• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.2
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• pp.161-167
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• 2017

This paper measured and evaluated the technical efficiency, pure technical efficiency and scale efficiency of port labor via three inputs and three outputs using Data Envelopment Analysis (DEA). First, the average overall technical efficiency measured about 94.18 %, with 100 % pure technical efficiency being larger than 94.18% scale efficiency. As a result, 7 ports were identified as efficient, and 4 ports were identified as inefficient. Among the 4 ineffiecient ports, Donghae had the highest Increasing Return to Scale (IRS). However, the inefficient ports were all found to be less efficient in terms of resource operation than production scale. On the other hand, the efficient ports established priorities using the super efficiency method. As a result, port efficiency was highest for Incheon, Mokpo, Pyeongtaek-Dangjin, Masan, Yeosu Gwangyang, Jeju, and Gunsan-Daesan Ports, in order. In particular, Busan Port, found to be inefficient, would benefit from using Mokpo Port and Incheon Port as benchmarks to increase trade volume and modernize equipment for full-scale commercialization to improve labor efficiency.

• Journal of Korea Port Economic Association
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• v.28 no.3
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• pp.215-234
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• 2012

Since ports play a role of gateway to the sea and hinterlands, it is essential to analyse the networks of shipping and inland when evaluating the function and development of a port. The container port of Gwangyang, starting to operate its facilities in 1998, has developed itself as a hub port. Using the data of shipping schedules of Korean ports and the measurement of centrality in sociology, this study analyses the process of world-wide shipping network expansion in Gwangyang and concludes some implications including earlier development of shipping networks due to incentives to shipping companies. Although Gwangyang port also has been expanding its inland network through developing trucking, railway transport, and coastal shipping, it has weakness in inland network as in the cases of interruption in 2004, resumption in 2009 and re-interruption in 2012 at coastal shipping. In 2000s the expansion of shipping and inland networks at the newly built container ports such as Pyungtaek, Ulsan, and Gunsan has enticed the competition among Korean ports at each hinterland. Nevertheless, the operation of Gwangyang container port is considered to affect indirectly the relocation of some manufacturers including Samsung Electronics. Studies on interrelation between development of container port and geographical demography of manufacturers are needed to assess the effects of container port on regional economy.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.135-149
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• 2016

This study analyzes the concentration ratios (CR) and the shift effect in the system of Korean container ports that concern the export and import of container cargos, especially from/to 5 overseas origin/destination (O/D) regions, using the Hirshmann-Herfindahl Index (HHI) and the Shift-Share Method. The results shows that the CR has decreased during the last 20 years, from 0.86 to 0.44, mainly because cargos from/to the Far-East/South-East Asian regions have become more dispersed to several domestic container ports, especially from the Port of Busan. This study also indicates that there has been little change in the CR for all cargos, like the value of -0.3%, in the last 5 years. However the change in CRs for the cargos from/to the North America and Europe is positive, with the value of 7.6% and 6.6%, respectively. It can be inferred that the future development of medium- and small-sized container ports in Korea is not very likely. The study also suggests that the CR and the shift effect of the Korean container ports for the cargos by the domestic O/D regions should be analyzed in the future to suggest policy implications in great detail.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1996.10a
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• pp.55-59
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• 1996

전회의 극치확률모형에 의한 해면분석(최, 1982)은 자료연장이 증가됨에 따라 재분석(update)이 이루어졌다. 검조자료의 연장이 35년 정도로 확장된 시점에서 특히 주요검조소의 인근에서 방조제, 하구둑(군산, 목포), 검조소 이전(인천), 대규모 매립(여수)이 수행되어 조석체계가 변화되는 양상이 있어 년극치 역시 동질성의 확보에 문제가 있어 년조석분석과 동시에 이러한 조석변화를 확인하였다. 더불어 년극치(annual extreme) 역시 그룹핑시켜 이를 분석하였다. (중략)

• Journal of Korea Port Economic Association
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• v.24 no.2
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• pp.209-239
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• 2008

The purpose of this paper is to investigate the effectiveness of Korean port investment by using the newly developed slack-based multi-year panel congestion model of DEA(Data Envelopment Analysis). Inputs[port investment amount, cargo handling capacity, and berthing capacity], and outputs[cargo handling amount, number of ship calls, revenue, and score of customer service satisfaction] are used during 1994-2004 for 20 Korean seaports. Empirical analysis identified congestion especially in port investment as input at the ports of Gunsan, and Busan in the all 3 models, and the ports of Pyungtag, Mogpo, Yeosu, and leju in over 2 models. Port investment induced the rapid increase of port efficiency from the ports of Masan, Incheon, Donghae, and Samcheok. Therefore other ports except these ports should examine the reason about the inefficiency of port investment by searching out the situation of each ports directly. The main policy implication based on the findings of this study is that The Ministry of Land, Transport and Maritime Affairs in Korea should introduce the new measurement way after reviewing the multi-year slack-based congestion approach when the amount of port investment for each port is decided.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.496-498
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• 2012

선박이 운항중 타선과의 충돌상황을 효과적으로 신속하게 파악하는 데 도움을 줌으로써 선박 충돌사고를 방지하기 위한 선박충돌위험도 식별시스템을 개발하였다. 지난 연구에서는, 고안된 시스템의 성능을 검증하기 위해 부산항에서 일어난 제품운반선과 화물선간의 충돌사고의 실제 AIS 데이터를 이용한 재생시뮬레이션을 수행한 바 있다. 본 논문에서는 선박충돌위험도 식별 시스템의 테스트베드를 구축하였고, 실제 해상에서 AIS 신호를 이용하여 성능을 검증해 보고자 하였다. 이를 위해, 군산항과 인천항의 연안여객선에 테스트베드를 장착하고, 실제 운항중 AIS 정보를 이용하여, 실시간으로 선박충돌위험도 식별시스템의 온보드 시험을 수행하였다. 본 논문에서는 선박충돌위험도 식별 시스템의 테스트베드의 특징과, 실제 해상에서 수행된 온보드 시험 결과에 대해 소개하였다.

• Journal of Korea Port Economic Association
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• v.22 no.2
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• pp.1-18
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• 2006

The purpose of this study is to consolidate the position of Kunsan Port as a Hub-port in Northeast asian region with the development of Kunsan port's hinterland. To accomplish the purpose, this paper firstly reviews the concept and function of port's hinterland literally. Next, We attempt to grasps the trends of port logistics service in this region, and to cope with this trends, study the previous researches of logistics platform(LP). Based upon the study, We find out the main factors of improving efficiency in port logistics, and build the model of logistics strategy with such factors as (1) Environment (2) Marketing (3) Logistics Chain and (4) Logistics community. And in order to applicate the model, we analyze the current situation of Kunsan port and port's hinterland. Finally, we provide the logistics strategies in Kunsan port's hinterland.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.83-84
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• 2018

평택지방해양수산청은 서해권역의 인천, 평택, 대산, 군산해양수산청의 부표류에 대한 점검업무를 수행하고 있다. 서해권역은 해역 특성상 안전을 위해 부표류의 설치가 해마다 증가하여 전국에서 가장 많은 기수가 설치 운영되고 있으며, 부표류의 이탈사고 또한 지속적으로 발생하고 있다. 부표류의 안정적 운영을 위한 점검 정비 및 사고 감소를 위한 업무의 개선이 필요하다. 본 연구에서는 부표류의 사고원인을 분석하고, 부표류 사고를 줄이기 위한 개선된 점검 정비 방법 및 효율적인 관리를 방안을 제시하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.471-473
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• 2013

주요 통항로에 설치된 해상교량과 해상풍력단지는 선박의 안전항해에 지대한 영향을 미친다. 특히, 90년대 들어 국내에 다수 건설된 해상교량은 과거에 경험하지 못한 대규모 선박-교량 충돌사고의 유발 가능성을 예고하고 있다. 또한 국내 군산지역에 구축될 해상풍력단지 역시 선박과의 충돌 가능성을 내포하고 있다. 이 논문에서는 과거에 연구 개발된 해상교량과 해상풍력단지의 안전성 평가기법을 조사하고, 향후 실용화 방안을 모색하였다. 연구결과, 기존 연구결과를 토대로 위기관리 시스템을 구축하면 궁극적인 해양사고 예방이 가능할 것으로 고려되었다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.77-80
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• 2019

GPS 항법 시스템은 재밍(jamming)에 취약한 것으로 알려져 있다. 실제로 2010년부터 북한은 서해상과 수도권에 GPS 전파교란 공격을 감행, 운행 중이던 선박과 항공기의 네비게이션 등에 다수의 장애현상을 유발시켰다. 이것에 대한 대안으로 eLoran(enhanced Long Range Navigation)이 GPS 항법 시스템을 보완할 수 있다고 알려져 있다. 이에 따라 해양수산부(MOF)는 기존 포항·광주 로란-C 송신국에 UTC(Coordinated Universal Time) 기반의 시각동기시스템 구축하여 지상파 eLoran 시스템으로 활용하기 위한 eLoran 사업을 진행하고 있다. 본 논문에서는 기존 포항·광주 로란-C 송신국에 UTC(Coordinated Universal Time) 기반의 시각동기시스템을 구축하기 위한 요구 사항을 살펴보고, 이 요구 사항에 따른 포항·광주 로란-C 시각동기시스템의 구축 결과에 대해 기술하였다.