• 한국IT서비스학회지
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• 제11권3호
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• pp.1-16
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• 2012

This paper is aimed to present a fuzzy decision-making approach to deal with disaster recovery priority decision problem in information system. We derive an evaluation approach based on TOPSIS(Technique for Order Performance by Similarity to Ideal Solution), to help disaster recovery priority decision of total information system for port logistics in a fuzzy environment where the vagueness and subjectivity are handled with linguistic terms parameterized by trapezoidal fuzzy numbers. This study applies the fuzzy multi-criteria decision-making method to determine the importance weight of evaluation criteria and to synthesize the ratings of candidate disaster recovery system. Aggregated the evaluators' attitude toward preference, then TOPSIS is employed to obtain a crisp overall performance value for each alternative to make a final decision. This approach is demonstrated with a real case study involving 4 evaluation criteria(system dependence, RTO, loss, alternative business support), 7 information systems for port logistics assessed by 5 evaluators from Maritime Affairs and Port Office.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2002년도 추계공동학술대회논문집
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• pp.45-51
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• 2002

전 세계의 항만들은 급속한 해운환경의 변화에 따라 컨테이너 화물을 확보하기 위한 경쟁이 치열해지고 있다. 특히 컨테이너화물을 유치하기 위한 이러한 경쟁은 항만시설을 현대화하기 위한 대규모 자본 투자와 항만운영·관리의 효율성 개선을 야기했다. 그러나 각 항만들의 지속적인 대규모 투자로 인하여 일반적인 운영으로는 더 이상 차별화 된 전략의 구축이 힘들어졌다. 이애 항만운영자들은 4P 믹스 전략과 같은 마케팅의 중요성을 인식하게 되었다. 본 논문은 이런 관점에서 현재 마케팅의 전략의 핵심역량으로 대두되고 있는 브랜드 가치를 환적항만을 대상으로 컨조인트 분석을 이용하여 평가하였다. 분석결과는 항만의 브랜드는 환적항만 선택에 있이 상당한 영향을 미치는 것으로 평가되었다 이는 항만의 브랜드만으로 유치할 수 있는 환적화물이 상당하다는 것을 의미한다. 따라서 이러한 브랜드의 확장을 위해서는 지속적인 포트 세일즈를 통한 고객 충성도를 유발해야 한다

• 무역학회지
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• 제45권6호
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• pp.99-112
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• 2020

It is no exaggeration to say that today's world economy is dependent on international trade, which is the result of inter-state transactions. As the vast majority of international goods transport is transported by international shipping, interest in the seaborne transport field is natural in international and trade studies. In particular, in the case of international shipping, as it is the basis of typical international transportation, changes in international shipping due to the innovation of technology may have an effect on international trade norms. In this study, as a result of evaluating port preference in a hypothetical scenario by using the Design of Experiments method, bunkering as well as port service, which is traditionally important, was identified as a major competitive factor of future ports. It has been revealed that, above all, the port to respond to the future is the continued importance of port services and the supply of ship fuel. Therefore, port authorities are providing implications that LNG bunkering infrastructure suitable for international environmental regulations is important.

• 한국항만경제학회지
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• 제33권4호
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• pp.37-58
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• 2017

설문조사 및 응답자의 지각을 바탕으로 하는 항만선택연구의 암묵적인 가정은 항만선택속성들의 선호크기가 선택행위에 비례적이라는 것이다. 그러나 항만선택 속성들도 직선만이 아닌 비선형적 특성을 갖을 수 있다. 본 연구는 항만선택연구에 성격이 유사한 카노모형을 원용하여 항만선택속성의 비선형적 특성을 확인 하였다. 연구결과 선사의 항만선택속성들중 복합운송연계성과 항만규모 등이 당연특성으로 평가되는 등 여러 속성들이 비선형적 특성으로 평가되었다. 따라서 항만공사와 운영사 등의 항만 서비스제공자들은 선사들의 비선형적 항만선택특성을 반영한 항만운영전략을 구축해야 할 것이다. 본 연구가 항만선택 특성을 탐색적으로 분석하였기 때문에 추후 국내외 항만 및 이해당사자들을 대상으로 한 추가적인 검증연구가 필요하다. 또한 분석 및 전략수립에 활용한 카노모형 및 중요도 선택분석방법도 명확한 특성의 파악과 전략지침의 제시가 가능하도록 개선할 필요가 있다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2004년도 Asia Navigation Conference
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• pp.54-63
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• 2004

There are two principal routes for the Asia-North America containerized cargo, that of Asia-West Coast and Asia-East Coast. On the West Coast, the Asia-Los Angeles, dominate the commerce, whereas on the Asia-East Coast it's the Panama Canal. Each of these routes has different characteristics. All are similar in that each is the door to the commerce of containerized cargo originating in Asia; each combines maritime and overland transportation; each has important intermodal connections and is able to distribute cargo throughout the West and East Coasts of the United States. Each route also has its port of preference that has the necessary infrastructure, equipment and intermodal connections. For example, in the case of the Port of Los Angeles, in spite of some of its advantages, it has several serious problems due to the interminable containerized cargo traffic that must be solved rapidly and satisfactorily in order to progress. In this paper, we would like to show the problems of two main routes.

• Journal of Korea Trade
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• 제23권2호
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• pp.59-75
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• 2019

Purpose - The International Maritime Organization (IMO) has promulgated strict regulations on emissions in the maritime shipping industry. LNG (Liquefied Natural Gas) is, therefore, recognized as the optimal fuel alternative solution. The aim of this study is to select the most suitable location for an LNG bunkering port. This is formulated as a multiple-criteria ranking problem regarding four candidate ports in South Korea: the ports of Busan, Gwangyang, Incheon, and Ulsan. Design/Methodology/approach - An analysis employing the Consistent Fuzzy Preference Relation (CFPR) methodology is carried out, and the multiple-criteria evaluation of various factors influencing the location selection, such as the average loading speed of LNG, the number of total ships, the distance of the bunkering shuttle, and the degree of safety is performed. Then, based on the combination of both the collected real data and experts' preferences, the final ranking of the four ports is formulated. Findings - The port of Busan ranks first, followed by the ports of Gwangyang and Ulsan, with the port of Incheon last on the list. Originality/value - The Korean government could proceed with a clear vision of the candidate ports' ranking in terms of the LNG bunkering terminal selection problem.

• 한국항만학회지
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• 제10권2호
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• pp.7-15
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• 1996

A berth assignment problem has a direct impact on assessment of charges made to ships and goods. A berth can be assigned to incoming vessels and operated in tow different ways: as a common user berth, as a preference berth. A common user berth is a berth that any ship calling at a port may be permitted to use according to her time of arrival and to priorities as determined by the port authority. In this paper, we concerned with various types of mathematical programming models for a berth assignment problem to achive an efficient berth operation. In this paper, we focus on a reasonable berth assignment programming in a public container terminal in consideration of trade-off between server and user. We propose a branch and bound algorithm & heuristic algorithm for solving the problem. We suggest three models of berth assignment to minimizing the objective functions such as total port time, total berthing time and maximum berthing time by using a revised Maximum Position Shift(MPS) with which the trade-off between servers and users can be considered. The berth assignment problem is formulated by min-max and 0-1 integer programming and developed heuristic algorithm to solve the problem more easily instead of branch and bound method. Finally, we gave the numerrical solutions of the illustrative examples.

• 한국항만경제학회지
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• 제24권4호
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• pp.199-217
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• 2008

항만선택 결정요인에 관한 선행연구를 정리해보면 매우 다양한 연구에서 결정요인들이 도출되었으며, 다수의 연구에서 주요요인들이 중복적으로 활용되고 있음을 알 수 있다. 그러나 연구자별로 조사대상의 입장과 선호도에 따라 다소 연구결과가 다르게 나타나고 있다. 따라서 화주들의 광양항 선택 결정요인을 도출하기 위해서는 문헌조사와 함께 적합한 실증적 연구와 분석이 요구되어 진다. 본 연구에서는 화주가 항만을 선택할 때 미치는 결정요인들을 선행연구를 통해 도출한 후, 도출된 결정요인들이 광양항을 이용하고 있는 화주들에게 미치는 영향을 실증적으로 분석하였다. 이를 위해 광양항 이용화주들의 지속적인 광양항 이용 여부를 종속변수로 설정하였고, 선행연구에서 도출된 항만선택 결정요인인 항만서비스, 항만시설, 항만입지, 항만비용 등을 독립변수로 설정하였다. 독립변수의 주요 요인을 살펴보면, 항만서비스 요인으로는 하역능력, 선박기항 빈도, 항만체선, CFS의 처리능력, 통관서비스, 항만정보 서비스 등을 변수로 설정하였다. 또한, 항만시설 요인으로는 항만의 규모, 적절한 하역장비의 보유, 화물의 손상 및 멸실 빈도 등을 변수로 설정하였으며, 항만입지 요인으로는 항만과의 접근성, 항만의 인지도 등을 설정하였다. 마지막으로 항만비용 요인으로는 내륙운송비, 항만시설사용료, 하역료, 무료장치기간, 인센티브 등을 변수로 설정하였다. 본 연구의 분석결과 광양항 이용 화주들은 항만서비스, 항만시설, 항만입지, 항만비용 요인에서 모두 광양항 선택에 영향을 미치고 있으며, 항만비용, 항만입지, 항만서비스, 항만시설 등의 순으로 중요도가 나타나고 있다. 이는 화주들이 항만시설보다는 항만비용과 항만의 입지, 항만서비스를 항만선택 시 주요한 고려요인으로 작용하고 있는 것으로 판단된다.

• 한국항만학회지
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• 제8권1호
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• pp.49-63
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• 1994

The introduction of high speed railway system a significant impact on the conventional inter-urban transport systems by inducing a significant traffic from the existing modes as well as generating a new traffic. It is also closely related to intra-urban transport systems as the inter-urban traffic has its origin and destination in a city. In the context of mode choice, for high speed transport systems, it has been argued that the accessibility is the most important attribute conceived by users. Thus this study attempts to analysis the importance of the accessibility for the planned high speed railway systems particularly with respect to the location of Busan Station. For this Stated-Preference approach, which is considered appropriate for such study, is adopted, and disaggregate binary logit models for mode choice between the high speed railway and air service in Busan-Seoul corridor are developed. The elasticities for cost and service variables are also derived. The results disclose that cost is the most important which is inconsistent with most previous studies ; accessibility has considerable impact on the choice ; and frequency however has a little impacts. Concerning location of the high speed railway station the results suggest that the longer the access distance is, the more important the accessibility is. This implies that the connection of reliable access transport services such as underground are essential between the terminal and urban center.

• 한국항만경제학회:학술대회논문집
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• 한국항만경제학회 2006년도 국제학술대회
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• pp.1-12
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• 2006

As national economies globalize, demand for intercontinental container shipping services is growing rapidly, providing a potential economic boon for the countries and communities that provide port services. On the promise of profits, many governments are investing heavily in port infrastructure, leading to a possible glut in port capacity, driving down prices for port services and eliminating profits as ports compete for business. Further, existing ports are making strategic investments to protect their market share, increasing the chance new ports will be overcapitalized and unprofitable. Governments and port researchers need a tool for understanding how local competition in their region will affect demand for port services at their location, and thus better assess the profitability of a prospective port. We propose to develop such a tool by extending our existing simulation model of global container traffic to incorporate demand-side shipper preferences and supply-side strategic responses by incumbent ports to changes in the global port network, including building new ports, scaling up existing ports, and unexpected port closures. We will estimate shipper preferences over routes, port attributes and port services based on US and international shipping data, and redesign the simulation model to maximize the shipper's revealed preference functions rather than simply minimize costs. As demand shifts, competing ports will adjust their pricing (short term) and infrastructure (long term) to remain competitive or defend market share, a reaction we will capture with a game theoretic model of local monopoly that will predict changes in port characteristics. The model's hypotheses will be tested in a controlled laboratory experiment tailored to local port competition in Asia, which will also serve to demonstrate the subtle game theoretic concepts of imperfect competition to a policy and industry audience. We will apply the simulation model to analyze changes in global container traffic in three scenarios: addition of a new large port in the US, extended closure of an existing large port in the US, and cooperative and competitive port infrastructure development among Korean partner countries in Asia.