• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.190-191
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• 2023

본 연구의 목적은 항로표지사고 예방을 위해 항로표지 사고 주요 요인을 도출하는 것이다. 이를 위하여 베이즈 이론을 활용하여 네트워크 구조를 작성하고, 23년간 발생한 항로표지사고를 적용했다. 도출된 항로표지 사고의 주요 요인은 추후 항로표지 사고 예방을 위한 정책의 기본자료로 활용할 수 있다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.38-40
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• 2022

항로표지는 항해안전에 중대한 역할을 하는 해상의 교통표지다. 항해사들이 항로표지를 이해하지 못하거나 항로표지의 시인성에 문제가 있을 때 항로표지는 본연의 기능을 수행할 수 없다. 본 연구에서는 항로표지와 관련된 해양사고를 분석하였으며, 항로표지의 이해도를 조사하였다. 또한 항로표지의 이해도를 향상시킬 수 있는 항로표지의 두표와 표체의 개선방안을 제시하였다. 도로 교통표지의 설계원리에 입각하여 항로표지의 문제점을 진단하였으며, 항로표지의 개선 대안들을 제시하였다.

• Journal of Navigation and Port Research
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• v.47 no.3
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• pp.128-133
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• 2023

In order for Aids to Navigation to provide sustainable services to users, it is possible when there is no Aids to Navigation accident. If an Aids to Navigation accident occurs, the manager should efficiently manage it to prevent the same accident. However, the current Aids to Navigation accident management only specifies the cause and type of the accident. There are no separate guidelines. Thus, the accident is recorded differently depending on the manager. Therefore, this study attempted to redefine Aids to Navigation accident. To this end, Aids to Navigation accidents that have occurred over the past 23 years (year 2000 to years 2022), IALA's Aids to Navigation information standard, S-201, and categories of accidents (traffic accidents and marine accidents) were analyzed. Causes of Aids to Navigation accidents were divided into internal and external causes. Accidents were divided into three types: Light tower accident, buoy accident, and equipment accident. By further subdividing primary items, the cause of accident was reestablished into 7 items such as mooring and bad weather and 11 items such as Light tower damage, buoy loss, and equipment breakdown. These research results can be used as basic data to provide future Aids to Navigation accident statistics.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.229-230
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• 2022

Smart AtoN(Aids to Navigation) that meet the future environment will generate variety of information and be provided in variety. In order to provide a customized service to marine users, the managers of AtoN should be able to check the any time and data in the desired format. In addition, in order to properly manage the AtoN in the future, it is necessary to identify the cause of the AtoN accidents and make efforts to prevent accident. In this study, 7 types of causes and 11 types of accidents were presented for AtoN accidents.

• Journal of Navigation and Port Research
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• v.47 no.6
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• pp.324-330
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• 2023

Aids to navigation, which provide information about a ship's position, direction, and the location of obstacles, are crucial for uninterrupted maritime services. This study aimed to analyze accidents involving aids to navigation that resulted in service disruptions and identify the key factors associated with these accidents. Aids to navigation accident data from 2000 to 2022 were utilized to achieve this. We categorized accidents by accident type, cause, region, season, and type of navigation aid and established a network through correlation analysis. Bayesian networks based on aids to navigation accidents were assigned prior probabilities, and the factors that increased the probability of accidents for different types of aids to navigation were identified. The findings can be used to infer the causes of unreported aids to navigation accidents and serve as foundational data for the prevention of such accidents.

• Journal of Navigation and Port Research
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• v.42 no.3
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• pp.187-194
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• 2018

Aids to Navigation (AtoN) is a marine traffic safety facility used to facilitate the safe and efficient movement of shipping and enhance the protection of the marine environment by the regulations or guidelines of The International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA). Our country is managing AtoN to provide consistent services for AtoN users, although an average of 141 AtoN accidents occur annually. An AtoN accident forces non-planned work on the managers to resort the function, and causes psychological anxiety for its users, ultimately resulting in economic losses. This study developed the Social Cost evaluation model of AtoN accidents. The model can be used to quantify the manager's economic activities related to the shutdown and recovery, as well as the cost associated with the inconvenience to AtoN users. The Social Cost evaluation model of AtoN accidents is proposed as the sum of the encounter cost, administration cost and risk cost.

• Journal of Navigation and Port Research
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• v.43 no.3
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• pp.166-171
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• 2019

Aids to Navigation(AtoN) Accident can reduce the credibility of AtoN by adding extra works to the administrators, and cause burdens and inconveniences to the users during their navigation leading to social costs (or economic losses). Prior research on social cost estimation model to determine the Encounter cost, Administrative cost and Risk cost on the Aton model was done to estimate the economic losses due to AtoN Accident. However, this research could not provide adequate study results on risk cost estimates. Therefore, this study complements the estimation model presented in the previous study, and the estimated social cost of 249 AtoN Accidents that occurred during the last 10 years (2008-2017) in the Busan Regional Office of Oceans and Fisheries jurisdiction area. The risk cost was estimated using contingent valuation method since the AtoN is a non-market goods. As a result, the social cost of AtoN Accidents for the past 10 years was estimated to total 12.4 billion won including Encounter cost of 3.1 billion won (25.38%), Administrative cost of 1.7 billion won (13.62%), and Risk cost of 7.5 billion won (61.01%).

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2021.11a
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• pp.39-40
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• 2021

선박과 항로표지 간 충돌에 의한 항로표지(buoy) 소실 및 사고를 줄이고자 영상을 기반으로 선박 접근 여부를 판단한다. 또한, 해양 기상환경을 파악해 운항 안전사고를 방지하기 위해 카메라로 촬영한 영상을 이용해 해무 강도를 측정하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.318-319
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• 2018

항로표지는 해상교통의 안전을 도모하고 선박운항 능률 향상을 위하여 설치된 해양교통안전시설 중 하나이다. 그러나 선박 또는 기상악화 등의 이유로 발생하는 항로표지의 사고로 인하여 제 기능을 상실 하였을 경우, 선박운항자나 이용자가 느끼는 선박통항 위험도가 증가할 가능성이 높다. 따라서 본 연구에서는 우리나라 최대 항만인 부산항을 중심으로 부산항 이용자를 대상으로 항로표지 및 표지사고에 대한 인식조사를 실시하여, 효율적인 항로표지관리방안을 제시하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.335-337
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• 2015

항로표지 유실사고(등부표)가 발생 후 항로표지가 관할구역을 벗어나 타지방청 관할구역으로 표류할 경우에 대해, 실제 사례를 들어 대응 시스템의 문제점을 분석하고 효율적인 대응방안을 제시하였다.