• Title/Summary/Keyword: AHP 문제점

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A Study on Road Safety Evaluation Method for Improvement Project of Two-Lane Road (2차로 시설개량 사업의 도로 안전성 평가방법 연구)

  • Shin, Chul-Ho;Kim, Nakseok
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.39 no.1
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    • pp.105-114
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    • 2019
  • Recently, the paradigm of road policy has been focused on user safety. Recently, the number of road facility improvement project has been continuously increased but the economic feasibility (B/C ratio) is insufficient. Therefore, it is necessary to select a reasonable road improvement project through accurate and objective analysis of the road safety evaluation. In this study, to develop a new road safety evaluation method, data were collected based on the current road safety evaluation method for 75 routes including national roads and provincial ones. Based on the collected data, problems were analyzed and utilized as the basic factors of the new road safety evaluation method. Therefore, in this study, traffic accidents were reflected as a general evaluation item by weighing to solve these problems, and the evaluation items were added from experiences and ideas of the local public officials. For each evaluation item, a reasonable weight was determined through AHP (Analytic Hierarchy Process) questionnaire evaluation with highway experts. In addition, the safety index was determined based on the evaluation criteria for each evaluation item. The criteria for evaluating the danger zone are determined by the overall safety index. Finally, the criteria for selection of road improvement projects based on the overall risk level were derived.

A Study on Technology Evaluation Models and Evaluation Indicators focusing on the Fields of Marine and Fishery (기술력 평가모형 및 평가지표에 대한 연구: 해양수산업을 중심으로)

  • Kim, Min-Seung;Jang, Yong-Ju;Lee, Chan-Ho;Choi, Ji-Hye;Lee, Jeong-Hee;Ahn, Min-Ho;Sung, Tae-Eung
    • The Journal of the Korea Contents Association
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    • v.21 no.10
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    • pp.90-102
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    • 2021
  • Technology evaluation is to assess the ability of technology commercialization entities to generate profits by using the subject technology, and domestic technology evaluation agencies have established and implemented their own evaluation systems. In particular, the recently developed technology evaluation model in the fields of marine and fishery does not sufficiently reflect the poor environment for technology development compared to other industries, so it does not pass the level of T4 rating, which is considered appropriate for investment. This is recognized as a challenge that occurs when the common evaluation indicators and evaluation scales used in other industries, and when the scoring system for T1 to T10 grading is similarly or identically utilized. Therefore, through this study, we intend to secure the appropriateness and reliability of the results of the comprehensive rating calculation by developing technology evaluation models and indicators that well explain the nine marine and fisheries industry classification systems. Based on KED and technology evaluation case data, AHP-based index weighting and Monte Carlo simulation-based rating system are applied and the results of case studies are verified. Through the proposed model, we aim to enhance the usability of R&D and commercialization support programs based on fast, convenient and objective evaluation results by applying to upcoming technology evaluation cases.

Study on Changes in Vessel Traffic Services Due to Introduction of Maritime Autonomous Surface Ships (자율운항선박 도입에 따른 선박교통관제 업무 변화에 관한 연구)

  • Dae-won Kim;Myeong-ki Lee;Sang-won Park;Young-soo Park
    • Journal of Navigation and Port Research
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    • v.47 no.6
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    • pp.430-436
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    • 2023
  • Study on Changes in Vessel Traffic Services Due to Introduction of Maritime Autonomous Surface ShipsThe development of technologies related to Maritime Autonomous Surface Ships (MASS) has been actively progressing since the mid-2010s, focusing on themes such as collision avoidance, route planning, digital twin, and communication technologies. On the other hand, research on land-based infrastructure connected with MASS, such as logistics systems, port facilities, and vessel traffic services, has relatively received less attention. This study analyzed impact of emergence of MASS on existing vessel traffic service operations and proposed changes in control operations to prepare for its impact. To do this, current vessel traffic service operations were analyzed and elements of MASS technology that could affect vessel traffic control were identified. A survey was conducted among vessel traffic controllers to identify items related to the control of MASS. Results analyzed using the AHP method showed that preparation for emergency response and communication methods with MASS were the most important. Based on this, we were able to derive detailed plans for basic MASS control procedures and emergency response procedures based on data communication within maritime traffic control areas. MASS control procedures proposed in this study are expected to be used as a solution to resolve issues related to traffic safety of MASS in coastal areas.

A Study on the Pre-feasibility study on the Cadastral Resurvey Project (지적재조사사업 예비타당성분석의 타당성 검토 - 경제성 분석을 중심으로 -)

  • Shin, Ji-Yoon;Kwak, Byung-Yong;Kim, Chang-Kee
    • Journal of Cadastre & Land InformatiX
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    • v.44 no.1
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    • pp.61-78
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    • 2014
  • The Cadastral Resurvey Project received 'Ineligible' determination by the first Pre-feasibility study in 2010. This is a result of the AHP analysis based on the policy and the economy validity. Especially, economic validity test uses mainly the Benefit-Cost Analysis. B-C Analysis has enclosed the limit to estimate the benefit which have the external effect. This study concentrated on the limit of the estimation the benefit on the Pre-feasibility study.

An Analysis of Relative Priorities for the Improvement of the Cultural Welfare Workers System (문화복지사 제도 활성화를 위한 상대적 우선순위 분석)

  • Kwon, Ki-Chang
    • The Journal of the Korea Contents Association
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    • v.16 no.9
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    • pp.149-159
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    • 2016
  • As a way to improve the quality of life following the increase of the national income, the importance of cultural welfare has been magnified. To actively cope with such a situation of the times, the government has operated the cultural welfare workers system; however, the reality today includes many problems such as lack of reliability and professionalism in the system. Thus, this thesis has as an objective to extract priorities for the improvement of the cultural welfare workers system through analyses of precedents, investigations by professionals and related systems, and to propose measures of improvement. The priorities, in case of higher levels, are in the order of: utilization of manpower, educational curriculum and test subjects, methods of license acquisition and training institution. In order for the cultural welfare workers system to be efficiently operated based on the priorities, the existing system needs to offer state-certified licenses and provide workers with institutional strategies for refresher education and utilization of manpower.

The fuzzy AHP approach to the relative importance of the deciding factors for admission screening - J university case study (입학사정 전형요소 상대적 중요도 결정에 대한 퍼지 계층분석적 접근방법 - ㅈ대학교 사례연구)

  • Choi, Kyoung-Ho;Han, Dong-Wook
    • Journal of the Korean Data and Information Science Society
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    • v.21 no.4
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    • pp.699-708
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    • 2010
  • Korean universities have selected candidates through admission officer system since 2009. However, the universities now have to settle several problems that they faced at the first stage of the system. Therefore, this research, taking the admission screening data of J University as examples, aims to discuss how differently the weight of the screening factors appears depending on the subjects related to college entrance, such as parents, teachers, and admission officers. The research indicates that the subjects have different perspectives about entrance screening requisites. Parents and teachers more value the student record that is a countable indicator than the letter of self-recommendation that is a uncountable indicator. However, it also indicates that admission officers take attitude against parents and teachers.

Schedule Risk Management of Reinforced Concrete Construction at the Preconstruction Phase (착공전 단계에서의 철근콘크리트 공사 공정리스크 관리 방안)

  • Ryu, Han-Guk;Kim, Sun-Kuk;Lee, Hyun-Soo
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.5 s.27
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    • pp.119-127
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    • 2005
  • According to the recent systemic changes such as construction market reduction, five days per week system, introduction of construction duration reduction bidding system and post-construction sale system, the bidding competition have been enhanced. However, there are many construction schedule risks which could delay construction completion. Without the proper identification of construction schedule risks and the structured construction schedule risk management, the competitive advantages of construction project could not be made. Previous researches to solve the problem have been focused on the construction schedule categorization, construction schedule management, and the system development to manage the construction schedule risk. Therefore, this study selected the reinforeced concrete construction as the studied work due to the major impact characteristics on the total construction duration and the quite accident rate, and then proposed the real construction schedule risks of reinforced concrete construction and the construction risk management method based on the previous studies, many times of expert interviews and brainstorming.

A Study on the Evaluation on the Logistics Performance of Incheon Port (인천항만의 물류수준 평가 및 개선방안 도출에 관한 연구)

  • Yeo, Gi-Tae
    • Journal of Navigation and Port Research
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    • v.32 no.3
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    • pp.179-184
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    • 2008
  • The aim of this paper is to establish the evaluation system of port logistics of Incheon using the QFD(Quality Function Deployment) model. The research methodology is consisted of four phases. The first step is to investigate the important factors consisting the port logistics of Incheon and then calculate the weighting of factors by Analytic Hierarchy Process (AHP). The second step is to draw out the degree of inter-relation among factors by Fuzzy Subordination Relations (FSR). At the third step, the established system through the QFD method using results of the first and second steps will be used to evaluate and diagnosis the level of port logistics of Incheon. Finally, the sensitivity analysis will be performed and the degree of improving port logistics will be presented according to the rising the relevant factors.

A Case Study on the VE/LCC for selection on Improvement of Soft Soil Ground (연약지반처리공법 선정을 위한 VE/LCC 사례 분석)

  • Kim, Yong-Deuk;Lee, Young-Dae;Acharya, Nirmal Kumar
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.271-273
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    • 2006
  • Because effect of value elevation is great as it is fast that construction VE is enforcement, VE at the design phase is more and more important more than construction process phase. But, is exerting negative impact for construction process phase by various problem that happen at design phase, and is causing discord to between project partners. Therefore, quality security in design phase is important first of all. Hereupon, this study emphasized that need VE at the design phase of extension plan forward more and more because achieved process that derive conceptional estimation by quantitative value calculating value index (V) through provision of design function point (F) and LCC expense (C) by comparison method of construction and chooses optimum method of construction through VE/LCC analysis example in improvement of soft soil ground method choice process of design phase.

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Performance Criteria to Assess the Remodeling Feasibility of Office Buildings (업무용 건축물 리모델링 사업성 평가 성능기준)

  • Yang, Keek-Young;Yoon, Yer-Wan;Jeong, Dong-Whan
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.2
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    • pp.142-151
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    • 2012
  • Despite the changes to demands and perceptions according to building deterioration, most of the previous studies on remodeling have focused on apartment buildings, which are residential buildings. Few studies have been conducted on buildings for general commercial use, or office buildings. Accordingly, this study set out to prepare a set of performance criteria to assess the remodeling feasibility of office buildings. For that purpose, 23 assessment items were devised, their importance was tested, 13 were extracted, and a set of scoring criteria for each item was prepared. Case analysis was conducted to check the reliability of the assessment items and scoring criteria. Through this analysis, it was found that the criteria were reliable.