• Journal of the Society of Disaster Information
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• v.19 no.1
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• pp.105-116
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• 2023

Purpose: The purpose of this study is to present the preemptive prevention and improvement measures for aviation safety management by examining the current status of the aviation industry and the operation system of the aviation safety management system and identifying the shortcomings of the currently operating aviation safety management system. Method: A plan to improve aviation safety management was proposed through an analysis of recent incidents and accidents, current status of domestic laws, and analysis of overseas operating institutions and safety management systems. Result: Through the recent aircraft safety-related incidents, deficiencies of currently operating aviation safety management, and response cases of advanced countries in overseas aviation, improvement points in terms of management systems and laws and preventive aviation safety management plans were derived. Conclusion: The method for improving aviation safety management was presented based on the technique using data, and it should be materialized through additional related research.

• 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.

• Journal of the Korea Institute of Building Construction
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• v.23 no.5
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• pp.639-650
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• 2023

In this research endeavor, we engaged with 70 construction safety specialists from established construction firms through surveys and interviews. The primary aim was to dissect and understand the weight and ramifications of specific cost items within the Occupational Safety and Health Management Funds(OSHMF) and Safety Management Expenses(SME). From our analysis, salient insights emerged. Within the realm of OSHMF, the cost items associated with safety facilities and the remunerations of safety managers were identified as paramount. It was observed that there are marked variations in the perceived significance and repercussions associated with diverse cost items of OSHMF. In stark contrast, when assessing the SME, the nuances in perceived weight and consequences of individual cost items were relatively muted, suggesting a more uniform viewpoint among the experts. Furthermore, our research probed the interrelationship between the significance and repercussions within OSHMF and SME domains. Notably, OSHMF manifested a positive linear relationship, suggesting that cost items of higher importance invariably had a more pronounced effect. On the other hand, the SME showcased a more subtle association, hinting at intricate underlying dynamics. The outcomes of this investigation are poised to offer instrumental guidance for enhancing safety protocols and diminishing accident occurrences in domestic construction undertakings.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.3
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• pp.160-174
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• 2023

LiDAR plays a key role in autonomous vehicles, and to improve its visibility, it is necessary to improve its performance and the detection objects. Accordingly, this study proposes a shape for traffic safety signs that is advantageous for self-driving vehicles to recognize. Improvement plans are also proposed using a shape-recognition algorithm based on point cloud data collected through LiDAR sensors. For the experiment, a DBSCAN-based road-sign recognition and classification algorithm, which is commonly used in point cloud research, was developed, and a 32ch LiDAR was used in an actual road environment to conduct recognition performance tests for 5 types of road signs. As a result of the study, it was possible to detect a smaller number of point clouds with a regular triangle or rectangular shape that has vertical asymmetry than a square or circle. The results showed a high classification accuracy of 83% or more. In addition, when the size of the square mark was enlarged by 1.5 times, it was possible to classify it as a square despite an increase in the measurement distance. These results are expected to be used to improve dedicated roads and traffic safety facilities for sensors in the future autonomous driving era and to develop new facilities.

• Journal of the Korean Society of Safety
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• v.25 no.3
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• pp.118-122
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• 2010

In order to provide the necessary operation flexibility during the Nuclear power operation, the extension of existing allowed outage time(AOT) is needed. The extension of AOT affects the Nuclear power plant safety. The validity of changed technical specification requirements should be proved by the safety assessments. In this paper, we evaluated the extension of emergency diesel generator AOT for a single inoperable emergency diesel generator(EDG) from 3days to 7days, 10days and 14days. Finally, the AOT extension contributes the NPP performances through decreasing the unexpected plant trips, reinforcing maintenance and avoiding risks due to unnecessary operation mode changes when the NPP is under the surveillance tests or maintenance.

• Journal of Advanced Navigation Technology
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• v.21 no.1
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• pp.30-35
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• 2017

Radio navigation aids are very important elements to provide information necessary for safe navigation using radio waves. Recently, the number of radio equipment using radio waves is increasing, and the air frequency interference by adjacent channels is very high. In addition, the use of irregular jamming that threatening radio navigation aids and satellite navigation system frequency is rapidly increasing. Therefore, it is urgent to ensure the safety of air waves. In this paper, we investigated the characteristics and frequency of the domestic navigation system. And we were analyzed the geographical separation standard for implementation of analysis program. Also, we implemented a program for the geographical separation distance analysis that applying international standards and recommended practices.

• Korean Journal of Construction Engineering and Management
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• v.9 no.6
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• pp.185-193
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• 2008

As buildings become higher and larger, the possibility of accident also increases, and recurrent accidents and serious accidents are also increasing. However, it is not possible to control all the hazardous activities in construction site. Therefore, hazardous activities with higher possibility should be identified and prioritized in advance so engineers and managers can control the activities in safe manner. For this purpose, this research adopts FMEA technique, which has been widely utilized in manufacturing industry. In order to apply FMEA technique in construction safety management, the process of construction work is divided into sub-processes or activities. Then FMEA technique is applied to quantitatively analyze the importance of each activity from the safety perspective.

• Journal of Korea Game Society
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• v.12 no.6
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• pp.5-14
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• 2012

The purpose of this paper is to demonstrate how three-dimensional gesture recognition technology, in children's traffic safety programs, can be an effective solution for instructing children in the safest ways to interact with traffic. In terms of traffic accidents, walking unaccompanied is the most dangerous traffic related activity for children. By using a three-dimensional serous game training program that implements gesture recognition, more accurate real life scenarios can be implemented in existing children's traffic training programs. The implementation of this technology will increase the possibility of changing the habits and attitudes of children, which in turn will lower the amount of walking related traffic accidents in children.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.502-506
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• 2006

For advanced construction safety, there frequently are repeated accident. Most of them are serious disasters which are continually concerned. But technical method of Safety organizations for construction project is still short, simple and unscientific. We suggest FMEA(Failure Mode and Effect Analysis) process on the safety management. The purpose of study is an establishment of safety system focused on scientific method by selecting priority unit and by figuring importance.

• Proceedings of the Korean Society for Rock Mechanics Conference
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• 2004.04a
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• pp.123-140
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• 2004

저준위 방사성폐기물 안전성 평가를 위해서 안전성 평가 대상에 관한 기술이 이해당사자들이 이해하기 명확하고 쉽게 설정되어야 한다. 방사선적 안전성 평가 시나리오란 처분장으로부터 유출된 방사성 물질들이 공학적 방벽과 천연 방벽을 거쳐 생태계로 어떻게 이동하는가에 대한 설명으로 안전성 평가를 위한 일종의 대본과 같은 역할을 한다. 본 논문에서는 핵종 이동 현상을 RES(Rock Engineering System) 방법론에 의거 기술하였다. 국내 처분장의 특성을 고려하여 처분 시설은 연안에 동굴 처분 방식으로 건설된다고 가정하여 생태계를 산정하고, 공학적 및 천연 방벽들이 처분장 설계 시 예상한 기능들을 수행한다고 가정하여, 기준 시나리오를 설정하였다. 또한 다양한 설계 고려 요소들을 고려하여 대안 시나리오들을 도출하고자 하였다. 도출된 시나리오의 주요 항목들을 평가하기 위해서 AMF(Assessment Method Flowchart)를 도출하였다. 주어진 지형 조건에 따라 확률론적 방사선적 안전성 평가를 위해 각 지층 구조별 이동 거리 및 시간을 CONNECTFLOW를 이용해 산정하고, 그 결과들을 Response surface method를 이용해 확률 밀도함수로 도출하여 방사선적 안전성 종합 평가 코드인 MASCOT-K의 입력 자료로 활용되도록 하였다.