• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.10a
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• pp.23-24
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• 2010

오늘날 세계 각국은 글로벌 경제 체제에서 교역의 증대에 따라 해상 물동량이 증대되고 있으며 선박의 대형화, 고속화, 자동화, 또 해상대교나 신항만 건설 등 해상교통질서와 관련하여 항로표지 등 해양교통시설의 여건이 급격히 변화되었다. 이와 관련하여 항로표지는 항로의 혼잡을 방지하여 해운 물류를 원활히 하기 위한 수단이 된다. 항로표지는 광파, 형상, 음파, 전파 표지 등인데 이의 제도적 정비 및 규격의 표준화의 필요성과 방안을 분석하였다. 또한 국제표준과 한국표준의 제정 절차를 분석하고 국내용 항로표지용품 국토해양부 규격의 표준화 방안을 검토하였다. 향후, 항로표지의 기술적 분석, 항로 운영과 항로표지의 효율성, ICT 기술이 적용된 효과적 항로표지시스템분야에 있어서의 연구가 더욱 진행되어야 할 것이다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.326-328
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• 2012

충남 당진군 동부그린발전소를 건설하려는 계획에 따라, 15만 DWT급 석탄운반선 부두 및 3천 DWT급 석회석운반선 부두가 각각 1선석씩 건설될 예정이다. 안전하고 효율적인 부두 건설을 위해 국토해양부 해상교통안전진단 시행지침에 의거 안전진단을 수행하였다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.27 no.6
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• pp.775-782
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• 2021

The Myodo-Strait at Yeosu Port is normally used as a major vessel passage for dangerous cargo carriers that carry regular products of dangerous goods. Currently, the Myodo-Strait allows only single passage, and the speed of passage is also limited to 8 knots. As a result, demurrage at the wharf of hazardous goods are also on the rise. It is expected that the development of a number of dangerous commodity wharf in the future will increase the volume of vessel traffic and increase the number of vessels used in the project area. Therefore, it is urgent to improve the waterway in order to secure the safety of ships using the waterway and improve the demurrage. This study proposed an improvement plan for the waterway through the analysis of the marine environment of the waterway and the process of collecting opinions from users in the sea area. and it was finally proposed to expend the width of the strait to 300m and secure a depth of 9.50m through Guidelines of Port and Harbor Design review and ship handling simulation evaluation. In addition it was evaluated that the vessel traffic congestions at peak-time in the situation of solo passage was greatly improved from 71.01% to 47.3% even when it was allowed to ship's crossing passage, as a result of vessel traffic congestions evaluation. According to the proposed improvement plan, the safety of ships' passage in the project area can be secured, and the issue of demurrage was also considered to be improved.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.290-291
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• 2018

최근 해상교통량이 증가하고 연안 항해에 대한 관제 필요성이 요구되면서 선박 교통 관제구역이 점차 확대되는 추세이다. 이러한 관제구역의 확대는 관제사의 업무 부하를 초래하며, 이로 인해 교통 혼잡 시간대와 같이 교통량이 급증하는 경우 관제사가 위험 상황을 인지하지 못하는 상황도 발생하게 된다. 이러한 배경에서 본 논문에서는 관제 업무의 지원을 위해 이상 거동 선박을 자동으로 식별하는 방법을 제안하고자 한다. 제안하는 방법은 기계학습 기술을 기반으로 관제구역 내의 통항 패턴을 모델링하고, 이를 통해 이상 거동 선박을 식별하는 방법으로, 대상 항만의 누적된 AIS 데이터를 이용하여 모델을 학습하며, 실제 항적 및 시뮬레이션 데이터를 이용한 실험을 통해 선박교통관제시스템에의 활용 가능성을 고찰한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.1096-1097
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• 2023

본 연구에서는 항만 교통 혼잡 문제를 해결하기 위해 최적화와 관련된 요소와 트럭 운전기사와 터미널 사이의 협상과 관련된 요소를 새로운 방식으로 고려한 중장기 및 실시간 스케줄링 모델을 제시한다. 중장기 스케줄링 모델은 몬테카를로 시뮬레이션, 실시간 스케줄링 모델은 알파고 제로의 원리와 베이즈 정리를 이용하여 구현했다. 실험 결과 제시된 알파고 제로를 이용한 실시간 스케줄링 시스템이 화물차 평균 지연시간을 30분에서 4분으로 대폭 줄여 지연 시간을 최소화하는 것을 입증했다. 실험 관련 코드는 다음 주소에서 확인할 수 있다 : https://github.com/yulleta/Application_of_AlphaGo-Zero_to_port_arrival_scheduling

• Journal of Korea Port Economic Association
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• v.25 no.1
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• pp.29-46
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• 2009

According to construction work of No. 2 Lotte world, the alternative pier is under construction in Dongsam-dong Yeongdo-gu to accommodate small boats. As a result of that, in order to procure route of small boats passage,0-2 Anchorage used to bunkering or waiting for berth should be reduced, 220m. It is expected that the risk of passage and congestion around the anchorage could be increased because of the traffic of small boat using the alternative pier. Therefore, it is needed to enlarge the O-2 Anchorage 250m toward to inner breakwater. According to result of analyzing traffic circumstance and weather condition of anchorage near the Busan inner fairway, and to procure of alternative anchorage in order to resolve the problem caused by reduction of O-2 Anchorage, no problems incurred. In conclusion, reduction & enlargement of area of new O-2 Anchorage is expected to resolving of congestion & reducing of risk of traffic at O-2 Anchorage, and to operating O-2 Anchorage, efficiently.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.143-143
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• 2017

• Journal of the Korean Society of Marine Environment & Safety
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• v.14 no.1
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• pp.71-76
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• 2008

The main ports of Korean south sea are exposed to intensive danger as 58.1% of total vessel in Korea waters and 62.9% of total dangerous cargo ships. Therefore, it is required to establish fundamental database to solve numerous issues at the main ports cf the south sea as studying amount of the vessel traffic and their flows into the main ports, and evaluating degree of danger by traffics environmental stress model as analyzing relationships among degree of danger, maritime accident, and number of vessel arriving or departing in the main ports.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.29 no.1
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• pp.191-195
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• 2005

The port entry system of the inner harbor in Pyeongtaek (Asan) was planned as lock-gate in 'Master plan project on port planning in Asan industry base(1990)', but was changed to tidal harbor in 'Project maintaining Master Plan for comprehensive development of Pyeongtaek (Asan) port(2001)'. Accordingly, southern sea bank constructed under the lower part of Seohae-bridge will be removed so that inbound/outbound vessels for the inner harbor can navigate at all times. However, in the view of the safety on passing through the lower of Seohae-bridge, navigating conditions for the inner harbor will be restricted in the single-way of 50,000 DWT vessel and the two-day of vessel less than 30,000 DWT. Therefore, this study carried out the estimation of traffic congestion arising from these vessels with above restrictions after supposing annual inbound/outboubd vessel's numbers for loading and unloading cargo surveyed on the inner harbor.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.141-143
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• 2019

Vessel Traffic Service (VTS) increases the efficiency of maritime traffic in terms of reducing marine accidents and the efficient use of port facilities. This means that ports and waterways have their own capacities and can be safely adapted to their capacity through proper traffic management of the VTS. Proper traffic management can reduce the number of vessels and unnecessary waiting in ports, which can lead to economic benefits of ups and port terminals. On the other hand, Korean ports and waterways have restrictions on the maximum speed for safety, but there is no restriction on the minimum speed. However, ships that operate at low speeds in ports and waterways may be able to occupy long periods of operational routes, which may impede efficient port operation. Therefore, the purpose of this study is to propose the minimum speed of ship for efficient port and waterway use. To this end, we reviewed the current laws and systems and proposed the appropriate minimum speed in the waterway using the theory of queue.