• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.383-385
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• 2007

우리나라의 주요 무역항을 입${\cdot}$출항하는 선박의 증가, 대형화${\cdot}$고속화 및 새로운 항만의 건설 등은 해양교통 환경변화에 큰 변화를 가져오고 있다. 이러한 상황에서 항로에 설치된 등부표의 기능을 재검토하는 것이 요구되고 있다. 또한 이용자 중심의 서비스 향상 및 해상교통 안전 확보를 위한 대책 마련이 필요하다. 등부표는 안전항행을 도모하여 해양사고를 미연에 방지하는 역할을 수행 하지만 이의 배치와 관련한 연구가 미진하다. 따라서 본 논문에서는 연구의 일환으로서 국내 주요 무역항만을 출입하는 선박의 동부표 이용자들을 대상으로 등부표 배치에 관련한 선호도를 설문조사하여 분석하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2009.10a
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• pp.229-230
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• 2009

1992년 '제1차 천국무역항 항만기본계획'이 수립된 이후 2001년 제2차 계획이 수립되었고 2010년 3차 계획 수립을 앞두고 있다. 또한 10년 단위의 기본계획과 함께 항만 환경 변화에 능동적으로 대응하기 위한 보완적인 계획으로서 5년 단위의 수정계획이 1999년 및 2006년에 수립되었다. 이러한 계획들은 우리나라 무역항 개발의 근거가 되기 때문에 국내의 환경 변화를 직시하고 미래를 예견하여 현실적인 내용을 담아야 한다. 그러나 그 동안 수립되었던 계획들을 물동량 예측과 항만개발 방향 설정에 있어서 현실과 큰 차이를 보여왔다. 따라서 본 논문은 제 1차 및 2차 전국무역항 항만기본계획 및 수정계획들을 검토하여 항만정책의 실효성을 평가하는 것을 주목적으로 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.268-269
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• 2018

울산항은 국내 최대의 액체화물 거점항만으로 지속적인 물동량 증가에도 불구하고 다른 무역항에 비해 정박지가 협소하고 날씨의 영향으로 해양사고 발생 개연성이 매우 높은 실정이다. 울산항의 지형학적인 특성과 선박 교통량을 고려하여 울산항 정박지의 전반적인 실태를 분석하고, 정박지 투묘 선박의 안전성 확보를 위해 효율적인 정박지 운영 및 개선방안을 제시하였다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.19 no.2
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• pp.164-170
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• 2013

With the introduction of increasingly large-sized ships, the conditions of main domestic port facilities remain the same as in the past. So, there is high probability that marine traffic congestion can occur at the certain ship's routes. The standard ship's length used to assess the marine traffic congestion of domestic trade port is 70 meters. It has been in use for the last 30 years, so, its usefulness is highly recommended for review. This study deeply analyzes the tendency of ship's dimensional changes according to recent enlargement of ship's size by utilizing the particulars of 60,000 ships saved in domestic Port-MIS database and suggests the standard ship's length by figuring out the correlation between length of ship and gross tonnage. In addition, the basis of statistical data on the ship's tonnage in domestic trade over the last five years suggests the standard ship's length by deriving the reference point of cumulative incidences that occupy more than over 50 %, except for small vessels. It is necessary to consider the characteristic of each domestic trade port before the actual application of suggested standard ship's length.

• 해운
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• no.11 s.10
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• pp.27-40
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• 2004

• Journal of Korea Port Economic Association
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• v.32 no.3
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• pp.21-33
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• 2016

This paper examines the effect of strategic trade policy on port ownership structures (nationalization or privatization) when two firms compete with each other in reciprocal markets. Furthermore, we analyze firms profits, port charges, ports profits and social welfare when ports are privatized or nationalized under tariff regime and under free trade regime respectively. Thus, we find that (i) under tariff regime, port nationalization is a dominant strategy regardless of transport costs. (ii) the effect of high port charges brings higher port profits than the effect of high trade volume. (iii) irrespective of trade regime, when transport cost is relatively low, port nationalization increases social welfare, while two government prefer free trade agreement to tariff regime when transport cost is sufficiently high regardless of port ownership structures.

• Journal of the Korean Society of Marine Environment & Safety
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• v.16 no.1
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• pp.107-113
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• 2010

The criteria of tugboat requirement in domestic trading ports have been determined by the administrator of regional maritime affairs and port office on the basis of the regulations for the tugboat operations and management. But, there is a little confusion that the criteria of tugboat requirement and method for calculation of them are different from port to port and total power calculated on the basis of power per tugboat requirements by the number of tugs is not in accordance with total required power for the use of tug in several ports. The comparison of tugboat requirements among domestic major ports showed that it should be necessary for the criteria to be made in unified form. Because the current criteria are only on the basis q the ordinary condition with wind velocity under 10m/s, the criteria on the condition of the wind velocity over 10m/s are suggested to be necessary for the precautions against a disaster such as unexpected strong winds or typhoon.

• Journal of the Korean association of regional geographers
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• v.22 no.4
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• pp.792-808
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• 2016

Due to the high importance of foreign trade in the national economy, Korea has a lot of ports designated as trade ports compared to the small land size. However, because of the poor utilization results, some small trade ports have been criticized for wasteful financing due to redundant investment in SOC. This is because the characteristics and comparative advantage of foreign trade in trade ports have not been analyzed in detail by region. Therefore, this study analyzes the patterns and types of change in the size of trade, number of cargo items handled, and the number of trade target countries in the past 20 years for 19 domestic small trade ports using the time-series cluster analysis technique. As a result of analysis, Korean small trade ports were classified into five growth pattern types according to the analysis index, and characteristics and implications for each type could be derived. Today, as the foreign trade environment changes drastically and the importance of balanced regional development is emphasized, it is very important to study the growth types and implications of small trade ports and the results of this study are expected to provide meaningful implications for regional port development and operation in the future.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.21 no.5
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• pp.345-356
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• 2009

Tetrapod has been used as the armor blocks of most rubble mound breakwaters constructed in Korea. The Hudson formula has been widely used in the design of breakwater armor blocks in Korea. In the present study, we calculate the load and resistance partial safety factors of the Hudson formula for Tetrapod armors. The partial safety factors were calculated for the typical breakwater cross-sections of 12 trade harbors and 8 coastal harbors in Korea. The mean and standard deviation of them were also calculated. The mean values were compared with the partial safety factors of US Army (2006). The load and resistance factors are slightly smaller and larger, respectively, than the US Army values. However, the overall safety factors obtained by multiplying the load and resistance factors are close to the US Army values. The result of the present study could be used as the basic data to propose authorized partial safety factors in the future.

• Korea Trade Review
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• v.41 no.3
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• pp.27-42
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• 2016

This study is to investigate seaport clustering by using meta-frontier and cross-efficiency models. Data covers the 13 Asian ports during 2009, 2010 and 2013 with 3 inputs(depth, total area, and number of cranes) and 1 output(TEU). Correlations coefficient from cross-efficiency matrix are used for measuring clustering dendrogram. After that, meta-frontier analysis for investigating whether the clustering using cross-efficiency method increases the meta-efficiency. Empirical main results are as follows: First, group efficiencies of Busan, Incheon, and Gwangyang ports are increased. Second, meta and group efficiencies of China ports are greater than those of Korean ports. Third, distortion of technology gap of Gwangyang is lower than that of Busan and Incheon. Fourth, Gwangyang, clustering with Ningbo, Chingtao, Tokyo and Caosung ports in 2009 and with Dubai port in 2013 can increase the efficiency. Fifth, to enhance the efficiency, Busan port should be clustered to group 2 in 2010 and group 1 in 2013, and Incheon port clustered to group 2 in 2010 and 2013. Fifth, it is empirically investigated that Busan, Incheon and Gwangyang ports can increase the efficiency by using Cross-efficiency and Meta-frontier models. Port policy planner should promote the clustering policy for Busan with Hong Kong, Shanghai, and Singapore, Incheon and Gwangyang with Chingtao, Nagoya, Ningbo, Tokyo, and Kaoshung ports.