• 제목/요약/키워드: Measures of Effectiveness

Search Result 1,033, Processing Time 0.023 seconds

Content Analysis of Mitigation Measures in Environmental Impact Statement (환경영향평가서 저감방안의 실효성에 대한 연구: 내용분석을 중심으로)

  • Yi, Young Kyoung;Yi, Pyong In
    • Journal of Environmental Impact Assessment
    • /
    • v.6 no.2
    • /
    • pp.165-180
    • /
    • 1997
  • Mitigation measures in EIS are the important factors in the effectiveness of EIS. This paper analyzed the content of mitigation measures described in the 30 EISs selected, using 7 analysis items in order to discover the degree of effectiveness of mitigation measures. 30 EISs used in this study were selected through variance maximization strategy, and the 7 analysis items were; 1) thoroughness of mitigation content, 2) quantification of mitigation content, 3) explicit description of mitigation effect, 4) likelihood of mitigation effect, 5) impacted area of mitigation effect, 6) time frame of mitigation effect, and 7) environmental impact of mitigation measures. The results showed that the effectiveness of mitigation measures in the analyzed EISs was relatively low both in the appropriateness and in the specificity. It was suggested that in order to improve the appropriateness of EIS as a decision making tool, the effect of mitigation measures, as well as the mitigation measures themselves, should be studied and described more thoroughly and specifically.

  • PDF

Comparative Study of Two Measures of Traffic Flow Effectiveness at Roundabouts and Signalized Intersections (회전교차로와 신호교차로의 설치기준 지표 비교에 관한 연구)

  • Kim, Ju Hyun;Shin, Eon Kyo;Kwon, Min Young
    • International Journal of Highway Engineering
    • /
    • v.18 no.3
    • /
    • pp.95-107
    • /
    • 2016
  • PURPOSES : This study compared two measures of traffic flow effectiveness on roads with roundabouts and signalized intersections and determined the more appropriate measure. METHODS : In addition to average delay time, the conventionally used measure, average travel time was introduced to measure traffic flow effectiveness because it is able to be obtained through field survey and reflect different travel distances and speed limits of roundabouts and signalized intersections. Using the two measures, roundabouts and signalized intersections were compared through simulations in terms of traffic flow effectiveness. RESULTS : For one-way single-lane roads, the two measures indicated consistent results that roundabouts were more effective than were signalized intersections when the traffic volume was less than 300 vphpl but vice versa when it exceeded 450 vphpl; however, the measures yielded inconsistent results when the volume was 350~400 vphpl. For one-way double-lane roads, the two measures indicated consistent results that roundabouts were more effective than were signalized intersections when the volume was less than 200 vphpl but vice versa when it exceeded 400 vphpl; however, the measures yielded inconsistent results when the volume was 250~350 vphpl. The results obtained using the two measures differed substantially for double-lane roads because behaviors such as weaving and lane changing at roundabouts are more common in double-lane roads than in single-lane roads. CONCLUSIONS : The average delay time would be lower on roads with roundabouts, but average travel time would be lower on roads with signalized intersections. Thus, evaluating the relative effectiveness of roads with roundabouts and signalized intersections by using average delay time alone would be inappropriate, whereas using average travel time as the evaluation index would yield fairer results.

The Effectiveness of Capital Controls and Macroprudential Measures

  • JUNYONG LEE;KYOUNGHUN LEE;FREDERICK DONGCHUHL OH
    • KDI Journal of Economic Policy
    • /
    • v.45 no.4
    • /
    • pp.1-22
    • /
    • 2023
  • We review the literature on the effectiveness of capital controls and macroprudential measures. First, we explain the purposes and examples of capital controls and macroprudential policies. We then analyze various theoretical models and empirical findings from prior studies that investigate the effectiveness of each instrument. Moreover, we review several studies that directly compare the two instruments and discuss whether policymakers should implement capital controls or macroprudential measures to overcome financial crises. Finally, based on a discussion of the findings of previous studies, we suggest several possible avenues for future research.

A Study on the Contents of Low Birthrate Measures by the Government and Their Effectiveness (저출산 문제에 대한 대책 연구)

  • Choi, Nam-Sook
    • Journal of Family Resource Management and Policy Review
    • /
    • v.11 no.1
    • /
    • pp.53-63
    • /
    • 2007
  • This study analyzes the contents of low birthrate measures by the government and their effectiveness. The discussion on the measures being promoted by the government is conducted by considering the analysis on the cause of low birthrates, introduction of overseas policies and government policy propositions, etc. The evaluation on effectiveness is conducted by considering the recognition of the policies by women who are the subject of childbirth and preceding studies. Low birth rates are not the problem of an individual anymore, but a task that the whole of society has to resolve. The comprehensive measures should be made including the elements that influence birth rate such as reducing the cost of raising a child, creating a favorable environment in society and worksite, and improving the nurturing environment, etc.

  • PDF

The Functional Relationship of C2 System Enhancement and Combat Effectiveness Using Schutzer's C2 Theory and Measures of Effectiveness (Schutzer의 C2 효과측정 모델을 이용한 지휘통제체계 강화와 전투효과의 함수적 상관관계)

  • Lee, Jae-Yeong;Shin, Chul
    • Journal of Korean Institute of Industrial Engineers
    • /
    • v.30 no.1
    • /
    • pp.65-75
    • /
    • 2004
  • The enhancement of C2(Command and Control) system will increase effectiveness of individual force power in combat engagement. Especially, available time of a given engaging force and information accuracy are the most influencing factors to increment of combat effectiveness after enhancement of C2 system. In this paper, by using Schutzer's C2 Theory and Measures of Effectiveness, we developed several analytical functions representing the relationships between C2 system enhancement and two most critical variables, available time and information accuracy. As a result of functional analysis, we showed C2 system enhancement and combat effectiveness have positive and non-linear relationship. The higher level of C2 system be required, the better combat effectiveness of force power can be obtained. Additionally, we proposed a proposition that the combat effectiveness of C2 system is more sensitive to available time than to information accuracy, which might be very important issue for further research in this field.

Aggregation of Measures of Effectiveness with Constant Sum Scaling Method and Multiple Regression

  • Kim, Hyung-Bae
    • Journal of the military operations research society of Korea
    • /
    • v.5 no.2
    • /
    • pp.27-38
    • /
    • 1979
  • This method explores a method of aggregating the measures of effectiveness of a weapon system from its characteristics. With this method, the constant sum method and multiple regression are used to develop a functional relationship between system effectiveness and system characteristics. As an example, a study of a tank weapon system was${\cdot}$conducted with data from the U.S. Army Armor School. It was concluded that the aggregation method is feasible, and that for the tank system studied, the reciprocals of system characteristics give a good estimating equation for measuring tank system effectiveness.

  • PDF

A Study of MOE Establishment for Improving the Credibility of UGV Effectiveness Analysis (무인지상로봇 효과분석의 신뢰성 향상을 위한 효과척도 설정방안 연구)

  • Lee, Jaeyeong;Pyun, Jaijeong;Kim, Chongman
    • Journal of Applied Reliability
    • /
    • v.14 no.3
    • /
    • pp.197-202
    • /
    • 2014
  • In the 21st century, the roles of UGV in the ground battle draw its attention and many research about how to use it is going on globally, but not many study is doing about how to measure its combat effectiveness in the battle. Basically, the effectiveness of UGV is different from its mission profile. Hence, we proposed Measures Of Effectiveness which can measure the UGV effectiveness based on five different missions such as mine detection, nbc detection, reconnaissance, rescue, and fire mission. We expect that these Measures Of Effectiveness proposed are able to contribute to increase the credibility of the study results for UGV effectiveness. We also hope that this paper can stimulate to expand the research scope and related field about UGV effectiveness in the future.

International community's efforts to mitigate sea turtle bycatch and status of implementing relevant measures by Korean tuna longline fishery

  • Mi Kyung Lee;Youjung Kwon;Jung-hyun Lim;Youngsin Ha;Doo Nam Kim
    • Fisheries and Aquatic Sciences
    • /
    • v.25 no.12
    • /
    • pp.589-600
    • /
    • 2022
  • Longline fishery targeting tunas and tuna-like species is known to produce a significant amount of catch not only for the target species, but also for ecologically related species like sharks, marine turtles, sea birds and marine mammals. Recognizing this seriousness, tuna related regional fisheries management organizations (t-RFMOs) have established conservation and management measures (CMMs) to reduce bycatch and/or interaction with ecosystem vulnerable species including sea turtles and are obliged to implement bycatch mitigation measures and guidelines on safe release to their member countries. Along with development and strengthening of those measures, various case studies have been conducting to verify the effectiveness of bycatch mitigation for ecologically related species. This study examines the background and progress on developing CMMs of t-RFMOs and regulation programs of the United States related to sea turtles, which have recently become one of the main issues, and reviews case studies on sea turtle bycatch mitigation measures to find out the effectiveness of reducing bycatch rate and impacts to the fisheries. In order to respond the consultation process on certification determination with the United States, it was confirmed the current status of implementation on related measures conducted by Korean tuna longline fishery based on scientific observer data and survey for captains. Even though all Korean tuna longline fleets belong to the deep-set longline fishery (100-300m), which is not subject to the obligation of those mitigation measures, they are voluntarily implementing both measures, use of circle hook and whole finfish bait, regardless of which RFMO's Convention area they operate. And the national regulatory and management programs for sea turtle bycatch prevention adopted by Republic of Korea seems to be comparable in effectiveness to that of the United Stated. However, Korea needs to take preemptive measures in establishing sustainable fisheries, including the protection of the marine ecosystem and environment, as stronger requests are anticipated to be made by the international community on this matter.

Development and Implementation of Chain Metrics for Obtaining Lean Overall Equipment Effectiveness Using Availability Measures (시간가동률 척도에 의한 Lean OEE의 연계지표 개발 및 적용)

  • Choi, Sung-Woon
    • Journal of the Korea Safety Management & Science
    • /
    • v.14 no.2
    • /
    • pp.147-158
    • /
    • 2012
  • This paper aims to develop a new chain metrics for obtaining lean Overall Equipment Effectiveness(OEE) and present implementation strategy which considers the properties for Total Productive Maintenance(TPM) to reduce machine losses, Performance Analysis and Control(PAC) to reduce labor losses, Lean Production System(LPS) to reduce floor wastes, and Theory of Constraints(TOC) to minimize the problem of Capacity Constrained Resource(CCR). The study reviews the related literatures and reformulates the structure of machine losses, labor losses and field wastes. The research also develops the integrated productivity metrics according to time, units, reliability and maintainability. It is found that the study develops the actual productivity measure in terms of efficiency, effectiveness and standard productivity. In addition to that, it outlines and develops by using the integrated LPS and TPM, lean OEE measures such as Time Based Productivity(TBP), Unit Based Productivity(UBP), and Reliability & Maintainability Based Availability(RMBA). Implication examples are proposed to make it easier and available for practioners to understand the implementation strategies about TPM OEE, lean OEE and TOC OEE. Futhermore related to other studies, the research contributes to create a new chain productivity measures to clear the interrelationship concepts of productivity, efficiency and effectiveness. Moreover the paper develops the enhanced OEE measures by integration of TPM, PAC, LPS and TOC with the perspective of schedule, throughput, reliability, maintainability and availability.

A Study on the Analysis of Combat Effectiveness of the Army C2A System (육군 방공자동화체계 전투효과 분석에 관한 연구)

  • Choi Woo-Chan;Lee Jea-Young
    • Journal of the military operations research society of Korea
    • /
    • v.30 no.2
    • /
    • pp.63-80
    • /
    • 2004
  • This paper develops a methodology which can be used to quantify the combat effectiveness of the army C2A system by modifying C2 theory and using Air Defense Engagement Simulation. In this paper, by using Schutzer's C2 theory and Measures of Effectiveness, we modified the MOE formula he designed. Because the combat effectiveness by enhancement of C2(Command and Control) system will increase combat power of individual asset independently. In addition, we developed simulation analysis of air defense scenario by using Air Defense Engagement Simulation. The results show that modified the MOE formula is proper as compared with Air Defense Engagement Simulation method. The combat effectiveness can be obtained as a result of improved probability of detection and information accuracy through real-time information sharing and coordination by C2A system.