• Proceedings of the Korea Society for Simulation Conference
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• 1998.10a
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• pp.21-24
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• 1998

Simulation modeling has become an extremely important approach to analyzing complex system. In recent years the number of people using simulation as problem-solving aid has increased. In this Paper, we developed a simulation model for analyzing the physical distribution system in ports. We used Arena 2.2 which is a kind of simulation software based common simulation language, SIMAN V. And then, we applied this model to kwangyang port(partially) and analyzed the effect of it upon port system in according to change of the quantity of goods transported.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.10a
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• pp.137-139
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• 2014

우리나라 항만을 입출항하는 선박은 연간 390,245척(2013년)이며, 연안해역을 통항하는 선박은 우리나라 남해안이 세계에서도 통항척수가 많은 해역이다. 이러한 연안 해역에서 거리별 통항교통량 분포 및 해양사고 분포를 통하여 연안해역 거리별 위험도를 파악하여 교통량 분산 등을 유도하여 해상교통 안전을 향상시키는데 목적이 있다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.265-266
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• 2015

인간의 사고 및 행동능력은 환경부하, 작업의 내용 등 외부환경에 큰 영향을 받는다. 선박운항 시, 인간-기계시스템 환경에서 항해사의 일정한 수준 이상의 판단 및 조선능력은 안전운항을 위해 매우 중요한 요소이다. 특히 협수로 항해시, 선박통항량이 많은 해역을 항해할 경우 선교에서의 작업부하가 커지고 그로 인한 피로 및 긴장에 의한 심신 기능이 저하되어, 항해사의 조선(操船)능력에 영향을 미치게 될 것이다. 그러나 선박운항 또는 입출항 시 항해사의 생리적, 심리적 스트레스를 측정하여 계량화한 연구는 미비하다. 따라서 본 연구에서는 웨어러블 심박수 측정장치를 이용하여 항해사의 심박수 변화를 측정 분석하고, 항해사의 선박 운항작업 시 발생하는 스트레스를 계량화하여 모델을 개발하기 위한 기초연구를 수행하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.126-128
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• 2023

선박 체선 및 화물 적체로 인한 문제로 정박지 내 선박 이용빈도가 높아져 인근 도시의 대기오염에 영향을 미칠 수 있다. 이에 본 연구에서는 부산 북항 O-2 정박지와 인근 도시의 대기오염물질 간 인과관계를 분석하였다.

• Journal of Navigation and Port Research
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• v.46 no.4
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• pp.321-330
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• 2022

Busan New Port manages the largest volume of traffic among Korean ports, and accounts for 68.5% of the total volume of the Busan port. Due to this increase in volume, ultra large container ships call at Busan New Port. When the additional south container terminal as well as ongoing construction project of the west container terminal are completed, various encounters may occur at the Busan New Port entrance, which may cause collision risk.s Thus, the purpose of this study was to provide a plan to improve the safety of vessel traffic, in the in/out bound fairway of Busan New Port. For this purpose, the status of arrivals and departures of vessels in Busan New Port, was examined through maritime traffic flow analysis. Additionally, risk factors and safety measures were identified, by AHP analysis with ship operators of the study area. Also, based on the derived safety measures, scenarios were set using the Environmental Stress model (ES model), and the traffic risk level of each safety measure was identified through simulation. As a result, it is expected that setting the no entry area for one-way traffic would have a significant effect on mitigating risks at the Busan New Port entrance. This study can serve as a basis for preparing safety measures, to improve the navigation of vessels using Busan New Port. If safety measures are prepared in the future, it is necessary to verify the safety by using the traffic volume and flow changes according to the newly-opened berths.

• Journal of Korea Port Economic Association
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• v.25 no.2
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• pp.57-72
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• 2009

The purpose of this paper is to show the empirical measurement way of operation risk evaluation in domestic seaports for overcoming the limitations which the traditional DEA method has by using 13 Korean ports in 2003 for 4 inputs(birthing capacity, cargo handling capacity, number of coastal guard vessel, number o f coastal special guard vessel ) and 5 outputs(Export and Import Quantity, Number of Ship Calls, number of coastal accident, number of coastal crime, number of coastal pollution). Because traditional DEA method has produced the limited set of information, negative DEA mixed with tier, stratification and layering methods should be adopted. The goal of negative DEA is to set up DEA models that will place the poor operating ports on or close to the empirical frontier. The core empirical results of this paper are as follows. First, Donghae ports should benchmark the operation way of Yeasu, Busan, Woolsan ports in terms of the middle and longterm base. Second, 5 ports(ports of Taean, Yeasu, Tongyoung, Busan, Sokcho) which were revealed as the poor operating ports in Negative DEA analysis should benchmark Incheon, Woolsan, Pohan, and Donhae ports. The policy implication to the Korean seaports and planners is that Korean seaports should introduce the new methods like Negative DEA of this paper for predicting the poor operating in the ports.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.1
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• pp.143-148
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• 2023

Currently, pilots and tugs perform the function of minimizing or eliminating property damage by preventing accidents on ships, ports, and human life by supporting docking/unloading and access and departure of ships. The piloting/tuging system is an essential function for the smooth functioning of the port, and it is the system that has the greatest influence on the cargo volume of the port. In this study, we developed an pilot and tugs information system analysis and operating system that can improve port operation efficiency, reduce the waiting time of ships, optimize the operation of ships, and allocate optimal pilots and tugs by utilizing the operation information of the tugbosts.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.1
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• pp.9-16
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• 2017

As a preliminary study of enter or leaving traffic patterns of the Korea main port, port Management Information System (Port-MIS) data was used to check the volume of vessels entering and leaving the port of Busan, and three consecutive days from each seasons were selected for study. Selected 12-day General Information Center on Maritime Safety & Security (GICOMS) data was also used to analyze the traffic pattern in the main traffic lane of Busan port for dangerous goods carrier. Also, the distance between dangerous goods carriers and Oryukdo breakwater of east breakwater in the main traffic lane was analyzed. Collision probability was estimated using the cumulative probability distribution function of the normal distribution for the maritime traffic safety audit scheme based on the assumption that a ship's trajectory has a normal distribution for a section of the route. However, in case of entry or leaving thorough the Oryukdo breakwater and entry thorough the east breakwater, ship's sailing trajectories were revealed not to follow a normal distribution via regularity testing using a KS-test and SW-test. Especially in the north port, the tendency of the right side of the ship to pass was remarkable. It is desirable to develop a traffic model suitable for the characteristics of the port rather than to apply general traffic theories, and to apply this model to a maritime traffic safety diagnosis, so further research is needed.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.225-226
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• 2011

IALA Waterway Risk Assesment(IWRAP)에서 선박의 충돌확률은 기하학적인 선박의충돌확률(geomatric probability)에 인과관계 확률(causation probability) 곱한 값으로 해당수역의 양적인 충돌확률 평가에 이용되고 있다. 이를 통해 목포대교부근에 통항하는 선박의 선종별 충돌확률 및 입출항 선박 전체 충돌 확률 값을 분석하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.374-376
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• 2012

우리나라 항만 입출항 통항 선박의 대형화, 고속화에 따른 해양안전사고가 증가하고 있어 항만 연안 해역에서의 해상교통 안전 확보가 절실히 요구되고 있는 실정으로, 최근 국제항로표지협회(IALA)에서 항로표지 설계와 배치계획에 대한 의사결정을 지원할 수 있는 항로표지 전문 기능 시뮬레이터의 개발과 주요 항로의 항로표지 설계 및 계획 등을 검증할 수 있는 시스템 필요성을 제기하였다. 우리나라 주요 항로의 항로표지 설계와 적정 배치 여부 등을 검증하고 보완할 수 있는 시뮬레이션 시스템이 필요하며 3차원 가상현실 기법을 이용하여 항로표지의 신설 및 이설에 따른 여러 가지 효과를 직관적으로 파악하고 대상 해역의 특성이 고려된 다양한 해상교통환경 변화에 따른 항로표지의 신설 및 이설 효과를 선박 운항자 관점에서 검증하거나, 새로운 항만 항로 건설시 최적 항로표지 배치에 대한 의사결정을 지원하기 위한 항로표지용 시뮬레이터 시스템 개발이 진행되고 있다. 이러한 항로표지 시뮬레이터 개발에 필요한 항로표지 관련 속성에 대하여 기술하였다.