• 한국건설관리학회논문집
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• 제9권3호
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• pp.136-145
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• 2008

현행 규정에 따라 기성을 지급하였어도 공공공사 발주자가 공사대금 이외에 금융비용이라는 추가비용을 부담해야 되는 경우가 발생되고 있다. 본 연구는 공공공사 건설과정에서 발생하는 금융비용을 파악하기 위하여 실제 공공공사 기성지급사례를 토대로 다음과 같은 연구결과를 도출하였다. 첫째 금융비용 발생원인을 분석하였고, 둘째 전체 금융비용 규모를 파악하고 이 중 발주자에게 미치는 영향을 파악하였으며, 셋째 금융비용이 발생시점에 따라 전체 금융비용에 미치는 영향을 비교 분석하였다. 본 연구에서 2건의 공공공사 금융비용 사례 분석결과 금융비용을 최소화하기 위해서는 입찰설명서 등 공사 착수 전에 공정과 기성관리 세부기준을 설정해야 한다. 또한 금융비용은 발생시점에 비례하여 발생하므로 공사초기의 공정관리에 집중해야 하는 것으로 분석되었다. 공공기관 건설공사 기성이 매년 2조 3천억 이상 발생되고 있지만 건설과정에서 기성지급 시 발생되는 금융비용이 얼마나 되는지 산출된 연구결과가 없어 그 규모를 인식하지 못하였다. 따라서 본 연구결과를 통하여 공공공사 시 기성지급으로 발생되는 금융비용 규모를 인식하고 관련규정의 보완과 대안을 도출해 내는 데 연구의 목적이 있다.

• 한국건축시공학회지
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• 제12권5호
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• pp.518-527
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• 2012

This study uses a hybrid estimation tool for effective cost data management of building projects, and develops a realistic cost estimation model. The method makes use of newly available information as the project progresses, and project cost and percentage progress are analyzed and used as inputs for the developed system. For model development, case-based reasoning (CBR) is proposed, as it enables complex nonlinear mapping. This study also investigates analytic hierarchy process (AHP) for weight generation and applies them to a real project case. Real case studies are used to demonstrate and validate the benefits of the proposed approach. By using this method, an evaluation of actual project performance can be developed that appropriately considers the natural variability of construction costs.

• 한국안전학회지
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• 제21권5호
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• pp.53-59
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• 2006

Standard safety management costs can not be applied to each site with same rate, it is very difficult, because it depends on the experience, work method, work kind, work progress schedule, and hazard level of each construction company. Therefore, this study is to find out hazard level of each work kinds through questionnaire and interview and investigate analyze the status which standard safety management costs have been used. Also, this study is to show reasonable rates of standard safety management costs in construction industry and to set up countermeasures against those problem after reviewing its status in korea with in Japan and Europe. The domestic system of standard safety management costs is not considered in the foreign country, while only related subjective items have been investigated and evaluated for this study. This study is to investigate eleven project kinds of domestic system, first, and to investigate eleven items of apartment bldg, office, civil work such as bridge, tunnel, dam, plant etc, secondly. Additionally, three items of gymnasium, railway, particular steel tower are investigated in this study. Also this study is to investigate and analyze performed costs of presently processing worker finished work so that it shows a new reasonable rate against standard safety management costs in construction industry, in order to make basial data and material to be systemized.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.213-217
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• 2009

Weather factors affect cost increases and progress management under construction. Because progress schedule is delayed by weather factors, the construction costs are increased. It is an essential element to control the progress schedule applying weather factors to the progress management. This study applies monthly working-day percentages which is estimated by databases of past weather information to RTPM system. Through do progress management in construction projects exactly, will try to minimize risk of process control that do that is to weather factors. Also, will compare calamity in safety supervision side that do that is to weather factors beforehand. Based on the factors and the expected impact of factors together with the weather data during the last 50 years in Seoul region gathered from Korea. Through it, calculated number of month working day of RCA's structural steel work. Studied way that apply to RTPM system.

• 한국안전학회지
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• 제22권5호
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• pp.33-40
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• 2007

Standard safety management costs can not be applied to each site with same rate, it is very difficult, because it depends on the experience, work method, work kind, work progress schedule, and hazard level of each construction company. Therefore, this study is to find out hazard level of each work kinds through questionnaire and interview and investigate analyze the status which standard safety management costs have been used. Also, this study is to show reasonable rates of standard safety management costs in construction industry and to set up countermeasures against those problem after reviewing its status in korea with in Japan and Europe. This study is to investigate eleven project kinds of domestic system, first, and to investigate eleven items of apartment bldg, office. Also this study is to investigate and analyze performed costs of presently processing worker finished work so that it shows a new reasonable rate against standard safety management costs in construction industry, in order to make basical data and material to be systemized.

• 한국중재학회지:중재연구
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• 제31권4호
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• pp.3-27
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• 2021

Recent Discussions on Third-Party Funding (TPF) in the forums of UNCITRAL, ICSID, and ICC are making different levels of progress towards finalizing the rules. However, they also have similarities in dealing with legal issues related to TPF, such as definitions, disclosure, allocation of costs, and security for costs. International treaty tribunals have dealt with TPF issues, too. When it comes to the standing of funded claimants, the tribunal in Ambiente v. Argentina did not accept the argument that claimants were controlled by the TPF provider. Concerning the scope of the disclosure, the tribunal in Tennant v. Canada ordered the disclosure of the TPF arrangement. As for the allocation of costs, the tribunal in Kardassopoulos v. Georgia noted that there is no reason why a TPF agreement should be treated differently than an insurance contract. Regarding the security for costs, the tribunal in South American Silver v. Bolivia considered the mere existence of a third-party funder as not an exclusive factor to determine costs in the earlier stage of the proceedings. Lastly, relating to TPF as a ground for annulment, the tribunal in Teinver v. Argentina declined the respondent's argument that the TPF agreement was the vehicle of fraud.

• 산업경영시스템학회지
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• 제14권24호
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• pp.7-13
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• 1991

Recently, in FMS composing of various automatic equipments, the machines with lower operating costs, and with higher operating costs and replacement costs resulting from deterioration have been appearing successively as a result of rapidly advances in technology. "Control Limit Policy" [1] by using Markov decision policy, a kind of optimal economic replacement decision, well reflects and represents this environment. In this paper, it is reviewed that the decision method of the forecasted replacement alternatives in planning horizon under technological advances is derived. The proposed method is applied to a numerical example and some characteristics are examined by sensitivity. It is clarified that the method is relatively insensitive to changes of parameters at the present decision. decision.

• 대한간호학회지
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• 제46권4호
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• pp.562-571
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• 2016

Purpose: In this study the costs and benefits of a home health care program were examined to evaluate the economic feasibility of the program. Methods: The study participants included 349 patients in the community who had been registered at a home health care center for 5 years. The costs and benefits of the program were analyzed using performance data and health data. The benefits were classified as the effects of pressure ulcer care, skin wound care and catheters management. The program effect was evaluated on the change of progress using transition probability. Benefits were divided into direct benefit such as the savings in medical costs and transportation costs, and indirect benefits which included saving in productivity loss and lost future income. Results: Participants had an average of 1.82 health problems. The input cost was KRW 36.8~153.3 million, the benefit was KRW 95.4~279.7 million. Direct benefits accounted for 53.4%~81.2%, and was higher than indirect benefits. The net benefit was greater than 0 from 2006 to 2009, and then dropped below 0 in 2010. Conclusion: The average net benefit during 5 years was over 0 and the benefit cost ratoi was over 1.00, indicating that the home health care program si economical.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1158-1164
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• 2007

Recently, the demand on the practical application of life-cycle cost effectiveness for design and rehabilitation of civil infrastructure is rapidly growing unprecedentedly in civil engineering practice. Accordingly, it is expected that the life-cycle cost in the 21st century will become a new paradigm for all engineering decision problems in practice. However, in spite of impressive progress in the researches on the LCC, so far, most researches in Koreahave only focused on roadway bridges, which are not applicable to railway bridges. Thus, this paper presents the formulation models and methods for uncertainty-based LCCA for railroad bridges consideringboth objective statistical data available in the agency database of railroad bridges management and subjective data obtained form interviews with experts of the railway agency, which are used to anew uncertainty-based expected maintenance/repair costs including lifetime indirect costs. For reliable assessment of the life-cycle maintenance/repair costs, statistical analysis considering maintenance history data and survey data including the subjective judgments of railway experts on maintenance/management of railroad bridges, are performed to categorize critical maintenance items and associated expected costs and uncertainty-based deterioration models are developed. Finally, the formulation for simulation-based LCC analysis of railway bridges with uncertainty-based deterioration models are applied to the design-decision problem, which is to select an optimal bridge type having minimum Life-Cycle cost among various railway bridges types such as steel plate girder bridge, and prestressed concrete girder bridge in the basic design phase.

• 한국건설관리학회논문집
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• 제19권5호
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• pp.43-52
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• 2018

일반적으로 공사비에 대한 연구는 직접비 위주로 행해졌으며, 간접비를 면밀하게 산정하는 모델에 대한 연구가 부족하다. 본 연구의 목적은 국내 건설시장에서 큰 축을 차지하는 아파트 건설공사 현장의 현장관리비를 예측하기 위한 모델을 제시하는 것이다. 아파트 건설공사 현장 다수의 전체공사기간 동안의 실비사용 데이터를 분석하여 곡선접합 분석을 통해 공정률별 1일당 현장관리비를 도출할 수 있는 9차방정식을 제안하였으며, 이를 활용하여 300억 규모의 공사의 경우의 현장관리비를 추정하는 결과를 보여줌으로서 활용가능성을 설명하고 있다. 선행연구에서는 총 현장관리비의 규모의 변화패턴을 직접적으로 확인할 수 있는 다항식을 도출한 사례는 없었던 점에 비추어 본다면, 본 연구에서 제시한 모델은 그 편의성과 면밀성에 합리적 근거를 토대로 현장관리비를 예측할 수 있다는 점에서 연구의 기여도가 있다.