The forklift carry cargo and move to various places. When a forklift moves to various places, a forklift accident occurs due to a number of factors,such as speed, safe distance. Forklift accidents occur at the logistic site and there are many studies on the causes of accident such as jamming, falling, collisions, etc. However, safety operation for accident prevention is necessary before operating a forklift. Pre-accident safety precautions may prevent accidents. In this study, precautionary factors for safe operation were analyzed to prevent forklift safety accidents through the AHP technique. As a result of the study showed that safety management was the priority in the terminal group and the logistics warehouse group.

Human stampedes were a major hazard that could occur during mass gatherings, but they have received limited attention in korea. However, after the 10.29 Itaewon disaster, this atmosphere has turned around. The cause of such an accident and how to prevent it should be considered. The main aim of this study is to identify the reason why did the accident happen at that time, the root cause, and the triggering cause with Delphi-AHP survey method. In addition, various preventive measures were investigated by experts to prevent accidents similar to 10.29 Itaewon disaster. Problems and solutions were presented by collecting expert opinions on the causes and preventive measures of the 10.29 Itaewon disaster. However, the opinion of the experienced peoples who experienced the risk at the Itaewon was not included, so further investigation is considered necessary.

Engineering design primarily focuses on product improvement through enhancing existing functionalities, integrating features, or adding new capabilities. In other words, it can be said that more design(adaptive design) changes to existing products based on benchmarking with competing products, differentiation strategies, changes in customer needs, etc. are actually performed rather than developing new products that did not exist before. Especially in the case of custom production, such as ships or buildings, a significant portion of actual design work involves modifying and adjusting past performance data according to the current customer's requirements. Therefore, design methods should be developed in a way that effectively supports these processes. Therefore, in this study, as QFD (Quality Function Deployment) ‘analysis of existing products’ and ‘creation of new alternatives’ is supported in Marine Concept Design with AHP (Analytic Hierarchy Process) techniques such as ‘Value Evaluation in Analysis Work’ and ‘Design Alternative Evaluation’, as a result, basic research was conducted on whether it could be used as a tool to effectively support the flow of the design process.

생태계서비스란 자연생태계가 인간에게 주는 혜택을 통틀어 일컫는 용어이다. 생태계서비스를 정량화하기 위하여 다양한 모형이 개발되어 적용되고 있다. InVEST는 대표적인 생태계서비스 모형이며 그 중 서식지질 평가가 폭넓게 사용되고 있다. 우리나라에서는 국립공원을 대상으로 서식지질 평가가 실시되고 있다. 서식지질 평가를 위해서는 서식 지질 초기값으로 위협인자에 대한 민감도 평가가 이뤄져야 하는데, 이는 국가 및 적용분야에 따라 판이하다. 그래서 그동안 진행된 국립공원 서식지질 평가를 바탕으로 전문가 설문(AHP)을 실시하여 서식지질 초기값인 민감도의 기준을 조정하였다. AHP실시 결과 자연초지, 경지정리가 안된 밭 등 10개 항목이 상향조정되었으며, 하천, 호소 등 8개 항목이 하향조정되어 총 18개 항목이 조정되었다. 조정된 민감도 결과를 바탕으로 도시형인 북한산국립공원과 계룡산국립공 원, 사적형인 경주국립공원, 해상해안형인 한려해상국립공원 그리고 산악형인 지리산국립공원과 설악산국립공원을 대상지 서식지질 분석을 실시하였다. 분석결과 국립공원내 분포하는 시가화건조지역과 수역에 대한 부분이 서식지질 평가에 반영되었음을 알 수 있었다. 향후 이 기준을 이용하여 자연공원의 서식지질 평가가 가능할 것이다.

In this study, the AHP (analytic hierarchy process) technique was used to analyze the risk of expected risk factors and fishing possibilities during gillnet fishing within the floating offshore wind farms (floating OWF). For this purpose, the risks that may occur during gillnet fishing within the floating offshore wind farms were defined as collisions, entanglements, and snags. In addition, the risk factors that cause these risks were classified into three upper risk factors and ten sub risk factors, and the three alternatives to gillnet fishing available within the floating OWF were classified and a hierarchy was established. Lastly, a survey was conducted targeting fisheries and marine experts and the response results were analyzed. As a result of the analysis, among the top risk factors, the risk was the greatest when laying fishing gear. The risk of the sub factors for each upper risk was found to be the highest at the berthing (mooring), the final hauling of fishing net, and the laying of the bottom layer net. Based on the alternatives, the average of the integrated risk rankings showed that allowing full navigation/fisheries had the highest risk. As a result of the final ranking analysis of the integrated risk, the overall ranking of allowing navigation/fisheries in areas where bottom layer nets were laid was ranked the first when moving vessels within the floating OWF was analyzed as the lowest integrated risk ranking of the 30th at the ban on navigation/fisheries. Through this, navigation was analyzed to be possible while it was analyzed that the possibility of gillnet fishing within the floating OWF was not high.

The air transport industry is experiencing unprecedented fluctuations in aviation demand through the Covid-19 pandemic, and is more focused than ever on maintaining and generating business profitability. During the pandemic, demand for air cargo has soared, and the conversion business from passenger aircrafts to freighters(P2F) is drawing attention as a new business in the aviation maintenance industry. This study derives important factors to be considered in order to successfully carry out the P2F project through a wide range of cases and related literature, and analyzes the relative importance of each factor using the analytic hierarchy process. Through a survey of 33 aviation maintenance experts with more than 20 years of field experience, the importance of main factors and their sub factors was determined and implications were drawn. As a primary result, in order to succeed in the P2F project, the main factors were identified in the order of skill, finance, and location. The most important sub factors for each main factors were identified in order of securing airframe modification skill, securing infrastructure construction cost, and creating P2F business complex and district. The quantified success factors suggested the critical direction for the successful development of Korea's P2F business, and presented viable and specific business strategies and implementation plans for each factors.

PURPOSES : The purpose of this study was to investigate directions for future smart city transportation policies and service development by evaluating road service satisfaction levels and predicting future service demand. METHODS : A nationwide survey was conducted in Korea to develop a transportation service evaluation system based on the functions and objects of transportation. The satisfaction level of road service was evaluated using an analytic hierarchy process (AHP), promising service sectors were identified using the revised importance-performance analysis (IPA) technique, and detailed service demands by sector were suggested. RESULTS : The most valuable service value felt by the people was "safety" (weight 0.4), and the overall satisfaction level was 68.9 points, slightly exceeding "normal." As a result of analyzing the promising service sectors by dividing them into urban and rural areas, "handicapped, elderly, and pedestrians" were important in both areas, and "road facility maintenance" was classified as an additional promising sector for rural areas. CONCLUSIONS : People demand that future smart city transportation policies and services should be "people" and "safety" centered. In addition, it is necessary to pay attention not only to the development of new services but also to the improvement of problems with existing services and policies.

진해만 해역은 태풍 내습 시에 우리나라 남동권 해역의 주요 태풍 피항지로 이용되고 있다. 하지만 태풍 내습 시 진해만 내 선박이 폭주하고 주묘가 다수 발생하는 등 해양사고 발생 가능성이 존재한다. 본 논문은 태풍 내습 시 진해만 피항지에 대해 안전 확보 및 효율적으로 관리할 수 있는 방안을 해당 해역의 VTS 관제사로부터 도출하고, 이를 선박 운항자에게 AHP 기법을 통하여 상대적 중요 도를 도출하여 관리자와 이용자 의견이 반영된 안전대책을 제시하였다. AHP 설문조사를 위한 안전 대책 요소를 선정하기 위하여 진해만 내 태풍 내습 시 VTS 관제사의 대응 조치 평가 내용에 대해 분석하였다. 선정된 안전대책 요소를 기반으로 설문조사를 실시한 결과, 선정 된 요소에 대해 선박 운항자는 선박의 안전을 효율적 관리보다 약 2배 이상 중요하게 생각하며, 종합적으로 피항선 관리, 정박구역 관리, 피항정보 관리, 규정 및 지침 마련, 시스템 장비 개선, 교육 및 홍보·알림 활동 순으로 중요하게 고려함을 파악하였다. 본 논문에서 식별된 방안 및 상대적 중요도를 통해서 진해만 태풍 피항지를 안전하고 효율적으로 관리하는 기반이 될 수 있을 것으로 사료된다.

Recently, the Defense Advanced Research Projects Agency(DARPA) in the United States is studying a new concept of war called Mosaic Warfare, and MUM-T(Manned-Unmanned Teaming) through the division of missions between expensive manned and inexpensive unmanned aircraft is at the center. This study began with the aim of deriving the priority of autonomous functions according to the role of unmanned aerial vehicles in the present and present collaboration that is emerging along with the concept of mosaic warfare. The autonomous function of unmanned aerial vehicles between the presence and absence collaboration may vary in priority depending on the tactical operation of unmanned aerial vehicles, such as air-to-air, air-to-ground, and surveillance and reconnaissance. In this paper, ACE (Air Combat Evaluation), Skyborg, and Longshot, which are recently studied by DARPA, derive the priority of autonomous functions according to air-to-air collaboration, and use AHP analysis. The results of this study are meaningful in that it is possible to recognize the priorities of autonomous functions necessary for unmanned aircraft in order to develop unmanned aerial vehicles according to the priority of autonomous functions and to construct a roadmap for technology implementation. Furthermore, it is believed that the mass production and utilization of unmanned air vehicles will increase if one unmanned air vehicle platform with only essential functions necessary for air-to-air, air-to-air, and surveillance is developed and autonomous functions are expanded in the form of modules according to the tactical operation concept.

The railroad facilities are intended for long-term operation as the initial acquisition costs necessary for infrastructure construction are high. Therefore, regular maintenance of railroad facilities is essential, and furthermore, system reliability through systematic performance evaluation is required. In this study, the signal control system of railroad electrical equipment was selected as the subject of research and the performance evaluation target facility selection study was conducted using AHP. The results of the study can contribute to the reliability of the signal control system as well as to the reliability of the railroad system, which is a higher system.

Since sewer rehabilitation program requires long construction period and enormous capital investment, determination of rehabilitation priorities is important with systematic planning considering appropriate evaluation parameters. In this research, we applied PROMETHEE(Preference Ranking Organization METHod for Evaluations) known as very objective and scientific multi-criteria decision-making analysis, using the weights determined by AHP(Analytic Hierarchy Process) for the selected sewer evaluation items to calculate the rehabilitation priorities for each sewer sub-catchment in basin Gusan 1 of Seoul. Preference functions and preference thresholds were estimated for each criterion of ratio of lack of hydraulic capacity of sewers, defect ratio, ratio of sewers with velocity less than its minimum criteria, and density of sewers in the sub-catchment. As a result, it was found that region d had the first priority among four sub-catchments. For each and every sewer located in region d, we could also rank sewers to be rehabilitated urgently.

This study attempts to improve the understanding of the rapidly growing online video platform market such as Youtube and OTT, and to investigate the attributes and relative importance of them. For this purpose, the factors that influence the choice to use were derived through literature studies and the Focus Group Interview (FGI), and the priority of the factors was calculated through the analytic hierarchy process (AHP). The upper layer of the AHP structure was ‘Relationship’, ‘Entertainment’, ‘Informativity’, and ‘Convenience’, and the lower layer was structured into 13 elements. The importance priority analysis among the factors that influence the choice to use was done by teenagers, 20s, and 30s and the results are summarized as follows : First, Users consider the ‘Just for fun’ and ‘Satisfaction of interests’ as the most important factors, followed by ‘Easy accessibility to use’, ‘Vicarious satisfaction’, ‘Usefulness of Information’, and ‘Up-to-dateness of information’. Second, the ranking of the upper layer was in the order of ‘Entertainment’-‘Informativity’-‘Convenience’-‘Relationship’.As a result of AHP,‘Entertainment’ was 3.6 times more important than ‘Relationship’. In the comparison by age group, only teenagers regarded that ‘Convenience’ is more important than ‘Informativity’. According to the characteristics of the age group, the lower layer of teenagers consider ‘Convenient function’ to be important and ranked ‘Usefulness of information’ in 8th. While ‘Vicarious satisfaction’ ranked 4th out of 13 factors in the entire age group, those in their 20s and 30s ranked 8th, showing a difference. In the case of 20s, ‘Reasonable price’ was ranked 4th and the ‘Diversity of Information’ was ranked 5th, Otherwise 30s consider ‘Trustworthiness of Information’ to the third. Third, unlike ‘Convenience’ which was the lower-rank in the upper layer AHP analysis, ‘Easy accessibility to use’, the lower-layer of convenience, ranked third overall in the importance analysis among the 13 lower-layer factors, and showed a similar patterns in the age groups results. In the conclusion, this study demonstrates that ‘Convenience’ and ‘Vicarious satisfaction’ factors, which were not relatively well addressed in the previous studies, are the key factors to be considered in. By presenting the results of the importance analysis on each of the selected attributes, This study has a practical implication that Industries such as on-line video service platform provider can use the importance priority in establishing the directions of future strategy.

우리나라는 국가 차원에서 엔지니어를 자격을 인증하고 기술등급으로 평가․활용하는 국가기술자격제도의 운용을 통하여 기술 인적자원을 육성하고 관리하고 있다. 동 제도는 광범위하게 사용되고 국가경쟁력에 미치는 영향력이 크나 국제기준과 괴리되어 기득권자의 지대(rent)가 되어 있고 엔지니어 역량을 종합적으로 반영하는데 미흡하다는 평가다. 기업 차원에서도 프로젝트 등에 배정할 엔지니어를 선정하기 위해 사전심사 등을 거치고 있으나 자체적으로는 평가 기준과 방법에 있어서 객관성을 확보하기가 어렵다. 이에 본 연구는 AHP 방법론을 활용한 역량모델링을 통해 국가기술자격제도의 적합성을 검증하고 기술 인적자원의 평가 및 선정에 쉽게 활용할 수 있는 정량적 역량모델을 제공하고자 하였다. 본 연구에서는 조사결과의 객관성을 확보하고 다양한 이해관계자 집단의 인식을 검토하고자 다수 전문 엔지니어를 대상으로 설문조사를 시행하고 통합집단과 세분된 집단으로 다면 연구를 진행하였다. 또한, AHP 기법을 활용하여 국내사업과 해외사업에 서 필요한 역량의 중요도를 차이를 파악하고자 국내모델 및 글로벌모델로 구분하여 접근하였다. AHP 가중치 도출을 위해 두 차례에 걸쳐 총 937명의 엔지니어로부터 설문지를 회수하여 이중 일관성비율(CR)이 0.1 이하인 554명(국내모델 321명, 글로벌모델 233명)의 유효 설문지를 분석에 활용하였으며, AHP분석 결과 도출된 가중치를 기반으로 복수의 역량모델을 제시하고 59,721명의 엔지니어 정보를 활용하여 모델별 효과를 추정하였다. 연구결과, 응답자는 정부의 현행 역량평가요소인 자격, 학력, 경력 외에 교육훈련과 글로벌역량이 포함될 필요가 있는 것으로 인식하고 있었다. AHP 국내모델에서 엔지니어 역량요소의 상대적 중요도는 경력(0.383), 자격(0.253), 학력(0.195), 교육훈련(0.169) 순으로 나타났으며, 글로벌모델에서의 상대적 중요도는 경력(0.308), 글로벌역량(0.237), 교육훈련(0.175), 국내기술자격(0.147), 학력(0.134) 순으로 나타 났다. 글로벌역량을 구성하는 하위지표에 대한 가중치는 해외근무, 어학능력, 해외자격의 순으로 나타났다. 이 같은 AHP 분석결과는 엔지니어들이 인식하는 기술등급 평가요소와 산정 방식이 기술자격 중심의 현행 정부의 모델과는 괴리가 있으며, 국내시장과 해외시장에서의 필요한 엔지니어의 역량에 차이가 있음을 시사해주고 있다. 기업규모 및 직무특성에 따른 평가요소별 중요도의 차이는 나타나지 않았으나, 기술자격 및 조직 유형에 따라 집단 간 역량평가 요소의 중요도가 일부 항목에서 다름이 확인되어, 역량모델 개발 및 활용 시 직무특성보다는 자격 특성 및 조직 유형을 반영할 필요가 있음을 의미한다. 역량모델링을 통한 시뮬레이션 결과, 현행 정부의 기술등급 산정 방법에서는 역량과는 무관하게 대량의 초급기술자가 양산됐지만, AHP 가중치에 기반을 둔 역량모델은 산업에서 요구하는 엔지니어의 기술등급 분포와 적합하였다. 본 연구는 AHP 방법론을 바탕으로 제안된 역량모델의 적합성을 실증적으로 검증하고, 시사성 있는 과제인 국가기술자격제도의 개선 방향을 도출함으로써 우리나라의 기술경쟁력 및 기술 인적자원관리 정책에 유용한 정책 대안을 제시한다는 점에서 의미가 있다. 또한, 본 연구에서 제시된 AHP 가중치 및 역량모델은 시장의 인식을 반영하여 정량화한 것으로 기업 차원에서도 사업 대상 및 조직 유형에 맞게 다소의 수정을 거쳐 범용적으로 활용할 수 있다. 특히 프로젝트에 배정될 기술 인적자원 선발 등의 잠재적 후보자를 선정하는 예비단계에서 객관화된 점수로 쉽게 평가할 수 있어 실무적 의미가 크다.

The purpose of this study is to find food safety approach in the Eco-label Chain of Custody(CoC) which is only focused to traceability. Because, consumers want to be assured the certified seafood comes from sustainable fishery as well as hygienic. In order to this approach, we used Analytic Hierarchy Process(AHP) method as belows. We first understood the CoC criteria for using pair-wise comparison and analyzed and selected each Eco-label certifications and standards. Second, we carried out a survey to the targeted standard Marine Stewardship Council(MSC) CoC auditors all over the world and analyzed the priorities of food safety approach to 4 principles and 12 criteria belong the MSC CoC Standard. As the results, we found out that‘Management System’has the highest priority in the principles and ‘.Documentation’and‘Keeping Record’are the most important criteria for this approach. In addition, ‘.Training’and‘Identification’are also higher priority of criteria. So, we suggested food safety approach method for improvement of these criteria in conclusion based on discussion with specialist in this field.