• Title/Summary/Keyword: Urban disaster prevention

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Urban Design Case Review for Mitigation of Sediment Disaster and its Application in Korea (토사재해 저감 도시설계 사례검토 및 국내 적용방안 연구)

  • Lee, Yoon-Sang;Kim, Hyo-Jin;Jin, Kyu-Nam
    • Land and Housing Review
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    • v.8 no.3
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    • pp.201-210
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    • 2017
  • Recently, as a part of measures against large-scale natural disasters in Korea, disaster prevention matters are strengthened in urban planning. With the introduction of the disaster vulnerability analysis system, plans for disaster prevention are being reinforced in urban planning. However, there are many problems to be solved at the stage of operation and practical application of the law. When disasters occur, we are focusing on response and recovery plans. Therefore, it is not enough to construct a comprehensive disaster prevention system to prevent disasters in advance. The established disaster prevention plan is difficult to plan management centered on disaster prevention due to factors such as economic efficiency, convenience, and comfort. This study is a basic study for supporting disaster prevention mitigation plan. For this purpose, the analysis of the actual situation of disaster prevention plan at home and abroad and improvement plan were derived. ased on these improvement plans, we have developed a method to apply the element technology of urban design to the test bed to reduce sediment disaster. The test bed was investigated and examined in the disaster hazard area of Busan and Seongnam city. And the defense technology is applied to the selected site, and the basis of the disaster prevention plan and design is proposed. If the proven techniques are reflected from the urban planning stage, it will be possible to contribute to the mitigation of sediment disaster caused by the city.

Types and Resilience Characteristics of Urban Disaster Prevention Design (도시방재디자인의 유형과 리질리언스 특성)

  • Pyo, Heejin;Kwack, Dongwha
    • Journal of the Society of Disaster Information
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    • v.13 no.1
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    • pp.59-72
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    • 2017
  • Recently, urban environments are changing due to climate change and urbanization. Because of these, Urban disasters occur frequently. To solve this situation, the architects and urban planners have been presenting urban disaster prevention design, and the concepts of resilience are utilized in urban disaster prevention design. In this study, we analyzed the cases of urban disaster prevention design presented by architects and urban planners, and grasped the types and resilience characteristics of urban disaster prevention design. Further, the direction of urban disaster prevention design was proposed in the point of sustainability.

Study on Urban Policies toward the Effective Disaster Prevention (실효성 있는 재해예방형 도시계획을 위한 개선방향 고찰)

  • Kim, Seulyea;Kim, Mieun;Kim, Changhyun;Lee, Sangeun
    • Journal of the Korean Society of Safety
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    • v.32 no.2
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    • pp.124-131
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    • 2017
  • This study aims to contribute to urban policy for more effective disaster prevention, as abnormal natural disasters are becoming more frequent. Up to now, the urban plan for disaster prevention in Korea merely includes basic principles and necessities of measures as an early stage. Furthermore, there are difficulties to make specific programs because the legal system, technical instruments, and financial supports are not sufficient. Therefore, this study figures out problems in the current plan related to urban prevention after analyzing the legal system and practices. Resulting from case studies in developed countries, the study draws significant implications, as follows: enhancing legally binding force; improving the procedures for the programs; establising technical infrastructure. It first suggests a way for the urban policy for disaster prevention by considering our local features comprehensively. It then defines the roles of central, local governemnts and research institutions, and the procedure for urban disaster prevention planning building on the individual roles. This study concludes that an emphasis should be placed on institutional tools necessary to publish technical guideline and establish the system so that urban planners more easily access to disaster risk information.

The Concept and Functional Objectives of the Urban Resilience for Disaster Management (재난관리를 위한 도시 방재력(Urban Resilience) 개념 및 기능적 목표설정)

  • Kim, Tae-Hyun;Kim, Hyun-Ju;Lee, Kye-June
    • Journal of the Korean Society of Safety
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    • v.26 no.1
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    • pp.65-70
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    • 2011
  • Resilience has been suggested as a new paradigm of disaster management which reduces losses against disasters under the uncertain circumstances. The purpose of this study is to define the concept and to set up the objectives of urban resilience for disaster management. The common concept and components of resilience were analyzed by examining recent studies on resilience. The resilience was defined as "a capacity of physical and social urban elements adapting and recovering against disaster for better condition" and the five objectives of resilience - Robustness, Redundancy, Resourcefulness, Rapidity, and Regional Competency - were derived from the review of literatures. The major disasters and accidents were analyzed focused on those objectives. The concept and objectives of urban resilience could be used as a guidance for disaster prevention planning and disaster management processes.

A Study of Safety Evaluation Based on the Road closure Simulation, and on the Isolation Risk in Times of Disaster (재해시 위험가능성과 도로폐쇄시뮬레이션에 의한 방재안전성에 관한 연구 - 일본 오이타현 사이키시를 대상으로 -)

  • Kim, Daeill;Park, Sungchan;Go, Jooyeon;Yeom, Chunho
    • Journal of the Korean Society of Safety
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    • v.35 no.2
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    • pp.84-93
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    • 2020
  • In recent years, the scale of damage from disasters such as earthquakes and large-scale fires and floods that are occurring in Korea is increasing. Accordingly, interest in urban disaster prevention that combines living infrastructure such as roads and parks is boosting, and it is urgent to prepare measures to reduce the damage scale of local cities. The purpose of this study is to derive implications for disaster prevention measures in areas where disaster prevention safety of local cities is weak through examples of disaster prevention safety of local cities in case of disaster. To this end, this study analyzed the regional characteristics, current status, and disaster prevention problems of regional cities in Japan, and selected disaster-vulnerable areas, and considered the distance relationship between disaster prevention bases through road network analysis. In addition, road closure simulation using ArcGIS Network Analyst was conducted to analyze disaster prevention safety in the area. As a result, the situation of the village which has a high possibility of isolation by natural disasters was grasped in advance. Through this, the suburbs confirmed the necessity of supplementing the disaster prevention function through transportation maintenance such as forest roads, and it was found that the city needs to prepare a risk management system. Furthermore, this study suggests the need for research on areas with a high possibility of isolation, especially in areas where disaster prevention functions are weak in local cities in case of disaster, and shows countermeasures for disaster prevention measures and resident education.

A Study on the Consciousness Survey and Comparison for Disaster Safety between Urban and Rural Areas (도시지역과 농촌지역의 재난안전에 관한 인식조사 연구)

  • Choi, Yunjung;Koo, Wonhoi;Baek, Minho
    • Journal of the Society of Disaster Information
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    • v.13 no.3
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    • pp.388-397
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    • 2017
  • Due to urbanization and industrialization, urban and rural areas show differences in various characteristics such as population structure, economic level and infrastructure, but disaster safety measures do not reflect these characteristics. In this study, the theoretical review on the disaster environments of urban and rural areas was carried out, and the survey of consciousness on disaster and safety(unstructured elements, structured elements, personel elements, environmental elements) targeting the idents was carried out in order to investigate the consciousness of residents in urban and rural areas for disaster safety. Also based on the survey result, the matters to be reflected when establishing a regional disaster management plan in future were drawn.

Development of Rainfall Information Production Technology Using Optical Sensors (Estimation of Real-Time Rainfall Information Using Optima Rainfall Intensity Technique) (광학센서를 이용한 강우정보 생산기법 개발 (최적 강우강도 기법을 이용한 실시간 강우정보 산정))

  • Lee, Byung-Hyun;Kim, Byung-Sik;Lee, Young-Mi;Oh, Cheong-Hyeon;Choi, Jung-Ryel;Jun, Weon-Hyouk
    • Journal of Environmental Science International
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    • v.30 no.12
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    • pp.1101-1111
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    • 2021
  • In this study, among the W-S-R(Wiper-Signal-Rainfall) relationship methods used to produce sensor-based rain information in real time, we sought to produce actual rainfall information by applying machine learning techniques to account for the effects of wiper operation. To this end, we used the gradient descent and threshold map methods for pre-processing the cumulative value of the difference before and after wiper operation by utilizing four sensitive channels for optical sensors which collected rain sensor data produced by five rain conditions in indoor artificial rainfall experiments. These methods produced rainfall information by calculating the average value of the threshold according to the rainfall conditions and channels, creating a threshold map corresponding to the 4 (channel) × 5 (considering rainfall information) grid and applying Optima Rainfall Intensity among the big data processing techniques. To verify these proposed results, the application was evaluated by comparing rainfall observations.

Research on Landscape Plan Strategy of Urban Waterside Space Buffer Zone - Focused on the Case of the Resilient Perspective of Plan - (도시 수변 완충지역의 경관 계획에 관한 연구 - 탄성 (resilient) 관점의 계획 사례분석을 중심으로 -)

  • Yang, Meng;Hong, Kwan-Seon
    • The Journal of the Korea Contents Association
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    • v.20 no.7
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    • pp.404-416
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    • 2020
  • Flooding is an unavoidable natural disaster for the city. Flood disasters seriously undermine the city's economy, safety, and sustained development. In the course of development and construction of waterfront space in the same city, the construction of basic disaster prevention facilities cannot be avoided completely even if huge amounts of capital are invested to reduce the economic damage of flooding. The cost of rebuilding the city after the disaster is much higher than the cost of building disaster prevention facilities. In recent years, the theory of elasticity in urban reconstruction and so on has been a subject of city problem solving, creating widespread discussion and attention in academia. In other words, how to transform the concept of elasticity into practice based on theoretical and empirical factors is a real problem facing urban disaster. Through theoretical literature on the waterfront (space) buffer zone of a city (flood-weak area) and the case study of the city's practice, this paper tries to clarify the element of 5R, the theory of elastomeric fire prevention, and present detailed measures accordingly. In addition, the following two problems are addressed while emphasizing the feasibility of implementing the urban waterfront (space) plan of the elastomeric element around the urban water buffer zone. First, the means of disaster prevention planning are used to mitigate conflicts between individual utility of urban waterfront and disaster prevention functions in waterfront buffer zones, and second, the waterfront buffer zone can respond to flood-causing problems in terms of disaster prevention as much as possible through the elastic disaster prevention plan.