• 제목/요약/키워드: Environment Improvement Factor

검색결과 561건 처리시간 0.022초

고속철도 운전직무의 휴먼에러 감축방안을 위한 실증적 연구 (An Empirical Study on method to Reduce of Human Error of High-Speed Train Drivers)

  • 주창훈;김태길;임정운;강경식
    • 대한안전경영과학회지
    • /
    • 제16권2호
    • /
    • pp.1-9
    • /
    • 2014
  • This study tried to propose plan to prevent human error of railroad driver among human error of railroad worker which takes great share in railroad accident. For this, in order to maintain correlation between the accident actually occurred after the opening of high-speed railroad and experience of accident that did not happened, survey on respondent was analyzed by conducting survey on KTX captain who is working in driving work of high-speed railroad, and instruction management team manager who manages KTX captain and captain. This thesis classified the factors by human factor, job factor, environment factor, organization factor, and established human error management model by comparing and analyzing how each factors have spatial interrelations with a railroad accident. The purpose of this study is to contribute to make safe railroad, and reliable railroad by preventing human error accident by minimizing human error of high-speed railroad drivers, and improving driving workers to cope accurately and fast with irregularities through various institutional improvement, improvement of driving facilities, improvement of operating room environment, and improvement of education system.

DARS에 의한 CAPSS 배출자료의 불확도 평가 (Uncertainty Assessment for CAPSS Emission Inventory by DARS)

  • 김정;장영기
    • 한국대기환경학회지
    • /
    • 제30권1호
    • /
    • pp.26-36
    • /
    • 2014
  • The uncertainty assessment is important to improve the reliability of emission inventory data. The DARS (Data Attribute Rating System) have recommended as the uncertainty assessment technic of emission inventory by U.S. EPA (Environmental Protection Agency) EIIP (Emission Inventory Improvement Program). The DARS score is based on the perceived quality of the emission factor and activity data. Scores are assigned to four attributes; measurement/method, source specificity, spatial congruity and temporal congruity. The resulting emission factor and activity rate scores are combined to arrive at an overall confidence rating for the inventory. So DARS is believed to be a useful tool and may provide more information about inventories than the usual qualitative grading procedures (e.g. A through E). In this study, the uncertainty assessment for 2009 CAPSS (Clean Air Policy Support System) emission inventory is conducted by DARS. According to the result of this uncertainty assessment, the uncertainty for fugitive dust emission data is higher than other sources, the uncertainty of emission factor for surface coating is the highest value, and the uncertainty of activity data for motor cycle is the highest value. Also it is analysed that the improvement of uncertainty for activity data is as much important as the improvement for emission factor to upgrade the reliability of CAPSS emission inventory.

커뮤니티를 고려한 주거환경개선요소 설정 및 중요도 분석 (Importance Analysis and Establishment of Community-Based Residential Environment Improvement Items)

  • 김현진;구자훈;원제무
    • 한국주거학회논문집
    • /
    • 제20권6호
    • /
    • pp.127-134
    • /
    • 2009
  • This study initially analyzes the meaning of Community-Based Residential Environment Improvement. A residential environment improvement factor was determined through an analysis of the function, components, Planning techniques of the community, the evaluation criteria of the residential environment, and through relative literature documenting plans for the adjustment of urban and housing environments. In terms of the methodological approach, decisions were made based on the results of an expert focus-group-interview, a goodness-of-fit test, and by using the analytic network decision-making method from which the correlation among items can be considered. Results of this analysis show that the, order of importance of factors for a community-based residential environment is as follows: interactional character, cognitive character, and locational character. Furthermore, the most important aspect for each of these factors are the neighbor-hood relationship in terms of the interactional character, common consciousness for the cognitive character and place for locational character. The results of this study can be used by linking them with questionnaire items for basic resident research when a residential environment improvement project or a plan for the adjustment of urban and housing environments is planned.

가구특성에 따른 주거이동 동기와 주거환경요소 특성에 관한 연구 - 부산시를 중심으로 - (A Study on the Motives of Mobility and profile of Housing Environment Quality according to Household Characteristics)

  • 조성희
    • 한국주거학회논문집
    • /
    • 제7권2호
    • /
    • pp.69-77
    • /
    • 1996
  • Mobility in housing is a normative way to satisfy family needs for· better· living conditions. In the context of relative decisions. mobility can be understood as forced relocation or unforced relocation In making relocation. the household chooses a particular 'environmental quality profile. Therefore. the understanding of mobility and relocation in housing is needed for· the developing and planning of housing evnironment. The major findings are s follows ;1. The motives of mobility are composed of 4 factors('material porseperity’, 'convenience· safety'. environmental improvement' and 'forced relocation'). Especially, 'material prosperity' was defined the most fundamental factor· for. 2. The components of housing environment quality were composed of 3 factors related to the scale of home environment. They were 'neighborhood character factor', 'dwelling character· factor·'. And 'location character· factor'. The factor 'neighborhood character' was defined the basic factor· to choose for the housing environmental quality profile.3. It was examined that the motives of mobility and the components of home environmental quality were significantly different by the household characteristics (income. family life cycle. and tenure type).

  • PDF

시설물 환경개선 예산편성을 위한 항목분석 - 경상남도 학교시설물 중심으로 - (Factor Analysis for Environment Improving Budget of Facilities - Focused On School Facility In Gyeongsangnamdo -)

  • 홍강민;유현주;류한국
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2015년도 춘계 학술논문 발표대회
    • /
    • pp.255-256
    • /
    • 2015
  • House supplying rate of building facilities is over 100% in 2008. In modern society, many people are thus interested in maintenance phase of building facilities by environment improvement budget because 20 years or more of building facilities are increasing rapidly. Maintenance of building facilities is depending on various factors that impact on the environment improvement budget of building facilities. However, Various methods and factors are made up complex relationships. I will analyze that environment improvement budget associated with floor, gross area, local, school type, service life and other elements.

  • PDF

금호강 수계 지류하천의 수질 특성 평가 및 수질개선 등급화 방안 (Evaluation of Water Quality Characteristics and Water Quality Improvement Grade Classification of Geumho River Tributaries)

  • 정강영;안정민;김교식;이인정;양득석
    • 한국환경과학회지
    • /
    • 제25권6호
    • /
    • pp.767-787
    • /
    • 2016
  • In this study, we analyzed on-site monitoring data for 15 tributaries in Geumho watersheds for 3 years (2011-2013) in order to sort out priorities on water quality characteristics and improvement. As a result of estimating contribution to contamination of the tributary rivers, Dalseocheon showed the highest load densities, despite the smallest watershed area, with 22.7% $BOD_5$, 30.7% $COD_{Mn}$, 31.3% TOC and 47.6% TP. After conducting PCA (principal component analysis) and FA (factor analysis) to analyze water quality characteristics of the tributary rivers, the first factor was classified as $COD_{Mn}$, TOC, EC, TP and $BOD_5$, the second factor as pH, Chl-a and DO, the third factor as water temperature and TN, and the fourth factor as SS and surface flow. In addition, arithmetical sum of each factor's scores based on grading criteria revealed that Dalseocheon and Namcheon were classified into Group A for their highest scores - 96 and 93, respectively -, and selected as rivers that require water environmental management measures the most. Also, water environmental contamination inspection showed that Palgeocheon had the most number of aquatic factors to be controlled: $BOD_5$, $COD_{Mn}$, SS, TOC, T-P, Chl-a, etc.

기업의 품질개선활동에 따른 성과에 영향을 주는 요인에 관한 연구 -싱글 PPM을 중심으로- (A study on the influence factor for Quality Improvement Activity Performance of Enterprise)

  • 김용범;장광순
    • 대한안전경영과학회지
    • /
    • 제13권3호
    • /
    • pp.145-152
    • /
    • 2011
  • Company's survival in a changing business environment is depend on what kind of strategy will be used for facing this business competition society. For this, many companies continued to apply management techniques to improve the activities in this process has been running productivity-oriented activities to switch away from the quality has become a central activity. In other words, quality improvement activities (quality improvement activity) for the continuing businesses is an important strategic element. In this study, single-PPM (Single-PPM) the company's leading quality improvement activities will be used and browse to accommodate factors that affect a successful quality improvement activities, absolute requirement for companies to learn about the conditions to improve the quality of corporate tries to emphasize the importance of the activity.

Revisiting Prediction Tools for Daylight Adequacy and Its Potential Improvement

  • Kim, Dong Hyun
    • KIEAE Journal
    • /
    • 제17권3호
    • /
    • pp.35-44
    • /
    • 2017
  • Purpose: This study questioned the efficiency of daylight factor as a daylight adequacy and investigated a method of how to complement its weakness by considering a direct sunlight component under a clear sky condition. Method: The Snowdon visitor centre cafe was chosen as a case study building and various techniques such as BRE formula, BRE sky protractor, Pilkington dot diagram and mock-upscale model under the artificial sky simulator were used to analyse and compare daylight factor values. An analysis of direct sunlight component under the clear sky condition was carried out by Climate Consultant 5.5, sun path diagram, and the artificial sky simulator. Result: The result of daylight factor analysis differed by the adopted techniques and it was also contradictory to the results on a direct sunlight penetration. The result not only showed the limitation of daylight factor as a metric but also suggested an improvement by combining it with direct sunlight analysis. The techniques used in this study had a merit of being applied in the early design stage and thus be beneficial to many design professions in order for early daylight performance analysis.

지역주민의 시각에 의한 정주환경개선과 지역활성화 - 일본 와카야마현 나카츠무라를 중심으로 - (Regional Revitalization and Settlement Improvement from the point of view of the Local Residents - A Case Study on the Nakathu-Mura of Wakayama Prefecture in Japan -)

  • 김영주;최수명;타카하시 쓰쓰시
    • 농촌계획
    • /
    • 제10권3호
    • /
    • pp.19-26
    • /
    • 2004
  • In this study, a new model for improving the settlement environment and revitalizing hilly and mountainous areas was presented. A case study was conducted in two rural villages of Nakatsu-Mura in Wakayama-Prefecture, Japan. The settlement environment was evaluated from the point of view of the local residents, and the expectation of the local residents about the regional revitalization of their village in the future was assessed. From the analysis, each factor used far the assessment displayed characteristics of the two rural villages well. The type of improvement in rural villages was classified by a combination of the degree of satisfaction over the current settlement environment and expectation about the regional revitalization of the villages in the future. A method for improving and revitalizing settlement environments was clarified.

장기공공임대주택 주민의식조사를 통한 주거환경개선방향 설정연구 (A Study on the Direction of Residential Environment Improvement through the Residents Survey in Long-term Public Rental Housing)

  • 이지은;윤영호;김유정
    • 토지주택연구
    • /
    • 제4권1호
    • /
    • pp.65-75
    • /
    • 2013
  • 노후 공공임대주택은 노후화 관리를 위해 주거환경개선을 지속적으로 시행하며 최근 3년간 시설개선사업을 통해 기본적인 노후화 관리를 수행하였다. 이에 따라 본 연구는 주거단지 노후화에 따른 주거환경요소의 개선 요구도 및 현 주거환경 만족도 조사를 통해 기 시행된 시설개선사업의 효과에 대해 알아보고 추후 시설개선사업의 계획방향을 제시하고자 하였다. 이를 위해 전국 장기공공임대주택의 거주자를 대상으로 설문조사를 하였으며 만족도 및 중요도에 대해 평균값 분석을 하고 항목간의 유형구분을 위해 요인분석을 하였다. 그 결과 주거환경개선 항목으로 도출한 공용 공간 29개 항목을 6개의 요인으로 구분하고, 세대 내부 공간 28개 항목을 4개의 요인으로 구분하여 만족도 및 중요도에 대한 평균값을 비교하였다. 결론적으로 주민의식조사 결과를 종합하여 추후 시설개선 사업을 중심으로 타 주거환경개선사업과 연계한 추진방향을 제안하였다.