• 제목/요약/키워드: Transportation

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철도분야 지능형교통체계 도입 전략 (Railway strategies for introducing intelligent transportation system)

  • 이준;문대섭;엄진기;김동희;진일경
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2011년도 춘계학술대회 논문집
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    • pp.1544-1549
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    • 2011
  • Transportation Efficiency Act of 2009 System National Integrated Transportation System Efficiency Act and the revised Road Traffic in the center of the Intelligent Transportation Systems rail, sea and air transport sector is expanding in various areas to promote business and Industry is planning to. Accordingly, the introduction of Intelligent Transportation Systems Outlook and Direction of the railway sector and to provide a comprehensive introduction of Intelligent Transportation Systems rail sector has raised the need. In this paper, the introduction of Intelligent Transportation Systems rail sector strategy is presented as follows. First, the rail users a convenient rail-centric information system used. Second, the reliability and value-added operating system built for the creation of high-tech rail. Third, crime and accidents are implemented in a safe railway. The results of this paper, the railway sector through the national Intelligent Transportation Systems to develop and introduce strategies to provide operational direction is expected to be present.

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수송체계의 효율화를 통한 에너지절약방안에 관한 연구 -화물윤송을 대상으로- (A Study on the Energy Saving Plan by the Utilization of transport System -Concerned to Cargo transportation-)

  • 이석태
    • 한국항해학회지
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    • 제9권2호
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    • pp.27-41
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    • 1985
  • The transportation productivity is the throughput of utility per locations of resources and is able to be brought forth by using transportation mode. Therefore, Oil energy is necessary for using the transportation mode that is mainly consisted of four parts trucks, railroad, ship and aircraft, and Oil quantity used for such modes is not respectively same. Noticing Such a Point, the purpsoe of this paper is to reaserch the transportation mode of convertable cargoes and to minimize energy consumption quantity by adopting such a mode. We must ttend to Energy-Intensity, Transportation, Distance and cargo quantity for selecting the transport mode to energy consumption and the minimization of transportation energy consumption is concluded in the next LP Problem. As above mentioned, we can find the solution of Xij by the LP when Xij is transportation cargo per routes, and fullfil the minimization of Energy Consumption.

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물류시스템에서 수송크기와 물류센터의 위치 (The Transportation Size and the Location of Distribution Centers in a Distribution System)

  • 장석화
    • 산업경영시스템학회지
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    • 제30권3호
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    • pp.12-19
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    • 2007
  • This paper is to determine the transportation size and the location of distribution centers to minimize logistics cost in a distribution system where products are transported from the distribution centers to the retailers. Logistics cost consists of the fixed cost of distribution centers, the transportation cost from the distribution centers to the retailers and the inventory holding cost in the retailers. The logistics cost is affected by the transportation size and the location of distribution centers. The transportation size affects transportation cost and inventory holding cost. The location of distribution centers affects the transportation cost. A mathematical model is formulated and the algorithm is developed. A numerical example is shown to explain the problem.

A Study on Competitiveness of Major Container Terminals in Korea and China using FCM and TOPSI

  • NGUYEN, Dai Duong;Park, Gyei-Kark;Choi, Kyoung-Hoon
    • 한국항해항만학회지
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    • 제42권2호
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    • pp.117-126
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    • 2018
  • Container port is one of the most vital link of the transportation chain that plays an important role in trading with other countries. Having a proper understanding of port operations could change the role of the port from a transportation node to an efficient point in a transportation chain. Development of transportation chains, logistics and progress of these networks have enhanced the sustainable condition and level of transportation. Therefore, evaluating the competitiveness of ports is obligatory for port users to make a decision in investment or exploitation. This paper introduces the use of Fuzzy C-means and TOPSIS for competitiveness comparison among a sample of container terminals in Korea and China and determine how to improve Korean port competitiveness and particularly in Busan port.

항공교통문화지수 개발에 관한 연구 (A study on the development for an air transportation cultural index)

  • 이강석
    • 한국항공운항학회지
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    • 제13권3호
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    • pp.61-72
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    • 2005
  • The main purpose of this study is to develop air transportation cultural index which is able to estimate the level of them. Generally Speaking, air transportation cultural, a compound word of 'air transportation' and 'culture', is a substantial entity consisting knowledge, art, morality, legality, cultivation, customs, and etc, which comes from aircraft operation sector, airport operation/management sector and user sector. They are classified in a primary scope, as aircraft operation sector relating to flight operation, airport operation/management sector and user sector. The research and analysis were taken approximately 4 months, from June 2004 to October 2004. To evaluate the index, the detailed item for three categories were chosen and quantified. The grades for each items were induced from calculation formula for air transportation cultural index by applying weight values. The final grade of Korea's air transportation cultural index recorded 63.19 points.

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교통방재시스템의 구축 방향 및 활용에 대한 연구 (The Research of Establishing Direction and Application of Transportation Disaster Prevention System)

  • 이상화;손영태
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2008년도 정기총회 및 학술발표대회
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    • pp.309-312
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    • 2008
  • In Korea, although the damage from disaster (flood and storm) is increasing, the early stage warning and countermeasure are not in operation rapidly. The research areas of transportation engineering arenot diverse, so once the road is flooded and interrupted, drivers, the system operators and managers are in panic, and nearby roads are in terrible traffic congestion. In case of Korea, the research of evacuation is highly needed, because it is very necessary and easy to apply in real field. In this paper, we establish the concept of transportation disaster prevention system and suggest the directions of it. In addition, based on this research, we choose one example of disasters and establish an example of the transportation disaster prevention system. Our goal is to make steps; prevention, preparation, countermeasure and restoration in the view of minimizing on social chaos and damages emphasizing aspect of transportation countermeasure. This research will be the good precedent of approach, analysis and countermeasure when the disasters are occurred, and a basis of transportation disaster prevention system and manual in Korea.

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Using the GA in the Public-Transportation Route-selection Process

  • JUN, Chul-min
    • Korean Journal of Geomatics
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    • 제3권2호
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    • pp.123-128
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    • 2004
  • As the applied fields of GIS are expanded to the transportation, developing internet-based applications for transportation information is getting attention increasingly. Most applications developed so far are primarily focused on guidance systems for owner-driven cars. Although some recent ones are devoted to public transportation systems, they show limitations in dealing with the following aspects: (i) people may change transportation means not only within the same type but also among different modes such as between buses and subways, and (ii) the system should take into account the time taken in transfer from one mode to the other. This study suggest the framework for developing a public transportation guidance system that generates optimized paths in the transportation network of mixed means including buses, subways and other modes. For this study, the Genetic Algorithms are used to find the best routes that take into account transfer time and other service-time constraints.

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Topology optimization of tie-down structure for transportation of metal cask containing spent nuclear fuel

  • Jeong, Gil-Eon;Choi, Woo-Seok;Cho, Sang Soon
    • Nuclear Engineering and Technology
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    • 제53권7호
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    • pp.2268-2276
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    • 2021
  • Spent nuclear fuel, which can degrade during long-term storage, must be transported intact in normal transport conditions. In this regard, many studies, including those involving Multi-Modal Transportation Test (MMTT) campaigns, have been conducted. In order to transport the spent fuel safely, a tie-down structure for supporting and transporting a cask containing the spent fuel is essential. To ensure its structural integrity, a method for finding an optimum conceptual design for the tie-down structure is presented. An optimized transportation test model of a tie-down structure for the KORAD-21 metal cask is derived based on the proposed optimization approach, and the transportation test model is manufactured by redesigning the optimized model to enable its producibility. The topology optimization approach presented in this paper can be used to obtain optimum conceptual designs of tie-down structures developed in the future.

해운.항만산업의 경제적 파급효과 분석 (An Analysis of the Economic Effects of Marine Transport and Port Industry)

  • 정분도;심재희
    • 한국항만경제학회지
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    • 제27권3호
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    • pp.311-329
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    • 2011
  • 해운 항만산업은 수출입의 최전선이자 무한한 부가가치를 창출하는 국가적 산업이다. 최근의 세계 경제위기로 인해 항만물동량이 둔화되는 등 우리의 해운 항만산업의 어려움을 겪고 있다. 이러한 어려움은 이를 어떻게 준비하고 대응하느냐에 따라서 새로운 도약을 위한 기회가 될 수 있다. 해운 항만 업체 스스로 끊임없는 노력을 통해 경쟁력을 강화한다면 머지않아 국내에도 외국 해운 항만업체와 당당하게 경쟁할 수 있는 대표적인 업체가 생겨날 것이다. 따라서 본 연구에서는 국내 해운 항만 산업의 경제적 파급효과를 산업연관표를 이용하여 살펴보고자 한다. 산업연관표를 이용하여 해운 항만산업의 경제적 효과를 요약하면, 첫째, 2005년 생산유발계수는 항만시설이 1.958로 가장 높고 다음으로 연안 및 내륙수상운송 1.857, 하역 1.842, 기타 운수관련서비스 1.768, 보관 및 창고 1.676, 수상운수보조서비스 1.422, 외항운송이 1.283 순으로 나타났다. 둘째, 부가가치유발계수를 살펴보면, 수상운수보조서비스 0.924, 하역, 보관 및 창고 0.902, 기타 운수관련서비스 0.885, 항만시설 0.832, 연안 및 내륙수상운송 0.752, 외항운송이 0.258로 가장 낮게 나타났다. 셋째, 2005년 중 수입유발계수를 보면, 외항운송 0.742, 연안 및 내륙수상운송 0.248, 항만시설 0.168, 기타 운수관련서비스 0.115, 하역, 보관 및 창고 0.098, 수상운수보조서비스가 0.076으로 가장 낮게 나타났다. 넷째, 기타 운수 관련서비스(1.125)와 하역(0.882)의 감응도계수가 높고, 항만시설과 외항운송이 0.514로 감응도계수가 낮다. 항만시설(1.006)과 연안 및 내륙수상운송(0.954), 하역(0.946), 기타 운수관련 서비스(0.908)의 영향력계수가 높고, 반면 외항운송(0.659)의 영향력계수가 낮다.

정보자료

  • 한국도로교통협회
    • 도로교통
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    • 통권90호
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    • pp.77-101
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    • 2002
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