International journal of disaster risk reduction最新文献_第4页

The Norwegian closedown during the COVID-19 pandemic: Crisis maneuverability and uncontrol 2019冠状病毒病大流行期间挪威关闭：危机可操作性和失控

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-15 DOI: 10.1016/j.ijdrr.2025.105705

André R. Karlsen PhD

{"title":"The Norwegian closedown during the COVID-19 pandemic: Crisis maneuverability and uncontrol","authors":"André R. Karlsen PhD","doi":"10.1016/j.ijdrr.2025.105705","DOIUrl":"10.1016/j.ijdrr.2025.105705","url":null,"abstract":"<div><div>COVID-19 is one of the deadliest crises in modern times, having infected and caused deaths to millions. Despite a long history of managing pandemics, COVID-19 revealed gaps in our crisis management knowledge. A crisis is a serious threat to the fundamental values and norms of a system, demanding critical decisions under time pressure and highly uncertain circumstances. Yet, as investigations in Norway indicate, it was the perceived loss of control, rather than the characteristics of a crisis that defined the pandemic as a crisis. This paper aims to study losing control in relation to pandemics, and what it means for crisis management. The data used to answer this were gathered from the COVID-19 management that culminated in Norwegian national lockdown March 12th, 2020. Through a thematic analysis, I present some ‘strains’ of losing control: the findings are that the ‘nexus’ of our worries in losing control relates to uncertainty, criticality and urgency. For example, the lacking data for modeling the virus. Further, this is coupled with an acknowledgement that there are things we want to protect. For example, when the system that protects health and well-being is being pressured, it can lead to a sense of lacking control over the situation. I conceptualize that the core of the problem with losing control is an experience of decreasing ‘crisis maneuverability’, and then how it makes sense to talk about degrees of ‘uncontrol’ to explain what makes us recognize when a threat becomes a crisis.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105705"},"PeriodicalIF":4.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic assessment of non-engineered incrementally constructed unreinforced masonry infilled RC frames considering material variability 考虑材料变异性的非工程增量建造无加筋砌体填充RC框架抗震评估

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-14 DOI: 10.1016/j.ijdrr.2025.105703

Dirsa Feliciano , Daniela Novoa , Orlando Arroyo , Julian Carrillo , Abbie Liel , Carlos Montes , Ricardo Bonett

{"title":"Seismic assessment of non-engineered incrementally constructed unreinforced masonry infilled RC frames considering material variability","authors":"Dirsa Feliciano , Daniela Novoa , Orlando Arroyo , Julian Carrillo , Abbie Liel , Carlos Montes , Ricardo Bonett","doi":"10.1016/j.ijdrr.2025.105703","DOIUrl":"10.1016/j.ijdrr.2025.105703","url":null,"abstract":"<div><h3>In many <em>low</em></h3><div>and middle-income countries, over half of the buildings are non-engineered structures, often including unreinforced masonry (URM) infilled with reinforced concrete (RC) frames, which often have poor seismic detailing. These buildings are typically built incrementally, leading to variations in structural systems and material quality, which result in poor seismic behavior. This study investigates the seismic performance of these buildings through a case study of a building incrementally constructed in two stages in Colombia's Sabana Centro region. The structure's system and building materials were identified through field observations. Based on these observations, representative models were developed for each construction stage. Material variability was accounted for through Latin Hypercube Sampling, using local material data to develop 150 models for each construction stage. Nonlinear dynamic analysis was performed using OpenSeesPy with FEMA P695 seismic records. Fragility curves detailing four damage states (slight, moderate, extensive, and collapse) were analyzed for damage probabilities and expected losses. Fragility curves, including uncertainties in material properties, were also evaluated, and the impact on seismic fragility using mortar and chicken wire mesh as a retrofitting technique was analyzed. Results showed that the collapse probability at the Maximum Considered Earthquake (MCE) is 42 % for the first stage and increases to 56 % for the second. Material properties strongly influence these probabilities, ranging from 32 % to 50 % for the first stage and 55 %–68 % for the second. Expected losses exceeded 50 % for both stages. Retrofitting significantly reduced the collapse probability, from 47 % to 5 % at the MCE level.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105703"},"PeriodicalIF":4.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rethinking the agricultural use of fire and its influence on the occurrence of wildfire in high Andean communities of Cusco, Peru 重新思考火的农业利用及其对秘鲁库斯科安第斯高山社区野火发生的影响

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-14 DOI: 10.1016/j.ijdrr.2025.105702

Sigrid Alvarez , Alejandra G. Martínez , Ricardo Zubieta , Yerson Ccanchi

{"title":"Rethinking the agricultural use of fire and its influence on the occurrence of wildfire in high Andean communities of Cusco, Peru","authors":"Sigrid Alvarez , Alejandra G. Martínez , Ricardo Zubieta , Yerson Ccanchi","doi":"10.1016/j.ijdrr.2025.105702","DOIUrl":"10.1016/j.ijdrr.2025.105702","url":null,"abstract":"<div><div>The use of fire in agriculture has been a fundamental practice since early human societies, playing a key role in land preparation, weed control, and soil fertility management. In the Peruvian Andes, fire remains widely employed by rural communities, despite strict legal prohibitions aimed at reducing wildfire occurrence. However, statistical evidence demonstrates that these punitive policies have failed to curb wildfires, which have instead increased in frequency. This study critically examines the agricultural use of fire in high Andean communities of Cusco, Peru, exploring its socio-cultural, economic, and environmental dimensions.</div><div>Through ethnographic research and qualitative methodologies, the study identifies the motivations behind fire use, traditional fire-management practices, local and institutional perceptions, and community responses to wildfires. Findings reveal that fire is an indispensable agricultural tool, deeply embedded in rural livelihoods. The study also highlights the inadequacy of current fire management policies, which rely primarily on prohibition and emergency response without offering viable alternatives for smallholder farmers.</div><div>To address this gap, the study proposes a paradigm shift in fire governance, advocating for a more inclusive and sustainable approach. Key recommendations include integrating prescribed burning, implementing incentive-based compensation schemes, and strengthening local governance structures. Additionally, the study underscores the necessity of qualitative research in informing quantitative analyses of wildfire occurrence, ensuring that policy interventions are grounded in local realities. Ultimately, rethinking the agricultural use of fire is not only an environmental concern but also a social and economic imperative for high Andean communities.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105702"},"PeriodicalIF":4.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beyond field surveys: Understanding the role of 3D spatial attributes for data-driven blast vulnerability assessment of masonry buildings 超越现场调查：了解三维空间属性在数据驱动的砌体建筑爆炸脆弱性评估中的作用

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-13 DOI: 10.1016/j.ijdrr.2025.105672

Joe Kallas, Rebecca Napolitano

{"title":"Beyond field surveys: Understanding the role of 3D spatial attributes for data-driven blast vulnerability assessment of masonry buildings","authors":"Joe Kallas, Rebecca Napolitano","doi":"10.1016/j.ijdrr.2025.105672","DOIUrl":"10.1016/j.ijdrr.2025.105672","url":null,"abstract":"<div><div>Unreinforced masonry (URM) buildings are highly vulnerable to blast loads, yet traditional post-disaster assessments often fail to capture important geometric and spatial attributes that govern structural behavior. This study leverages high-resolution 3D digital modeling and machine learning (ML) to extract and evaluate the predictive power of spatial features across 2042 historic URM buildings damaged in the 2020 Beirut explosion. By integrating 3D-derived attributes, including building orientation, aspect ratio, and façade opening ratio, into a supervised ML framework, we achieved over 90% accuracy in damage prediction. Unlike prior studies based on simulations or small-scale experiments — typically focused on seismic loading — this work offers a novel, empirical analysis of geometric predictors at urban scale under real-world blast conditions. This analysis reveals that while features like roof type and cladding (often prioritized in cultural heritage documentation) show negligible predictive value, urban morphology and building geometry emerge as dominant drivers of blast vulnerability. These findings provide real-world, physics-driven guidance for computational simulations, highlighting the need to prioritize 3D geometric interactions rather than material properties alone in blast modeling. For post-disaster reconnaissance, the results advocate rethinking field protocols to document orientation, opening distribution, and urban shielding effects, attributes previously overlooked but now shown to govern structural resilience. This workflow shifts from descriptive damage inventories to predictive, data-driven vulnerability assessments.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105672"},"PeriodicalIF":4.2,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supporting “Build Back Better” in historical towns: a novel methodology to include users’ exposure and vulnerability in strategic function relocation assessment 支持历史城镇“更好地重建”：在战略功能搬迁评估中纳入用户暴露和脆弱性的新方法

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-12 DOI: 10.1016/j.ijdrr.2025.105700

Enrico Quagliarini , Gabriele Bernardini , Luca Domenella , Giovanni Marinelli

{"title":"Supporting “Build Back Better” in historical towns: a novel methodology to include users’ exposure and vulnerability in strategic function relocation assessment","authors":"Enrico Quagliarini , Gabriele Bernardini , Luca Domenella , Giovanni Marinelli","doi":"10.1016/j.ijdrr.2025.105700","DOIUrl":"10.1016/j.ijdrr.2025.105700","url":null,"abstract":"<div><div>Applying ‘Build Back Better’ (BBB) principles to Historical Urban Built Environments (HUBEs) means balancing sustainable structural and non-structural strategies with revitalization and preservation tasks, by addressing multiple risk factors. Among them, user exposure (“how many people?”) and vulnerability (“of which typology?”) can describe how the HUBE and its composing parts can be attractive depending on their functions, also impacting potential damage and losses. Relocating strategic functions can directly impact these factors, being strictly linked with urban policies. Existing approaches try to quantify user factors over space and time, but operational implications for decision-makers seem to be still limited. This work aims to develop a methodological framework to evaluate the multi-scale impact of function relocation in HUBEs assessing users' vulnerability and exposure at the: (1) macroscale, to evaluate if relocation can benefit the whole HUBE safety; (2) mesoscale (open space-related), to identify critical “hot-spots” in the HUBE. The framework is showcased on a significant earthquake-prone Italian HUBE. In particular, validated methodologies exploiting geospatial tools are used to generate typical use scenarios (i.e. daytime, night-time, holidays), aggregating micro-scale inputs on indoor and outdoor functions at meso/macroscales. User factors metrics are derived to compare current and relocation scenarios on selected buildings. Results demonstrate the framework capabilities in quantifying relocation impacts at the considered scales, thus providing valuable support to urban planning practices. Its implementation in decision-support systems would enable dynamic monitoring of urban development policies, prioritizing risk-reduction over space, and focusing interventions on physical vulnerability where user factors impact increases.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"127 ","pages":"Article 105700"},"PeriodicalIF":4.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the spatiotemporal knowledge-driven vulnerability assessment of urban areas: A clustering-based approach 基于聚类的时空知识驱动的城市脆弱性评价研究

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-12 DOI: 10.1016/j.ijdrr.2025.105681

João Carlos N. Bittencourt , Daniel G. Costa , Paulo Portugal , Maycon L.M. Peixoto , Francisco Vasques

{"title":"On the spatiotemporal knowledge-driven vulnerability assessment of urban areas: A clustering-based approach","authors":"João Carlos N. Bittencourt , Daniel G. Costa , Paulo Portugal , Maycon L.M. Peixoto , Francisco Vasques","doi":"10.1016/j.ijdrr.2025.105681","DOIUrl":"10.1016/j.ijdrr.2025.105681","url":null,"abstract":"<div><div>In recent years, there has been a notable increase in the implementation of emergency management digital solutions. While these systems are becoming increasingly prevalent in cities, they must be properly set up and adopted based on a comprehensive understanding of the spatiotemporal dynamics of urban areas. This study aims to develop and validate the VERUS (Vulnerability Evaluation for Resilient Urban Systems), a spatiotemporal clustering framework for assessing urban vulnerability based on the dynamic influence of urban infrastructures during emergencies, indicating how populations are negatively affected based on the existing urban dynamics. For that, a holistic and adaptive urban perspective is adopted centred on the influence of selected groups of PoTIs (Points of Temporal Influence). Moreover, instead of considering static influence, it also incorporates the fluctuating impact of each PoTI throughout time windows. The proposed clustering method divides the urban area into influence clusters to assess the vulnerabilities within their boundaries, taking as input open geospatial datasets like OpenStreetMap. To effectively address the issue of defining the optimal number of clusters, we evaluate various methods and suggest a combination of OPTICS and K-means to provide a reliable and adaptable clustering definition without the need for parameter adjustments. Experimental results in the cities of Porto, Lisbon, and Paris demonstrate its adaptability to diverse urban configurations, illustrating its practical feasibility by revealing varying levels of vulnerability. These insights emphasise its potential to inform knowledge-driven smart city systems, where tailored interventions can address the unique challenges of different urban environments.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"127 ","pages":"Article 105681"},"PeriodicalIF":4.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Between skepticism and solutions: The institutionalization of cash assistance in Nepal's disaster response 在怀疑与解决方案之间：尼泊尔救灾现金援助的制度化

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-12 DOI: 10.1016/j.ijdrr.2025.105699

Prabin Sharma , Elyse Zavar

{"title":"Between skepticism and solutions: The institutionalization of cash assistance in Nepal's disaster response","authors":"Prabin Sharma , Elyse Zavar","doi":"10.1016/j.ijdrr.2025.105699","DOIUrl":"10.1016/j.ijdrr.2025.105699","url":null,"abstract":"<div><div>This case study examines the effectiveness of cash programming in supporting the recovery of Nepali households after disasters, based on interviews with 17 humanitarian practitioners experienced in cash and voucher assistance (CVA) in Nepal since the 2015 earthquakes. We align this evolution with different humanitarian aid theories to showcase how theory and practice have changed over time in Nepal. The study found that, despite facing challenges, cash programming was perceived as more efficient and effective than traditional aid due to its ability to empower recipients, enhance transparency, and reduce administrative burdens. Key challenges identified include government skepticism, limited stakeholder coordination, and barriers to financial inclusion. The study also spotlights the evolution of cash programming in Nepal from emergency response to development programming with a shift from cash envelopes to digital technologies. The study highlights the need to strengthen national-level disaster risk reduction and management frameworks to improve the effectiveness of cash programming in disaster recovery. It recommends investing in anticipatory action, fostering strong government support, and developing robust institutional frameworks to maximize the potential of cash programming as a recovery tool. By drawing on lessons learned from Nepal, the findings provide actionable insights for other countries facing similar challenges in disaster recovery offering strategies to better utilize cash transfers in building resilience and responding to disasters effectively. Ultimately, this study contributes to humanitarian scholarship by illustrating how cash programming is progressively shaping Nepal's disaster response landscape, offering critical insights into its potential for long-term integration within national systems and the broader humanitarian-development nexus.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105699"},"PeriodicalIF":4.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Disaster education: Do manga materials based on the overlooked concept of postevacuation behaviors affect selective attention in people returning immediately after a major earthquake to evacuated buildings posing Natech risks? 灾难教育：基于被忽视的疏散后行为概念的漫画材料是否会影响人们在大地震后立即返回具有Natech风险的疏散建筑的选择性注意力？

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-11 DOI: 10.1016/j.ijdrr.2025.105701

Yusuke Koshiba , Ryo Saito

{"title":"Disaster education: Do manga materials based on the overlooked concept of postevacuation behaviors affect selective attention in people returning immediately after a major earthquake to evacuated buildings posing Natech risks?","authors":"Yusuke Koshiba , Ryo Saito","doi":"10.1016/j.ijdrr.2025.105701","DOIUrl":"10.1016/j.ijdrr.2025.105701","url":null,"abstract":"<div><div>Buildings where hazardous materials (e.g., flammable, oxidizing, toxic, and asphyxiating chemicals) are stored and handled differ from general buildings. Such buildings are susceptible to natural hazard–triggered technological disasters (Natechs), including fires, explosions, poisoning, and asphyxiation. Previous studies have found that most individuals prefer to re-enter evacuated buildings that do not appear damaged. However, unsafe re-entry into buildings with hazardous materials immediately following major earthquakes poses significant risks, potentially placing the lives of those that survived the main shock at risk. This study probed the effectiveness of manga-based educational materials on selective attention immediately following major earthquakes, focusing on re-entry into buildings where hazardous materials were stored and handled. A survey was administered to 878 Japanese undergraduate and graduate university students that collected their demographic information, focusing on the respondents’ attention priorities during their re-entry. The results showed that most participants who re-entered evacuated buildings focused primarily on items and/or events such as falling objects and ceilings that were associated with seismic activity before reading educational materials. Moreover, participants continued to direct their attention to hazardous materials in the buildings after reading the materials. The participants who read manga-based materials demonstrated greater attention to hazardous materials than those who read text-based materials conveying equivalent content. These findings support the development of effective disaster education materials relating to facilities that store and handle hazardous materials, significantly reducing Natechs-associated risks.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105701"},"PeriodicalIF":4.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tales and plays in the flames: How stories and theatrics converge fire disaster knowledge and action in marginalized contexts 火焰中的故事和戏剧：故事和戏剧如何在边缘环境中融合火灾知识和行动

IF 4.5 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-10 DOI: 10.1016/j.ijdrr.2025.105676

Beatrice Hati

{"title":"Tales and plays in the flames: How stories and theatrics converge fire disaster knowledge and action in marginalized contexts","authors":"Beatrice Hati","doi":"10.1016/j.ijdrr.2025.105676","DOIUrl":"10.1016/j.ijdrr.2025.105676","url":null,"abstract":"<div><div>Traditional disaster epistemologies are significantly limited in reflecting and confronting the intricate realities of everyday disasters. Technocratic voices are too often privileged while indigenous praxis and ways of knowing are subordinated and critical nuances overlooked. A holistic understanding of everyday disasters and how they are governed in their inherently complex and multifaceted nature demands that we inquire differently. Drawing from a post-structural community-based participatory research, this paper confronts this gap by exploring how storytelling and participatory theatre diversify disaster knowledge and accelerate disaster risk reduction at the grassroots. The paper discusses the theoretical frontiers and individual applications of these tools, makes a case for their combined value prospects, and empirically integrates them to investigate fire disaster governance arrangements in underserved urban poor communities in Nairobi, Kenya. The findings demonstrate how this methodological convolution enriched understanding of everyday fire disasters, fostered transformative learning, and stimulated collective fire disaster risk reduction at the grassroots. The analysis is presented alongside a critical self-reflection discussing how the approach transformed positions of both the researcher and participants in the study. Integration of these participatory tools offers multiple value possibilities through diversity of knowledges, convergence of voices, fluid research identities, and collaborative praxis pathways. The paper contributes academic insights on deepening disaster knowledge whilst elevating research experiences and catalyzing societal change. It further offers pragmatic solutions to embrace all-of-society and all-of-knowledge approaches towards disaster risk governance.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"128 ","pages":"Article 105676"},"PeriodicalIF":4.5,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Instance segmentation techniques for seismic building structural type estimation from remote sensing imagery – Evidence from Xi'an city, China 基于遥感影像的地震建筑结构类型估计实例分割技术——来自中国西安市的证据

IF 4.2 1区地球科学

International journal of disaster risk reduction Pub Date : 2025-07-10 DOI: 10.1016/j.ijdrr.2025.105686

You Xuan , Christian Geiß , Huandong Mu , Dexin Niu , Bojia Guo , Yahong Deng

{"title":"Instance segmentation techniques for seismic building structural type estimation from remote sensing imagery – Evidence from Xi'an city, China","authors":"You Xuan , Christian Geiß , Huandong Mu , Dexin Niu , Bojia Guo , Yahong Deng","doi":"10.1016/j.ijdrr.2025.105686","DOIUrl":"10.1016/j.ijdrr.2025.105686","url":null,"abstract":"<div><div>Collecting exposure information for seismic risk assessment if frequently a labor-intensive and costly aspect. This study reveals the potential of automatically determining Seismic Building Structure Types (SBSTs) utilizing remote sensing imagery and instance segmentation models. A comprehensive process is introduced, which encompasses (i) data acquisition from remote sensing imagery; (ii) compilation of training data for subsequent supervised model learning, including clipping, resizing, zero-padding, labeling, and augmentation; (iii) and supervised model learning using the YOLO Series. Regarding the latter, we implement a set of seventeen pretrained models from YOLOv5, v7, v8 and v11 and provide an exhaustive experimental evaluation. The ancient Xi'an city wall is employed as the research area to evaluate the models' classification accuracy based on the buildings within it. The findings are as follows: A relatively larger model size and better adaptability of the model to the task lead to better performance in instance segmentation, allowing YOLOv7x-seg to outperform other models. By comparison, the mean average precision value for singular tasks, such as height and material instance segmentation, surpasses that of the comprehensive task, i.e., SBST instance segmentation, with effectiveness increasing from SBST, to height, and finally, to material. From an application standpoint, the models effectively identify buildings across various urban layouts, including buildings in open scenes, regularly arranged structures, and dense, irregularly arranged developments. However, the models still occasionally exhibit instances of missed detections or false positives. Nevertheless, our work underlines the great potential for a rapid assessment of crucial seismic exposure properties in complex built environments.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"127 ","pages":"Article 105686"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0