• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1327-1334
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• 2009

According to the construction plan of Samcheok electric power complex from year 2009 to year 2020, many people are interested in this area. This national project which invests about 8.6 trillion won will have great influence to rail transport considering current depression days. Samcheok electric power complex will be the largest plan in Korea, and it is necessary to have railroad construction plan as soon as possible considering the route change of domestic coal transport and the possibility of coal transport by rail from North Korea, Russia and China after reunification of Korean peninsula. Also, Samcheok electric power complex will be located in the east area railroad route and it is important to study about this area. This study will mention about the railroad route of east sea north line and Pohang $\sim$ Samcheok line, and review the prospect and strengthening method of coal transport by railroad according to the construction of Samcheok electric power complex.

• 항공우주시스템공학회지
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• 제5권1호
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• pp.24-29
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• 2011

The industry related to commercial space transport is growing rapidly as a futurity industry all over the world and America is leading them. If this trend continues, domestic individuals or private enterprises may plan for the commercial space transport business by adopting the advanced technology. Therefore it is necessary to make a law to control the business in our country for the industrial development and the growth related to commercial space transport. This paper provides outline for domestic commercial space transport law by the study and analysis of U.S. commercial space transport laws.

• 한국항공운항학회지
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• 제30권4호
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• pp.9-22
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• 2022

With the continuous increase in demand for air transport services and the growth of the air transport industry, the International Civil Aviation Organization (ICAO) and its member states are facing social demands to expand the capacity of the air transport system and improve the efficiency of its operation. ICAO developed the concept of Performance Based Navigation (PBN) for the purpose of solving problems related to the function and performance of the navigation system. Member countries established an implementation plan in accordance with the resolutionof the ICAO General Assembly, and South Korea established a Performance-Based Navigation implementation plan in December 2009. This paper evaluates the progress made so far based on Korea's Performance-Based Navigation implementation plan and proposes a development direction for Performance-Based Navigation based on changes in the international environment.

• Journal of Information Processing Systems
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• 제14권2호
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• pp.487-498
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• 2018

The purpose of the high-speed railway construction is to better satisfy passenger travel demands. Accordingly, the design of the train working plan must also take a full account of the interests of passengers. Aiming at problems, such as the complex transport organization and different speed trains coexisting, combined with the existing research on the train working plan optimization model, the multiobjective bi-level programming model of the high-speed railway passenger train working plan was established. This model considers the interests of passengers as the center and also takes into account the interests of railway transport enterprises. Specifically, passenger travel cost and travel time minimizations are both considered as the objectives of upper-level programming, whereas railway enterprise profit maximization is regarded as the objective of the lower-level programming. The model solution algorithm based on genetic algorithm was proposed. Through an example analysis, the feasibility and rationality of the model and algorithm were proved.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.211-214
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• 2004

In railway system, the transportation plan corresponds to master plan for transport services. This service plan must be constructed to minimize operational cost or maximize revenue considering transportation demands and resource capacities in the operation company, and includes several sub-planning activities such as train operation frequency plan, train (schedule) plan, train capacity assignment plan, and rolling stock requirement plan. In this paper, we present profitability evaluation system for current transportation plan. The proposed system can be used for evaluating profitability by estimating train service revenue considering customer demands.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1538-1545
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• 2004

In the train schedule plan corresponds to a master plan for transport services. This service plan must be constructed to minimize operational cost or maximize revenue considering transportation demands and resource capacities in the operation company, and it includes several sub-planning activities such as train operation frequency plan, train schedule plan, train capacity assignment plan, and rolling stock requirement plan. In this paper, we present profitability evaluation system for the current train schedule plan. The proposed system can be used for evaluating profitability by estimating train service revenue considering customer demands.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2005년도 춘계학술발표회
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• pp.23-29
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• 2005

우리나라 해운기업은 국제적인 경쟁력 속에서 해운강국으로 발전하기 위해서 정부 및 해운선사가 안전관리의 활성화로 해상에서의 인명보호 및 해양환경의 보호를 위해 가일층 노력하고 있는데 아직까지도 내항선에서의 안전관리에 관한 활성화방안이 미흡하여 내항선에 맞는 체계적이고 현실적인 안전관리 활성화방안이 절실하다. 따라서 본 연구에서는 오늘날 해운기업에서 국제적으로 중요시하는 안전 및 해양환경보호에 중점을 두고서 내항선 안전관리의 성과분석 및 활성화 방안의 개발 방향을 제시하였다.

• 한국컴퓨터정보학회논문지
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• 제11권2호
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• pp.101-110
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• 2006

다양한 지리 관측 기술 및 GPS 그리고 무선 통신 기술의 발달로 인해 시간에 따라 이동하는 여러 객체들의 변화를 추적하고 관리하는 것이 용이해지며, 지능형 교통 시스템, 물류 차량 관리 시스템 등이 활발히 개발되고 있다. 그러나 개발된 시스템에서 차량 운송 계획 평가 및 테스트를 할 경우 차량의 실제 데이터가 부족하기 때문에, 적절한 평가 및 다양한 테스트를 하기 힘들고, 실생활에 알맞은 시스템을 만들기 어려움 점이 있다. 이로 인해 대부분의 연구에서는 몇몇의 이동 객체 위치 데이터 생성기를 활용하고 있다. 그러나 기존의 이동 객체 데이터 생성기는 가우스 분포 및 도로 정보 등을 고려하여 데이터를 생성하기 때문에, 사용자가 물류 수송 계획 등에 활용하기 위해 의도한 시나리오에 따른 데이터를 생성하지 못하고 있다. 따라서, 이 논문에서는 사용자가 정의한 패턴에 따라 차량 위치 데이터를 생성하는 사용자 지정 시나리오 기반 이동객체 데이터 생성기를 설계 및 구현하였다. 제안된 데이터생성기는 사용자가 원하는 스케줄대로 차량의 좌표를 지정하여, 이동 계획에 적절한 차량의 데이터를 생성하고, 이를 패턴으로 저장하여 사용된 시나리오도 재사용될 수 있게 하였다.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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• pp.449-452
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• 2006

The main external force of the harbor in east coast is wave. So, wave is the important cause of wave induced current and sediment transport due to wave in planning harbor structures. Therefore, it must be considered not only to secure the harbor tranquility but also the sediment transport due to wave induced current in planning the harbor. In this study, we studied on the influences of construction procedure on harbor tranquility and siltation using annual coastal line data and bathymetry data near breakwater. And it suggests that the construction procedure for the harbor tranquility and the best way for the decrease of harbor siltation.

• 기술사
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• 제33권4호
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• pp.38-43
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• 2000

ITS(Intelligent Transport System), a technology based on the recent and remarkable development in control, communications, computer and general information technologies is generally expected to be the most promising solution to the traffic congestion on urban road networks. The objective of this paper is to suggest the plan of ITS information service, current trends of ITS strategy, and technology standards.