyakarta Special Territory after disaster through a legal interpretation and construction method to find a community empowerment-based disaster management model, which suits the Indonesian ideals of law.

Design/methodology/approach

This research is carried out in the Yogyakarta Special Territory province; this research uses the juridical normative method or the method with the doctrinal or the juridical normative approach. The approaches used in this research are the conceptual approach, statute approach and the sociological approach.

Findings

The numerous constitutional regulations that are formed and implemented to regulate the disaster management in Yogyakarta Special Territory cannot yet run its function as an integrating mechanism efficiently. This is mainly because the handling of disasters is usually responsive, without clear planning.

Research limitations/implications

In numerous constitutional regulations, there is a synchronization between the regulations on the society’s rights and responsibilities in disaster management. The point of these regulations is that they state that every citizen has the right to obtain social protection and a sense of safety. They have the right to obtain education, trainings and skills in the establishment of disaster management. Also, they have the right to participate in policies, in accessing information on disaster prevention policies.

Practical implications

Efforts of response toward a disaster should be neither exclusive nor partial. A condition of disaster is a complex condition, which usually asks for a holistic response from various perspectives and experiences. It needs effective teamwork between various institutional groups. Basically, it will not be effective if it is run by a single agency exclusively. Indonesia needs a clear disaster management and needs to synchronize the law for disaster mitigation for minimize the natural disaster impact.

Social implications

Various constitutional regulations made and applied to regulate disaster management in the Yogyakarta cannot yet run its function as an efficient integrating mechanism, as the law cannot yet undergo the rearrangement of the productive process in the society optimally. The goals determined in the execution of the disaster management are often not legitimized by the society, and they do not yet give a full sense of justice to them. Recovery after Yogyakarta earthquake is a slow process.

Originality/value

This is a relatively new research, as other researches focused on the disastrous impacts of the Yogyakarta earthquake. The disaster management system must consider and must be responsive toward diversity, differences and competition, which may arise due to social, economic, political, community and even religious factors. These differences often create a dynamic and complex relation. A wrong manner in handling this may cause horizontal conflicts.

Details

International Journal of Law and Management, vol. 63 no. 5
Type: Research Article
ISSN: 1754-243X

Keywords

Open Access
Article
Publication date: 22 August 2022

Annisa Triyanti, Gusti Ayu Ketut Surtiari, Jonatan Lassa, Irina Rafliana, Nuraini Rahma Hanifa, Mohamad Isnaeni Muhidin and Riyanti Djalante

This paper aims to identify key factors for a contextualised Systemic Risk Governance (SRG) framework and subsequently explore how systemic risks can be managed and how local…

2076

Abstract

Purpose

This paper aims to identify key factors for a contextualised Systemic Risk Governance (SRG) framework and subsequently explore how systemic risks can be managed and how local institutional mechanisms can be tweaked to deal with the complex Indonesian risk landscape.

Design/methodology/approach

Using a case study from Palu triple-disasters in Central Sulawesi, Indonesia, the authors demonstrate how inland earthquakes in 2018 created cascading secondary hazards, namely tsunamis, liquefactions and landslides, caused unprecedented disasters for the communities and the nation. A qualitative analysis was conducted using the data collected through a long-term observation since 2002.

Findings

The authors argue that Indonesia has yet to incorporate an SRG approach in its responses to the Palu triple-disasters. Political will is required to adopt more appropriate risk governance modes that promote the systemic risk paradigm. Change needs to occur incrementally through hybrid governance arrangements ranging from formal/informal methods to self- and horizontal and vertical modes of governance deemed more realistic and feasible. The authors recommend that this be done by focusing on productive transition and local transformation.

Originality/value

There is growing awareness and recognition of the importance of systemic and cascading risks in disaster risk studies. However, there are still gaps between research, policy and practice. The current progress of disaster risk governance is not sufficient to achieve the Sendai Framework for Disaster Risk Reduction (2015–2030) unless there is an effective governing system in place at the local level that allow actors and institutions to simultaneously manage the interplays of multi-hazards, multi-temporal, multi-dimensions of vulnerabilities and residual risks. This paper contributes to these knowledge gaps.

Details

Disaster Prevention and Management: An International Journal, vol. 32 no. 1
Type: Research Article
ISSN: 0965-3562

Keywords

Open Access
Article
Publication date: 13 January 2021

Francesca Giuliani, Rosa Grazia De Paoli and Enrica Di Miceli

The purpose of this paper is to present and validate a large-scale methodology for risk assessment and management in cultural heritage sites, taking into account their specific…

2805

Abstract

Purpose

The purpose of this paper is to present and validate a large-scale methodology for risk assessment and management in cultural heritage sites, taking into account their specific tangible or intangible values. Emphasis is given to historic centres that are key resources in building resilience to disasters but are also highly vulnerable due to several factors, such as the characteristics of the built environment, the community and social life, the lack of risk awareness and maintenance and finally the poor regulatory framework for their management and valorisation.

Design/methodology/approach

The multi-step procedure starts from the assessment of the attributes of cultural heritage in order to identify priorities and address the analysis. Then, it evaluates the primary and secondary hazards in the area, the vulnerabilities and threats of the site and the impacts of the chain of events. Finally, it allows for calibrating a site-specific set of mitigation, preparedness, response and recovery measures.

Findings

The application to two case studies in the Italian peninsula, the historic centres of San Gimignano and Reggio Calabria, allows for identifying research gaps and practical opportunities towards the adoption of common guidelines for the selection of safety measures.

Originality/value

By providing a qualitative assessment of risks, the research points out the potentialities of the methodology in the disaster risk management of cultural heritage due to its capacity to be comprehensive and inclusive towards disciplines and professionals.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. 11 no. 4
Type: Research Article
ISSN: 2044-1266

Keywords

1 – 10 of 216