• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.576-582
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• 2013

Typical highway infrastructure systems include roadway pavement, drainage systems, tunneling, and other hardware components such as guardrails, traffic signs, and lighting. Tunnels in a highway system have provided significant advantages to overcoming various natural challenges including crossing underneath bodies of water or through mountainous areas. While only a few tunnel failure cases have been reported, the failure rate is likely to increase as these assets age and because agencies have not emphasized tunneling asset management. A tunnel system undergoes a deterioration life cycle pattern that is similar to other infrastructure systems. There are very few agencies in the United States implementing comprehensive tunnel asset management programs. While current tunnel asset management programs focus on inspection, maintenance, and operation safety, there is an increasing need for the development of a comprehensive life cycle tunnel asset management program. This paper describes a conceptual framework for a comprehensive tunnel asset management program. The framework consists of three basic phases including a strategic plan, a tactical plan, and an operational plan to provide better information to the decision makers. The strategic plan is a basic long term approach of tunnel asset management. The tactical plan determines specific objectives and the operational plan actually applies asset management objectives in practice. The information includes operational condition, structural condition, efficiency of the system, emergency response, and life cycle cost analysis for tunnel capital improvement project planning.

• 한국화재소방학회논문지
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• 제24권2호
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• pp.9-20
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• 2010

본 연구는 아직 초보수준인 국내기업의 업무연속성 유지를 위한 재해경감 활동계획 수립 및 실행에 대한 방향을 제시하였으며, 조기대응체계 구축을 통하여 어떠한 재난에도 안전을 기할 수 있는 기업 연속성 유지 방안을 모색하였다. 이를 실현하기 위하여 국내 재난관리 표준으로 채택된 사고대비 및 업무연속성 관리의 가이드라인을 분석하였고, 국내기업에 쉽게 적용할 수 있는 실행지침을 제시하였으며, A기업을 대상으로 재해경감활동계획 수립 및 정보기술을 활용하는 방안을 연구하였다. 특히 사고대비 및 업무연속성 관리의 가이드라인 5단계 주요 절차 중 계획수립단계의 위험 평가, 영향분석, 예방경감계획 및 대응관리계획 수립에 대한 모델을 제시하였고, 국내 재해경감활동이 활성화되기 위한 방안을 도출하였으며, 재난대응 수준을 향상시키기 위하여 필요한 정보기술 부분도 제시하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.507-513
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• 2004

In the railway system, transportation plan corresponds to a m aster 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 railway 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 these sub- planning processes, train can be con side red as a product for providing customer services, and customer demands and operational advantages must be considered. In this paper, we present an effect estimation system for the train capacity pattern in a train schedule, and the effect of capacity pattern can be expressed as minimum spilled demand, minimum train service cost, and maximum train revenue or profit.

• 대기
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• 제24권2호
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• pp.265-281
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• 2014

Currently, Korea is developing a Cheollian follow-on satellite program, named as Geostationary Korea Multipurpose Satellite 2 (GK-2), which consists of two satellites. One satellite (GK-2A) is dedicated to the meterological mission, while the second one (GK-2B) hosts two main payloads for the ocean and environmental application. As GK-2A is dedicated to the meteorological mission unlike Cheollian, there have been discussions on the possibility of transferring the responsibilities of the GK-2A program to the Korea Meteorological Administration. To help resolve any consumptive disputes or to find an efficient way for the GK-2A program, the events happened after the successful launch of the first meteorological satellite TIROS-1 in the U.S. in April 1960 are investigated. With the successful demonstration of usefulness of TIROS-1 for the meteorological applications, organizations such as the Weather Bureau and the Department of Defense, responsible for the real time application of the TIROS 1 data, strongly requested for an operational meteorological satellite program which resulted in the plan for the National Operational Meteorological Satellite System (NOMSS). The plan was strongly supported by Kennedy Adminstration and was put forwarded for the new program under the responsibility of Weather Bureau to the Congress. However, the responsible Committee on Science and Aeronautics sided with NASA and requested major revision of the responsibility. Due to many unfavorable conditions, Weather Bureau accepted the requests and signed with NASA on the agreement for the operational meteorological satellite. However, with the delay of Nimbus satellite which is planned to be used for the prototype of the operational satellite and changes of the unfavorable situations, the Weather Bureau could draw a second agreement with NASA. The new agreement reflected most propositions requested by the Weather Bureau for the NOMSS plan. Until now the second agreement is regarded as the basic principles for the operational meteorological satellite program in the U.S. This study investigates the backgrounds and processes of the second agreement and its implications for the GK-2 program.

• 한국항행학회논문지
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• 제14권1호
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• pp.127-133
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• 2010

운영연속성관리계획 수립을 위한 프로세스는 비즈니스 위험 평가, 취약성 분석, 업무영향분석, 업무복구전략수립, 상세계획수립, 계획실행, 테스트 및 유지관리(모니터링 포함)의 반복적인 사이클을 구성할 수 있다. 관리체계는 조직에 발생하는 재난 관리 체계를 개발, 수행, 개선, 유지와 업무 연속성 확보 체계를 위한 책임 의무사항 제공과 함께 재난예방, 재난대비, 재난대응, 재난복구를 위한 재난관리체계를 평가할 수 있다. 따라서 본 논문에서는 글로벌 환경변화에 대응하고 사회 안전 시스템의 구축과 운영의 극대화를 위하여 운영연속성관리, 위기관리체제 구축 및 위기관리통합체제 구축에 대하여 전반적으로 기술하고 조직 내에서 운영연속성관리를 이해하고 발전시켜 실행하기 위한 기틀을 제공하고자 운영연속성관리 관점에서의 위기관리통합시스템 구축 방법을 제안하였다.

• 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.

• International Journal of Reliability and Applications
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• 제15권1호
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• pp.23-50
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• 2014

This paper deals with formulation of optimum multi-objective modified step-stress accelerated life test (ALT) plan for Burr type-XII distribution under type-I censoring. Since it is impractical to estimate only one objective parameter after conducting costly ALT tests; also, it is not desirable to assume instantaneous changes in stress levels because of limited capacity of test equipments and the presence of undesirable failure modes, therefore, an optimum multi-objective modified step-stress ALT plan has been designed. The optimal test plan consists in determining the optimum low stress level and optimal time at which stress starts linearly increasing from low stress by minimizing the weighted sum of the asymptotic variances of the maximum likelihood estimator of quantile lifetimes at design constant stress. The method developed has been illustrated using an example. Sensitivity analysis has been carried out. Comparative study has also been done to highlight the merits of the proposed model.

• 농촌계획
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• 제25권1호
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• pp.89-97
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• 2019

This study aims to make a revitalizing plan for managing and maintaining of facilities which were installed after the rural development projects. The survey was conducted to examine some issues of operating facilities from the developing plan. There were some factors that should be considered in the establishment stage of the project plan when promoting rural development projects. Among them, the preservation and maintenance of rurality, consistency with business plans, connectivity with local resources, and ease of maintenance were less reflective than its importance. And for each facility, systematic consulting on appropriate scale and operational management plans and detailed planning is needed.. It's also necessary to plan action so that the local community can lead. The current or future rural development project will be succeeded when local governments support to strengthening their local groups or people's abilities.

• 대한산업공학회지
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• 제28권3호
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• pp.302-318
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• 2002

As facing the challenges from many competitors, the Office of Korea Postal Service has issued the fundamental plan of business renovation which includes the master plan of the information systems. In this paper we discuss the design of a to-be information system for postal service, which will be provided for the completion of the master plan. After briefly discussing the issues on developing information system and the current situation, we provide the design concept and the framework of the to-be system based on the bench marking and gap analysis with advanced systems. The to-be system consists of eight subsystems which can be grouped into three categories; intelligent systems, operational systems, and platforms. We develop detailed specification of each subsystem and provide an operational scenario. We also explain how the to-be system compatibly fits into an integrated information system, which will include the postal, banking, and management functions, to perform its ultimate role for the efficient postal service.