• Title/Summary/Keyword: Disaster impact factor

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The Impact of the Government's Earthquake Disaster Response Capabilities and the Legal and Institutional Appropriateness of the Disaster Management System on the Operational Performance of Disaster Management : Focused on Fire Officer's Consciousness (정부의 지진재난 대응역량과 재난관리체계의 법·제도적 적절성이 재난관리 운영성과에 미치는 영향 : 소방공무원의 인식을 중심으로)

  • Youn, SeokMin
    • Journal of the Society of Disaster Information
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    • v.16 no.2
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    • pp.318-330
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    • 2020
  • Purpose: In this study, the effect of the government's disaster response capabilities and the legal and institutional appropriateness of the disaster management system on the operational performance of disaster management performance were verified. Method: Questionnaire survey was performed for the fire officials, and the surveyed data was statistically analyzed by using SPSS 25.0 program. Result: The main results of this study are as follows. First, the government's earthquake disaster response capability is found to have a significant effect on disaster follow-up management as well as disaster prevention preparation, which is a factor in disaster management performance. Second, it has been shown that the legal and institutional appropriateness of the earthquake disaster management system has a significant impact on disaster follow-up management as well as disaster prevention preparation, which is a factor of disaster management performance. Conclusion: The important policy implications for improving the operation performance of disaster management could be obtained in preparation for earthquakes in Korea.

Establishment of Evaluation System for Disaster Resilience Focusing on the Local Road under Complex Disaster (복합재해 발생 예상 시 지방도로 중심의 재난 레질리언스 평가체계 구축)

  • Kim, Young-Hwan;Jun, Kye-Won
    • Journal of Korean Society of Disaster and Security
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    • v.13 no.4
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    • pp.37-46
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    • 2020
  • Although the importance of resilience is emerging around the world, the single definition of resilience related to natural disasters is not clear. The reason for this is that there is no specific definition of how the definition of resilience relates to similar terms such as vulnerability, recovery, adaptability, and sustainability. In addition, it is because each country and region have different geographic and geological characteristics, and each measurement index is different, just as typhoons, droughts, and earthquakes have different types of disasters. Therefore, in this study, the definition of resilience is reflected in the spatial characteristics of this study as the ability to recover from'complex disasters (concentrated heavy rain, landslides, earth and stone flows) occurring on local roads or on local roads adjacent to people or facilities. Defined. And it was divided into DRR: Disaster Resilience focusing on the Road. In addition, domestic and foreign literature surveys were conducted to derive road-centered disaster resilience factors, and a hierarchical structure was established and AHP survey was conducted to establish a DRR evaluation system. As a result of the analysis of the AHP survey, the weight of direct road disaster influencing factors (drainage facilities, protection facilities, etc.) located inside local roads was 0.742, and the weight of indirect road disaster influencing factors (population, property, etc.) located near local roads. Was found to be 0.258, indicating that the direct impact factor of road disaster was relatively higher than that of the indirect impact factor.

Analysis of the potential landslide hazard after wildfire considering compound disaster effect (복합재해 영향을 고려한 산불 후 산사태 잠재적 피해 위험도 분석)

  • Lee, Jong-Ook;Lee, Dong-Kun;Song, Young-Il
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.22 no.1
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    • pp.33-45
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    • 2019
  • Compound disaster is the type that increases the impact affected by two or more hazard events, and attention to compound disaster and multi-hazards risk is growing due to potential damages which are difficult to predict. The objective of this study is to analyze the possible impacts of post-fire landslide scenario quantitatively by using TRIGRS (Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Analysis), a physics-based landslide model. In the case of wildfire, soil organic material and density are altered, and saturated hydraulic conductivity decrease because of soil exposed to high temperature. We have included the change of soil saturated hydraulic conductivity into the TRIGRS model through literature review. For a case study, we selected the area of $8km^2$ in Pyeongchang County. The landslide modeling process was calibrated before simulate the post-wildfire impact based on landslide inventory data to reduce uncertainty. As a result, the mean of the total factor of safety values in the case of landslide was 2.641 when rainfall duration is 1 hour with rainfall intensity of 100mm per day, while the mean value for the case of post-wildfire landslide was lower to 2.579, showing potential landslide occurrence areas appear more quickly in the compound disaster scenario. This study can be used to prevent potential losses caused by the compound disaster such as post-wildfire debris flow or landslides.

A Study on the Analysis Method of Safety Cost of Tunnel Accident (터널사고 재난 안전비용 분석 방법에 관한 연구)

  • Baek, Chung-Hyun
    • Journal of the Korea Safety Management & Science
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    • v.23 no.1
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    • pp.23-30
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    • 2021
  • This paper analyzed a survey of 388 general target samples to analyze the correlation between disaster safety costs and human risk factor analysis and evacuation behavior due to tunnel accidents. Considering the impact of the tunnel accident on disaster safety costs and the correlation between human evacuation and risk factors in the tunnel environment, the system should be reorganized to reflect the tunnel's basic plan, tunnel cross-section, tunnel installation.

A study on development of disaster-risk assessment criteria for steep slope -Based on the cases of NDMS in Ministry of Interior and Safety- (급경사지 재해위험도 평가 기준 개선 방안 연구 -행정안전부 급경사지 관리시스템 사례를 중심으로-)

  • Suk, Jae-Wook;Kang, Hyo-Sub;Jeong, Hyang-Seon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.9
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    • pp.372-381
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    • 2019
  • In this study, the National Disaster Management System (NDMS) was analyzed to evaluate the disaster impact assessment standards for steep slopes. Problems in the assessment methods and systems were discovered, which could be reasons for poor reliability. The disaster-risk evaluation index needs improvement to evaluate various types of retaining walls, such as concrete/reinforced soil walls and reinforcing stone masonry. Additionally, using the same score for overturning, bulging, and efflorescence could be reasons for poor reliability, and different weighting factors are needed. Assessment methods are needed to subdivide the social influence evaluation index while considering environmental conditions of steep slopes, such as railroads and reservoirs. For the evaluation of steep slopes, standards for start and end points of steep slopes should be created for effective management, and disaster impact assessment needs to be performed after redevelopment from an advanced index for protection and reinforcement. These problems were derived from a current evaluation system, so a disaster impact assessment is necessary to supplement the results of this study.

A Content Analysis of Disaster Nursing Education in Korean and Japanese Universities (한국과 일본 대학의 재난간호교육 내용분석)

  • Han, Suk Jung;Cho, Chung Min;Lee, Young Ran;Nagasaka, Kaori;Izummune, Mie;Lee, Sang Bok;Lee, Ji Hye
    • Research in Community and Public Health Nursing
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    • v.30 no.3
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    • pp.307-323
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    • 2019
  • Purpose: The purpose of this study is to analyze the contents of disaster nursing education at universities in Korea and Japan, with focus on textbooks. Methods: Disaster nursing contents from 11 Korean community health nursing textbooks and 3 Japanese disaster nursing textbooks were analysed. Results: Three themes and 8 categories of disaster nursing content in the selected textbooks were analyzed. The themes classified include 'understanding of disaster', 'disaster management' and 'disaster management system'. The theme of 'understanding of disaster' consists of such categories as 'disaster concept/outline', 'classification of disaster', 'disaster management step' and 'disaster impact'. The theme of 'disaster management activities' consists of categories such as 'disaster management activities' and 'disaster nursing'. The theme of 'national disaster management system' consists of categories like 'national disaster management system' and 'international disaster relief'. From the comparison of disaster nursing education in the two countries, we found that themes were similar but there were differences between the two countries in content configuration. Korea and Japan have adopted the framework of International Council of Nurses for disaster nursing education. Korea stressed legal and ethical capabilities, while Japan included psychological support for disaster management service providers. Conclusion: Disaster education is an important factor in a nurse's ability for a disaster management. Development of a comprehensive disaster education program is necessary to enhance disaster care capacities.

Study on the size reduction factor of extreme wind pressure of facade cladding of high-rise buildings with square section

  • Xiang Wang;Yong Quan;Zhengwei Zhang;Ming Gu
    • Wind and Structures
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    • v.36 no.1
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    • pp.41-60
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    • 2023
  • The effect of cladding panel size on the size reduction factor (SRF) of extreme area-averaging wind pressure (EAWP) on the facades of a high-rise building is often ignored in previous studies. Based on wind tunnel tests, this study investigated the horizontal and vertical correlations of wind pressure on the facade claddings of square-section high-rise buildings. Then, the influencing parameters on the SRF of the EAWP on the cladding panels were analyzed, which were the panel area, panel width, panel length and building width. The results show clear regional distinctions in the correlation of wind pressures on the building facades and the rules of the horizontal and vertical correlations are remarkably different, which causes the cladding size ratio to impact the SRF significantly. Therefore, this study suggests the use of the non-dimensional comprehensive size parameter b𝜶h1-𝜶/B (𝜶 is the fitting parameter) determined by the cladding panel horizontal size b, cladding panel vertical size h and the building width B rather than the cladding panel area to describe the variation of the EAWP. Finally, some empirical formula for the SRF of the EAWP on the cladding of a high-rise building is proposed with the nondimensional comprehensive size parameter.

A Study on Estimation of Road Vulnerability Criteria for Vehicle Overturning Hazard Impact Assessment (차량 전도 위험 영향 평가를 위한 도로 취약성 기준 산정에 관한 연구)

  • Kyung-Su Choo;Dong-Ho Kang;Byung-Sik Kim;In-Jae Song
    • Journal of Korean Society of Disaster and Security
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    • v.16 no.2
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    • pp.49-56
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    • 2023
  • Impact based forecast refers to providing information on potential socioeconomic risks according to weather conditions, away from the existing weather factor-oriented forecast. Developed weather countries are investing manpower and finances in technology development to provide and spread impact information, but awareness of impact based forecasts has not spread in Korea. In addition, the focus is on disasters such as floods and typhoons, which cause a lot of damage to impact based forecasts, and research on evaluating the impact of vehicle risks due to strong winds in the transportation sector with relatively low damage is insufficient. In Korea, there are not many cases of damage to vehicle conduction caused by strong winds, but there are cases of damage and the need for research is increasing. Road vulnerability is required to evaluate the risk of vehicles caused by strong winds, and the purpose of this study was to calculate the criteria for road vulnerability. The road vulnerability evaluation was evaluated by the altitude of the road, the number of lanes, the type of road. As a result of the analysis, it was found that the vulnerable area was well reproduced. It is judged that the results of this study can be used as a criterion for preparing an objective evaluation of potential risks for vehicle drivers.

Impact Assessment of Climate Change on Disaster Risk in North Korea based on RCP8.5 Climate Change Scenario (RCP8.5 기후변화시나리오를 이용한 기후변화가 북한의 재해위험에 미치는 영향 평가)

  • Jeung, Se-Jin;Kim, Byung-Sik;Chae, Soo Kwon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.38 no.6
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    • pp.809-818
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    • 2018
  • In this paper, in order to evaluate the impact of future climate change in North Korea, we collected the climate data of each station in North Korea provided by WMO and expanded the lack of time series data. Using the RCP climate change scenario, And the impact of climate change on disasters using local vulnerability to disasters in the event of a disaster. In order to evaluate this, the 11 cities in North Korea were evaluated for Design Rainfall Load, human risk index (HRI), and disaster impact index (DII) at each stage. As a result, Jaffe increased from C grade to B grade in the Future 1 period. At Future 2, North Hwanghae proved to be dangerous as it was, and Gangwon-do and Hwanghae-do provincial grade rose to C grade. In the case of Future 3, Pyongyang City dropped from C grade to D grade, Hamgyong and Gyeongsang City descend from B grade to C grade, Gangwon-do and Jagangdo descend from C grade to D grade and Pyongyang city descend from C grade to D grade. Respectively.

Derivation of risk factors according to accident cases related to subway structures

  • Park, Hyun Chul;Park, Young Gon;Pyeon, Mu Wook;Kim, hyun ki;Yoon, Hee Taek
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.39 no.5
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    • pp.329-341
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    • 2021
  • This study derives the risk-Influence factors for subway structures, the basis for the transition from the current subway disaster recovery-oriented maintenance system to a preemptive disaster management system, to reduce risk factors for existing subway structures. To apply reasonable risk assessment techniques, risk influence factors for subway underground structures using statistical information(spatial information) and risk influence factors according to frequency of accidents were selected to derive the risk factors. The significant risk factors were verified through ground subsidence (SI: Subsidence Impact)-based correlation analysis. This process confirmed that the subsidence of the ground was a risk influence factor for the subway structure. The main result of this study is that derive the risk factors to improve the risk factors of subway structures due to the rapid increase in disaster risk factors. The derived risk factors that were expected to affect the depression around subway stations and track structures did not show a noticeable correlation, but the cause of this may be that there is no physical connection between them, but on the other hand, the accumulated data may not accurately record the surrounding depression. Accordingly, in order to evaluate the risk of depression around the station and track, more intensive observation and data accumulation around the structure are required.