• Journal of the Society of Disaster Information
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• v.19 no.4
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• pp.770-778
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• 2023

Purpose: In order to reduce forklift industrial accidents, it is necessary to classify them into institutional, technical, and educational factors and conduct research on whether each factor affects disaster reduction. Method: Descriptive statistical analysis, validity analysis, reliability analysis, and multiple regression analysis were conducted using SPSS 18 program based on an offline questionnaire based on a 5-point Likert scale. Result: As a result of multiple regression analysis, it was found that institutional, technical, and educational factors, which are independent variables for disaster reduction, explain about 62.5% of the variance in disaster prevention, which is the dependent variable. The regression model verification was found to be statistically significant with F=118.775 and significance probability p<0.01. Conclusion: First, there is a need to prevent disasters by including electric forklifts weighing less than 3 tons in the inspection system. Second, there is a need to make it mandatory to install front and rear cameras and forklift line beams to prevent forklift collision disasters. Third, there is a need to conduct special training related to forklifts every year, and drivers and nearby workers need to be included in the special training for forklifts.

• Journal of the Society of Disaster Information
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• v.7 no.1
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• pp.64-74
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• 2011

Cultural properties should be protected more than other facility because of its symbolization of a nation's historic and conservative value. So proper and effective actions for the management of our legacies is necessary. On this study, we'll research cases of cultural properties fires and manage to show the safety system of legacy and analyze problems of the system so that we can result in improvements for the safety of our treasures. This study is not to include almost all kind of cultural assets but only confined in a category of wooden materials, so there's limit of this study. And we should consider fires of tangible cultural properties, souvenirs and folk materials later period.

• Computers and Concrete
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• v.32 no.6
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• pp.615-623
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• 2023

Crack detection is an essential method to ensure the safety of dam concrete structures. Low-quality crack images of dam concrete structures limit the application of neural network methods in crack detection. This research proposes a modified attentional mechanism model to reduce the disturbance caused by uneven light, shadow, and water spots in crack images. Also, the focal loss function solves the small ratio of crack information. The dataset collects from the network, laboratory and actual inspection dataset of dam concrete structures. This research proposes a novel method for crack detection of dam concrete structures based on the U-Net neural network, namely AF-UNet. A mutual comparison of OTSU, Canny, region growing, DeepLab V3+, SegFormer, U-Net, and AF-UNet (proposed) verified the detection accuracy. A binocular camera detects cracks in the experimental scene. The smallest measurement width of the system is 0.27 mm. The potential goal is to achieve real-time detection and localization of cracks in dam concrete structures.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.231-237
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• 2014

In order to improve participation and quick decision-making in an emergency, the Voluntary Participation Program was recommended in this study for effective management of Civil Defense. The problems in the Law and Administration group and Forced Education by Mobilization system were analyzed through actual conditions of Civil Defense management and participation. In order to improve these problems, cases such as "Extension of Participation Methods", "Cooperation Activities with Civil Groups", "Usage of Community Information" were studied. Based on the investigation results, domestic applicability was recommended.

• Journal of the Society of Disaster Information
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• v.18 no.2
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• pp.395-404
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• 2022

Purpose: Small-scale construction sites have insufficient systematic safety management activities, and due to the characteristics of the construction site, the production structure is complex due to external environmental factors, and the risk of construction equipment is very high. We would like to propose a checklist method among practical risk assessment techniques that can derive risk factors for disaster prevention at small construction sites and reduce disasters. Method: Risk factors were derived by analyzing literature research and disaster cases, and detailed work for a checklist of risk assessment suitable for small-scale construction sites was classified based on risk factor items. Result: Hazard factors were divided into 6 major categories, and 29 detailed types of work were classified based on actual work types, and 80 detailed works were classified accordingly. Conclusion: By arranging risk factors suitable for small-scale construction sites according to the classification system, the lack of expertise in the construction site can be supplemented, and risk factors can be derived more easily and disaster reduction can be expected through establishment of safety measures.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.303-304
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• 2022

본 논문에서는 재난위기경보관리시스템 구축을 위해 행정안전부가 구축중인 재난안전데이터 공유 플랫폼의 데이터를 연동하기 위한 기반 및 기술을 제안한다. 국가 R&D로 수행중인 재난위기경보관리시스템은 위기경보 수준을 판단하기 위해 필요한 데이터를 수집, 위기경보 수준 자동분석, 위기경보 수준 판단 및 표출하는 기능을 구현하였다. 그러나 실제 운영하기 위해서는 국가재난정보관리시스템(NDMS)내에서 운영할 수 있도록 재난안전데이터 공유 플랫폼의 데이터 연동을 위한 방안에 대해 연구하였다.

• Journal of the Society of Disaster Information
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• v.19 no.3
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• pp.490-497
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• 2023

Purpose: Since the 1990s, Korea has been making various efforts to prevent serious industrial accidents, such as implementing a hazardous risk prevention plan and implementing a process safety management system, but a series of recent major industrial accidents have shown its limitations. Therefore, this study aims to present measures to improve safety management of PSM target workplaces. Method: Investigate previous studies and cases on improving safety management at workplaces subject to PSM, seek ways to improve safety management at workplaces subject to PSM based on existing safety management, and evaluate safety management system one of the causes of accidents. Therefore, a safety education program is established to increase employees' safety awareness and understanding, and to improve the safety level. Result: Measures such as establishing an organizational culture to improve safety management of PSM target workplaces, responding to disasters, systematic safety management, replacing and strengthening old facilities, and strengthening management's firm commitment to safety were presented. Conclusion: Through this study, it is meaningful to present a systematic plan to secure safety to reduce precious lives and damage, and it is expected to be useful in considering the direction of PSM improvement for each workplace.

• Knowledge Management Research
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• v.19 no.1
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• pp.59-77
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• 2018

The tourism industry is now changing to smart tourism, which maximizes tourists' overall tourism experience with the use of advanced mobile technologies and emphasizes the utilization of tourism information. Despite the quantitative expansion of the tourism industry, there is a lack of academic and practical discussion on tourism safety. Especially, in the context of walking tourism, tourists are more likely to be exposed to natural or social disasters and emergencies. Therefore, it is necessary to build a system that can provide walking tourists with safety information not only on dangerous factors which are anticipated to be confronted during a walking trip in advance but also on specific dangers in real time. Under the circumstances, this study seeks to identify the types of tourism safety information that can be offered by using publicly available open data, drawing on the safety information framework on the walking tourism that is presented in Choi et al. (2017)'s study. More specifically, this study focuses on the use of open data which is provided by the Korean government. Furthermore, this study verifies the types of safety information that are most urgently needed in walking travel situations. Specifically, this study aims to derive the importance and priority of each type of safety information for a walking trip by applying the analytic hierarchy process (AHP) analysis. For this, we collected 35 questionnaires from walking tour operators (practitioners) and walking tourists. The main results are as follows. First, natural disaster information is the most important factor in the top-level factor of safety information for walking tourists, followed by social disaster, life safety, and exhibition (security crisis) information. Second, information on natural disasters, environmental pollution, and weather is considered to be important at the sub-level factor. Lastly, the noteworthy result of this study is that the importance of each type of safety information varies depending on the walking tour operators (practitioners) and the walking tourists. That is, there is a recognition difference between the operator (practitioner) and the user in the importance and priority of the safety information of the walking trip. Therefore, it is necessary to develop policies and services reflecting the opinions of potential users when providing safety information so that the most importantly recognized information can be provided first.

• Journal of the Korean Society of Safety
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• v.37 no.4
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• pp.92-100
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• 2022

Of the Korean military's 3,959 ammunition depots, 1,007 - more than 25% - violate safety requirements for distance and equipment. There is a risk of explosion in old depots that are vulnerable to various interior and exterior accidents. This paper examines 10 scenarios, with varying values for ammunition amount and safety distance. The study calculated the overpressure that can be applied to risk-exposure objects, based on the safety distance; expected damage was predicted using constructed spatial information from 3D explosion simulations. The simulations confirmed that explosion overpressure increased the most when the safety distance violation rate increased from 80% to 90%. It also confirmed that secondary damage such as fire and explosion can cause casualties and property damage when the violation rate is 60% or higher. The results show that building collapse becomes a risk with a violation rate of 70% or higher. We conclude that taking ammunition depot safety distance violation into account when planning military facilities and their land utilization could better protect life and property.

• Journal of the Society of Disaster Information
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• v.17 no.3
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• pp.568-578
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• 2021

Purpose: TThis study seeks to understand the provisions of the Industrial Safety and Health Act and the Construction Technology Promotion Act and to propose measures to prevent serious industrial accidents by seeking to promote safety and health of workers through improvement of safety management at construction sites. Method: A survey was conducted on construction sites with more than 50 permanent workers (5 billion won in construction amount). The analysis of the data was conducted using the JAMOVI statistics program and based on objective data. Result: Multiple regression analysis was conducted to verify the hypothesis of this study, and the results of the analysis. The participation of workers in safety and health activities has the highest impact on the promotion of safety and health of workers. Conclusion: In order to promote safety and health of workers at construction sites, compliance with safety and health rules of workers is required and improvements should be made to allow workers to participate in safety and health activities.