• Title/Summary/Keyword: Selection Conflicts

Search Result 47, Processing Time 0.027 seconds

Assessment of Port Development Priority with Conflicts among Decision Makers -From the Perspective of Environment-friendly Port Development- (의사결정자의 대립하 항만개발 우선순위 평가 -환경친화적 항만개발의 관점에서-)

  • Jang, Woon-Jae
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.17 no.1
    • /
    • pp.53-60
    • /
    • 2011
  • In this study, the priority was assessed and the compensation relationships were analyzed with regard to the issue of port development with conflicts among decision makers. First, the assessment factors were selected by the relevant literatures on port development, and fuzzy structure modeling was used to select assessment factors via structuralization analysis. Second, the local residents, port users, and local government were chosen as the main port-development related entities, and the analytic hierarchy process was used to calculate the total assessment value. Third, the justice based on majority power rule method was used as an assessment method that would minimize the amount of complaints according to the total assessment results and the alternative selection when a partnership was formed among the assessment entities. Moreover, the compensation issue according to the alternative selection was quantified, and the compensation relationships were analyzed. As a result, it was found that port development in Busan must be the top priority in terms of port development in South Korea, that awareness of environmental issues must be promoted among the port users, and that the local governments must promote environmental incentive policies for Environment-friendly port development.

A Cross-layer Link Adaptive HD Video Transmission Scheme in WiMedia D-MAC based UWB Systems

  • Joo, Yang-Ick
    • Journal of Korea Multimedia Society
    • /
    • v.15 no.12
    • /
    • pp.1464-1474
    • /
    • 2012
  • In this paper, we propose a QoS (Quality of Service)-aware and cooperative resource reservation scheme using cross-layer link adaptation for wireless high definition video transmission through UWB (Ultra Wide Band) network with D-MAC (Distributed Medium Access Control). A wireless high definition video transmission system usually requires stable high throughput even without line-of-sight, e.g., a destination device in another room separated by a wall. Since the WiMedia D-MAC supporting DRP (Distributed Reservation Protocol) scheme causes lots of DRP resource reservation conflicts due to failure of beacon detection in wireless channel environment, overall performances of the WiMedia D-MAC can be deteriorated. And the current WiMedia MAC standard has not considered QoS provisioning even though QoS parameters such as a range of service rates are provided to each traffic stream. Therefore, we propose Relay DRP protocol with QoS-based relay node selection criterion, which makes a relay path to avoid DRP resource reservation conflicts and guarantee QoS more stably through cross-layer link adaptation of cooperative relay transmission scheme and is compliant with the current WiMedia D-MAC protocol. Simulation results demonstrate performance improvements of the proposed method for throughput and QoS provisioning.

Analysis of Causes of Conflict in Construction Projects (건설공사에서의 갈등원인 연구)

  • Oh, Guk-Yeol;Lee, Young-Dai;Kim, Chang-Soo
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • 2007.11a
    • /
    • pp.473-478
    • /
    • 2007
  • The construction industry is huge-there are lots of project organizations and many different people who work on them. Conflict will occur in any long - term relationship and it happens in personal, professional, family, and social relationships. Disputes between parties to construction projects are of great concern to the industry. The study of construction industry disputes, and the causes of those disputes, is essential. The purpose of this study is to identify the root causes of conflicts in construction industry. A questionnaire field survey was conducted to investigate the root causes of construction conflicts. The professionals working for owner, contractor and consultants were targeted for the collection of data. Descriptive analysis such as mean score and standard deviation as well as factor analysis was employed to find underlying factors related to conflicts in construction field. Student's t-test and ANOVA test tools were used to compare the perceptions of various categories of population and project. Factor analysis was used to group the numbers of conflict causes. This study reveals four root causes of construction conflict. They are: (i) weak project leadership (ii) weak contractor selection (iii) weak project management, and (iv) project participants' attitude.

  • PDF

A Study on the Land Suitability Analysis Based on Site Selection Variables using Macro Language (매크로 언어를 이용한 입지인자 변수조정에 따른 토지적합성 분석에 관한 연구)

  • Yi, Gi-Chul
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.6 no.1
    • /
    • pp.59-77
    • /
    • 2003
  • This study is to validate the use of macro language for the land suitability analysis aiming to help to resolve land use conflicts. The silver-town suitability analysis is conducted on the Geejang Gun, Busan Metropolitan city. Such digital maps as terrain, road, facility, and water body were created for various cartographic models. A cartographic model identified the best suitable areas for silver-town development based on the such site selection variables as a distance to facility and road, slope and aspect of terrain, land use etc. Then, the other cartographic model identified the most favorable site among the candidate sites based on the comparison of the aspect of proximity, usage and environmental quality. Macro language was used for these modeling process and was used for the manipulation of all these spatial variables used in the models to resolve land use conflicts relating to the decision making process of the final site selection. This study will improve the effectiveness and rationality of the traditional site suitability analysis.

  • PDF

The Systematization of Waste Landfill Site Selection Process utilizing GIS (GIS를 활용한 쓰레기 매립지 입지 선정과정의 체계화 연구)

  • Han, Ji Youn
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.22 no.3
    • /
    • pp.21-30
    • /
    • 2014
  • Waste landfill site which is the facility usually rejected by communities is generally perceived as one of the serious social problems. It causes serious conflicts between interested parties from the beginning of the site selection process and produces various difficulties throughout the installation process. This study suggests the systematization and standardization of the landfill site selection process to reduce those problems and to objectify the process. The study process and results are as follows. First, the landfill site selection process was divided into 4 general phases rather than more specific fragmented phases and the requirements for each phase were suggested accordingly. This can make the process clearly organized and bring the standardization of the process by increasing the applicability of each phase for various situations. Second, the utilization of GIS(Geographic Information System) and PAPRIKA (Potentially All Pairwise RanKings of all possible Alternatives) among the various MCDA(Multi-Criteria Decision Analysis) methods was suggested as the objective and scientific method. Third, the hypothetical case study on the landfill site selection process of Cheongju city was conducted based on the information above and the results show the practicability and objectivity of the newly defined landfill site selection process in this study.

Data model design and Feature Selection of Framework Data in Facility Area (시설물분야 기본지리정보 범위선정 및 데이터모델 설계)

  • 최동주;심상구;이현직
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
    • /
    • 2004.04a
    • /
    • pp.395-400
    • /
    • 2004
  • This study consists of three steps of data modeling procedures. The first step is to identify possible items for the data model based on literature review and expert interviews. The second step is to design delineate possible sub-themes, feature classes, feature types, attributes, attribute domains, and their relationships. These are presented in various UML class diagrams, and each feature type is clearly defined and modeled. The data model also shows geometry objects and their topological relationships in UML diagrams. Finally, a standardized data model has been provided to avoid possible conflicts in the field of geographic and Facility Area, and thus this study and the data model will eventually assist in alleviating efforts to build standardized geographic information databases for Facility Area.

  • PDF

An Integrated Approach of Process Plan Selection and Scheduling (공정계획과 일정계획의 통합적 접근)

  • Lee, Kyung Huy;Kim, Byoung Kug
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.19 no.39
    • /
    • pp.1-8
    • /
    • 1996
  • 본 연구에서는 공정계획과 일정계획을 순차적으로 수행하는 기존의 방법과는 달리, 공정계획의 선정과 일정계획의 동시적 접근을 통하여 생산시스템의 효율을 향상시키기 위한 통합방법론을 제시하고자 한다. 공정계획과 일정계획기의 순차적 접근방법에서는 공정계획과 일정계획이 각각 지역적 판단근거(local criteria)에 의해 순차적으로 선정되어 생산 시스템의 전역적 판단근거(global criteria)와 상충(conflicts)되는 경우가 자주 발생하여 시스템의 폭주(congestion)나 새 계획 등의 원인이 되고 있다. 이와 같은 문제점들을 극복하기 위해 본 연구에서는 통합적 접근을 통해 전역적 판단근거에 의한 공정계획과 일정계획의 동시접근방법을 제시하고 한다.

  • PDF

Building Smarter City through Big Data - Best Practices in Seoul Metropolitan Gov.

  • Kim, Ki-Byoung
    • International conference on construction engineering and project management
    • /
    • 2015.10a
    • /
    • pp.19-20
    • /
    • 2015
  • Since 2013, Seoul Metropolitan Government (SMG) has introduced big data initiatively in administration and put into practices in transportation, safety, welfare in order to overcome limited resources and conflicting interests. For establishing a new midnight bus service, SMG prepared optimized midnight bus routes by analyzing big data from mobile phone Call Data Record (CDR) through collaboration with a telecommunication company. Despite of limited budget and resources, newly identified routes can cover over 42% of the citizen with 9 routes and less than 1% of buses compare with day time operation. In addition to solve transportation problem, SMG utilizes big data to resolve location selection problem for choosing new facility locations such as life double cropping centers and senior citizen leisure centers. As results, SMG demonstrates big data as a good tool to make policies and to build smarter city by overcome space-time limitation of resources, mediation of conflicts, and maximizes benefit of the citizen.

  • PDF

An Analysis Procedure for Evaluating Pedestrian Scramble Construction (대각선 횡단보도 설치 타당성 검토를 위한 효과분석 과정 수립)

  • Han, Yeo-Hui;Kim, Yeong-Chan;Yang, Chung-Heon
    • Journal of Korean Society of Transportation
    • /
    • v.29 no.4
    • /
    • pp.73-83
    • /
    • 2011
  • Installation of pedestrian scramble is recently increasing due to pedestrian-oriented transportation policies issued in local governments. Pedestrian scramble is able to emphasize safety issues by reducing conflicts between pedestrians and vehicles when an exclusive pedestrian phase is employed. In spite of its positive property, pedestrian scramble has several negative points: an increase of a cycle length, a decrease of green time ratio, and an increase of total delay. This study delivers the impacts of pedestrian scrambles in terms of pedestrian convenience and traffic mobility. Authors analyzed the changes of traffic delays by comparing the installation and no installation of pedestrian scramble at an intersection by varying several variables: signal timings, traffic volumes, the number of lanes, and the number of pedestrian conflicts. The paper presents an analysis procedure as a guideline that assists practitioners in selection of appropriate intersections at where pedestrian scrambles are implemented.

Development of Gift Recommendation App according to the Individual Preference fused with e-Commerce (전자상거래와 융합한 개인의 취향에 따른 선물 추천 앱 개발)

  • Cho, Kwangmoon
    • Journal of Digital Convergence
    • /
    • v.13 no.8
    • /
    • pp.261-265
    • /
    • 2015
  • When choosing a gift for the other person what does that person like? It falls into a happy worry. Choosing the right gift for someone else associated with me is not easy in the personalized world gradually. In this paper a smart phone app is developed for reducing conflicts and saving time to choose gifts. It may help improve a person's satisfaction. It can reduce the worry and time required for buying a gift. It may also be used to make future interpersonal relationships and vitalize the relationships. For the gift recommendation in accordance with the preferences of the person through the process in accordance with the classification of each category can recommend an appropriate gift. The appropriation of the gift is updated to reflect the continuing satisfaction by recommendation status decided by the pre-survey. Any gift is recommended using the formula calculating the priority to recommend reflect a variety of weights. In addition, it is possible to increase the utilization of the app via the fusion between the e-commerce system.