• Title/Summary/Keyword: Disaster Field Investigation

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Image Quality Assessment of Mobile-based Image Acquisition System for Disaster Scientific Investigation (재난원인과학조사를 위한 차량기반 영상취득시스템의 영상품질평가)

  • Kim, Mi Kyeong;Kim, Sang Pil;Kim, Nam Hoon;Song, Young Karb;Sohn, Hong Gyoo
    • Journal of Korean Society for Geospatial Information Science
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    • v.24 no.3
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    • pp.75-83
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    • 2016
  • There are various types of disasters now, and accordingly it is practically difficult to manage all types of disasters effectively. If we are able to reconstruct the disaster event and investigate the cause, it may be possible to prepare the recurrence of similar patterns of disasters. The vehicle-based system equipped with state-of-the-art sensors has been proposed in order to reconstruct the disaster site as much as possible and help the disaster investigator to analyze the cause of the disaster by providing high-quality information. However, the data quality obtained from the sensors can be lowered due to unpredictable circumstances of disaster site. In this aspect it is essential to provide practical procedures that assess and analyze the performance of the equipment on site. In this paper, we selected critical elements of performance that can evaluate the vehicle-based image acquisition system, since it is the most critical piece of information in the disaster sites. The quality of the images obtained from vehicle-based image system was analyzed and verified on the test site. From the results of spatial resolution based on GRD(Ground Resolved Distance), we were able to identify maximum 5mm of spatial resolution at a distance of 70m distance. The result of field test is expected to be used for data acquisition plan in future disaster situations.

The tasks and prospect of introducing the pravite investigation servicesystem in korea (한국민간조사제도 도입전망과 과제)

  • Park, Jun-seok;Jeong, Youn-min;Lee, Young-seok
    • Journal of the Society of Disaster Information
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    • v.3 no.2
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    • pp.95-117
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    • 2007
  • With rapid changes taking place in every field, the expansion and specialization of various social service activities are one of the characteristics of the modem society. However, the increase of crimes and inefficiency of public police service to cope with this situation have caused discontent and distrust on the service among the public, making people more inclined to solve safety-related problems by themselves. Private Security Service(PSS) and Private Investigation Service(PIS) were introduced to satisfy these needs. In the area of PIS, Public Investigation Service System(PISS) has been established for a quite long time in foreign countries. However in Korea, PIS is being provided by unregulated service providers such as errand service center due to the lack of legal system, causing many problems related with illegal practices by the service providers. This paper is the result of the research on how to adopt a relevant PISS in Korea and develop it in the future. This kind of research is much needed to curb the rising illegal practices of the errand service centers, complement the insufficient operation of public police service, and strengthen the competitiveness of our country by taking more efficient actions in the changing public security environment. Based on the research, this paper also examines positively the possibility of introduction of PIS in Korea. This paper also recommends a prompt enactment of PIS regulation and improvement on the legal environment for such introduction of the relevant and suitable PISS in Korea.

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A Study on the Management Improvement of Disaster Recovery Resources of Municipality with Field Survey (현장실태조사를 활용한 지자체 재난관리자원 관리 개선 연구)

  • Kim, Joon-Ha;Kim, Tae-Heon;Jung, Jae-Wook
    • Journal of the Society of Disaster Information
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    • v.16 no.1
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    • pp.155-162
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    • 2020
  • Purpose: The purpose of study was to identify problems in disaster recovery resource management and operation through on-site investigation and utilize them as improvement proposal for disaster recovery resources management by local governments. Method: Areas with high natural and social disasters recorded in historical and yearly records of natural and social disasters, related books, and annual reports for 20 years were selected. The DRSS data of the selected local governments were analyzed and the reserve warehouse were selected for field survey. Result: It is analyzed that the current situation in the city hall and district offices is somewhat insufficient due to heavy work by the working-level officials of local governments on the storage of disaster recovery resources. The actual amount of stockpiles and DRSS data are somewhat different or missing because the input method and criteria are not clear at present when inputting the current data. Conclusion: To improve the management of the disaster recovery resource reserve, it is deemed that education of DRSS and training of best practices for the operation of disaster management resources are urgently needed, and that a systematic management of stockpiles using disaster prevention experts will be required.

A Study on the Application of National Fire Investigation Data (국가 화재조사 자료 활용에 관한 연구)

  • Kim, In-Tae
    • Fire Science and Engineering
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    • v.20 no.4 s.64
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    • pp.105-109
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    • 2006
  • Fire station is a response agency of disaster management. Its various field experience and materials could build up to database to support fire prevention and fire fighting, but it has not been worked out efficiently. To overcome this inefficiency, National Emergency Management Agency(NEMA) has made total improvement in "National Fire Investigation Data Classification System" mainly done by its Fire Investigation and Analysis Team. This study reviews existing fire investigation and data accumulation and analysis process so that it could be used as a basic data for "National Fire Investigation Data Classification System" operation.

Cause Analysis and Improvement Suggestion for Flood Accident in Dorimcheon - Focused on the Tripping and Isolation Accidents (도림천에서 발생한 고립 및 실족사고의 원인분석을 통한 개선방안 도출에 관한 연구)

  • Lee, Kyung-Su;Jeon, Jong-Hyeong;Kim, Tai-Hoon;Kim, Hyunju
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.4
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    • pp.25-36
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    • 2021
  • This study analyzed the causes of flood accidents, such as isolation and lost footing accidents in Dorimcheon, to provide legal and institutional improvements. For cause analysis, Field Investigation, Stakeholder Interview, Report, manual, Law et al. Review, Analysis of water level change characteristics, automatic alarm issuance standard level analysis, and evacuation time according to river control were evaluated. Dorimcheon has the characteristics of a typical urban river, which is disadvantageous in terms of water control. In addition, the risk of flood accidents is high because the section where fatal accidents occur forms sharply curved channels. Tripping and isolation accidents occur in the floodplain watch and evacuation stage, which is the stage before the flood watch and warning is issued. Because floodplain evacuation is issued only when the water level rises to the floodplain, an immediate response according to the rainfall forecast is essential. Furthermore, considering that the rate of water level rise is up to 2.62 cm/min in Sillimgyo 3 and Gwanakdorimgyo, sufficient evacuation time is not secured after the floodplain watch is issued. Considering that fatal accidents occurred 0.46 m below the standard water level for the flood watch, complete control is very important, such as blocking the entry of rivers to prevent accidents. Based on these results, four improvement measures were suggested, and it is expected to contribute to the prevention of Tripping and Isolation Accidents occurring in rivers.

Techniques of flood damage investigation and flood losses data management (홍수재해조사 및 재해자료관리 기법)

  • 김양수
    • The Journal of Engineering Geology
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    • v.10 no.2
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    • pp.36-51
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    • 2000
  • Almost every year, Korean suffered from the repetitive natural disasters such as typhoons and floods. During last 10 years, Korea experienced annual average of $50 million property damages caused by inundation. To estabilish the flood disaster counter plan, knowledge for flood damage causes based on the field investigations of inundated area is required. The field investigations is focused on technique to document and analyze the meteorological conditions leading to torrential rains, the causes and patterns of flooding, the performance of flood control structures in affected areas, the extent damages and the effectiveness of local emergency response and recovery actions. We did comparative analysis of field investigation techniques. As a major goal of flood hazard map design, one of non structural disaster countermeasures, it was expected to reduce flood damage losses by requiring local governments to implement land-use regulation that would result in safe building practices in flood hazard areas. This requires local governments to develop flood hazard maps to assess how to manage particularly vulnerable floodplain areas. In this study we suggested a design manual and the management system of flood hazard map.

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A Study on the Improvement of Pile Foundations Based on the Analysis of Field Case Studies (말뚝기초 시공사례 실태분석을 통한 개선방안 연구)

  • Woo, Jae-Gyung;Lee, Su-Gon;Lee, Byok-Kyu;Jang, Seung-Jin
    • Journal of the Society of Disaster Information
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    • v.8 no.1
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    • pp.81-92
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    • 2012
  • In this study, in-depth site investigation related to design and construction of pile foundation was carried out, especially with respect to 103 large-scale bridges located in South Korea. As a result, the depths and location of investigation was unsatisfactory at the foundation investigation process. Moreover, pile load tests were not performed when the capacity of the file is calculated in planning phase, and it was difficult to determine the load capacity limit due to the fact that loading capacity was not specified in pile-loading test. The design criteria related to pile foundation does not reflect the reality of the construction site, and that causes over design, and economic inefficiency in budget. Therefore, the purposes of this study is to review case studies related to the bearing capacity of pile foundations and suggest improvements in the construction specifications.

Economic Evaluation of Investigation Method Using Cost-Benefit Analysis (비용편익분석을 이용한 사면조사기법의 경제성 평가)

  • Kim, Yong-Soo;Jung, Soo-Jung;Ahn, Sang-Ro
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.03a
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    • pp.1076-1085
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    • 2009
  • Recent heavy rains and typhoons broke down road slopes, which caused a hazard to safety. As a result, interests in the effective investment for disaster prevention is increasing. Measures of investigation method for slope have been taken, but the financial costs have never been analysed. This study applied the cost-benefit analysis theory used in public economics to the evaluation of the financial reasonability of management for slope. By applying cost-benefit analysis to road slope investigation method, the reduction of safety costs and resulting financial benefits can be seen and it also clarifies the reasonability and investment effects of slope management.

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Study on the Improvement of a Special Fire Police Judicial Police System (소방특별사법경찰제도의 문제점에 따른 개선방안 연구)

  • Park, Hyeong-Jin;Kim, Jung-Rae;Kim, Jong-Buk;Cha, jin;Kwon, Hyun-Seok;Lee, Si-Young
    • Fire Science and Engineering
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    • v.32 no.5
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    • pp.77-86
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    • 2018
  • In recent years, the high growth of the Korean society has led to the development of large and small incidents and accidents, while safety regulations, such as the firefighting sector, have been strengthened with the expectation of people desiring safety. This study surveyed the problems and improvement plan of the current operation centered on the fire service public officers in Gyeonggi-do and Gangwon. As a result of the main research, it is necessary to arrange and carry out excellent investigative manpower, such as lawyers and professional career veterans in the fire department, metropolitan city and provincial firefighting headquarters, and frontline fire departments. In particular, it was suggested that a special task force should be established and set up in the above agency, and the planning investigation and enforcement work should be solved through subdivision of the fire special enforcement officer tasks, and the judicial cases that are difficult to be handled by the local fire station. In future research, it will be necessary to study the field of fire - fighting specialists' needs for more specialized education and various disaster field experiences.

Empirical Study to Strengthen the Disaster Management of Wooden Cultural Heritage - Focused on Concept and Range of Cultural Heritage Disaster Management and Investigation of On-site Manager (목조문화재의 안전관리 강화를 위한 실증적 연구 - 문화재 안전관리의 개념과 범주 및 현장 관리자 의식조사를 중심으로 -)

  • Lim, Suhng-bin;Ryu, Ho-cheol
    • Korean Journal of Heritage: History & Science
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    • v.46 no.2
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    • pp.96-113
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    • 2013
  • The concept of disaster management of cultural heritage is not clearly established and the range and type of it is not organized yet. Also, there is an ever-present danger in the field control because there is no system that can provide safety of cultural heritage from various dangerous factors. Concretely, institutionally, the regulation of disaster management of cultural heritage remains limited and there are not enough reasonableness in installation and management of fire-fighting equipment and safety equipment. Also, we need to take an action to secure the safety of cultural heritage from its surroundings. In this research, we setup the concept, type and criteria for disaster management of cultural heritage to overcome limitations and problems of management of cultural heritage. In addition, in order to raise the level of disaster management of cultural heritage, this research proposes direction to reinforce the disaster management of cultural heritage by investigating and analyzing consciousness of security guards and fire-fighting officers.