• Title/Summary/Keyword: urban hierarchy

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A Study on Establishing Urban Spatial Structure through Central Hierarchy Analysis: Focus on Daejeon (중심지 위계 분석을 통한 대전시 도시공간구조 설정에 관한 연구)

  • RYU, KYUNG-SOO;PARK, SOUNG-EUN
    • Journal of the Korean Regional Science Association
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    • v.40 no.2
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    • pp.57-73
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    • 2024
  • The purpose of this study is to establish the central hierarchy and urban spatial structure of Daejeon in 2040 using differentiated analysis indicators. In order to establish a central hierarchy in the future urban space of Daejeon City, three indicators were derived: population density, use of buildings (commercial, office, residential, etc.) and traffic volume data(KTDB). The results of analyzing the center hierarchy using indicators are as follows. First, the primary centers responsible for urban (core) functions are set in three areas, including Dunsan downtown, the original downtown (Daejeon Station area, designated as a special urban convergence zone), and Doan New Town, and the secondary centers corresponding to sub-city centers (regional bases). was set at 9, 10 tertiary centers corresponding to regional centers (living area centers), and a center hierarchy was established with 5 new specialized bases. Second, new secondary and tertiary centers emerged that were different from the center hierarchy in the 2030 Daejeon Urban Basic Plan. The three indicators used in this study yielded meaningful results in establishing urban spatial structure and central hierarchy that can secure urban competitiveness.

Up and Down Flows of Migration in National-Space Hierarchy Over Time (국토공간계층에서 상방 및 하방 이주 흐름 변화 분석)

  • Han, Yicheol
    • Journal of Korean Society of Rural Planning
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    • v.22 no.1
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    • pp.49-56
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    • 2016
  • Throughout the economic development era of Korea, migration occurred within a spatial hierarchy, with upward flows from rural areas to urban. The concept of step migration is a typical theory to explain these upward migration flows. Recent migration data and trends, however, indicate that migration-pattern regime shows strongly opposite-direction flows, with many of the major migration flowing downward on this national-spatial hierarchy, away from urban areas. In this study, we examine the most recent structure of migration flows up and down within the national-spatial hierarchy. We define seven tiers to tabulate origin-destination migration flows from population density of local administrative districts for the period 2001-2014, and then analyze the migration patterns between the tiers over time. The results show differentiated patterns of migration within the national-spatial hierarchy over time including specific states of migrants' life cycles.

Determining Key Ecological Indicators for Urban Land Consolidation

  • Kuo-Liang Lin
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.513-524
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    • 2009
  • Urban land consolidation, which is to reform land parcels to remove fragmentation and produce ideal blocks, is an effective means for urban renewal. Successful urban land consolidation brings out great benefits to the city officials as well as general public, such as improved city image, increased land value, and more effective land use. However, urban land consolidation can be detrimental to environment, especially in the ecological aspects, while the execution of land consolidation has been focused solely on development for the sake of human benefits. To remove negative effects of urban land consolidation to the ecological system, this paper is intended to establish a set of criteria for evaluating ecological impacts of an urban land consolidation plan. Firstly, key ecological indicators are identified using a special group decision-making process called "habitual domain analysis" and then individual weighting of each indicator is recorded by analytical hierarchy process. An urban ecological evaluation model with 4 levels and 23 indicators is thus developed.

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The Improvement Method for Air Pollution Level through Optimal Allocation of Urban Facilities( I ) (도시시설의 도로기능별 적정입지분석을 통한 대기오염 저감방안에 관한 연구( I ))

  • Kwon, Woo-Taeg;Kim, Hyung-Chul;Kim, Ki-Bum
    • Journal of environmental and Sanitary engineering
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    • v.18 no.3 s.49
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    • pp.11-20
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    • 2003
  • There are two ways of reducing air pollution. One is the approach of the pollutant source control and the other one is the traffic demand decreasing approach. This study is focusing on the approach of land use planning and optimal location of urban facilities because those are the basic cause to generate transportation demands. So, the purpose of this study would be to analyze the changes of NOx and CO distribution on environmental air by functional hierarchy of urban roads and to make evaluation model of 'Transportation-Land Use -Air Pollution'. It will contribute to improve the air pollution level at same actual traffic generation according to different location.

Examining Importance of Urban Rotorcraft Operations Using Analytic Hierarchy Process

  • Hye-Jin, Hong;Yong-og, Kim;Sungkwan, Ku
    • International Journal of Advanced Culture Technology
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    • v.10 no.4
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    • pp.487-498
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    • 2022
  • This study aims to determine the importance of each factor considered when operating a rotorcraft in a city. After identifying factors that could affect urban air mobility, we reviewed the influencing factors by applying an analytic hierarchy process (AHP). Level 1 classifies the essential factors of the urban operation of rotorcraft in nominal and off-nominal situations. The factors corresponding to the characteristics of each were composed of lower levels, such as Levels 2 and 3. Using this, the importance of influencing factors was analyzed and the most important factors were determined. The most influential factors of the urban operation of rotorcraft included engine failure, fire situations, and vehicle safety. Accordingly, an environment that can guarantee safe operation by considering the most influential factors in advance in an actual operation stage must be constructed.

A Study on Local Residents' Evaluation of the Planned Indicator Value for Urban Regeneration - Targeting Local Residents in Mokpo - (도시재생사업 계획지표에 관한 지역주민의 가치평가 연구 - 목포시 지역 주민을 대상으로 -)

  • Shin, EunJu;Yoo, ChangGeun;Cho, SeongJin
    • Journal of the Korean housing association
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    • v.26 no.6
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    • pp.71-81
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    • 2015
  • In terms of urban regeneration of the present that focuses on a city's original history, culture and environment, it is now being understood as a concept of how a city by itself gets vitalized through local participation and communities. That is what indicates how a main agent of urban regeneration is changing to relevant local residents from public organizations and due to that reason, establishment of a differentiated urban regeneration policy that would reflect opinions of the locals is demanded. In the light of that, this study aimed to offer an urban regeneration project planning indicators targeting an old downtown area of Mokpo city which has been selected as an urban regeneration district. An AHP (Analytic Hierarchy Process) survey on the locals had revealed priorities of the indicators which helped the study to present indicators to be practically used for the urban regeneration project on the old downtown area in Mokpo.

Application of Analytic hierarchy Process to decide the priority of undeveloped neighborhood park (도시공원 조성의 우선순위 결정에 있어서 계층분석과정 기법의 적용)

  • 박문호
    • Journal of the Korean Institute of Landscape Architecture
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    • v.24 no.1
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    • pp.42-54
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    • 1996
  • Many of urban parks which have been designated for urban planning regulation are not well developed because the priority of investment is inferior to that of other public facilities. Park development is an urgent urban policy and it is hard to decide priority among parks. Therefore, it is necessary to evaluate the priority of park development. Thus the Analytic Hierarchy Process has been introduced because it is suitable for achieving objectivity by collecting the professional opinions. The goals of park development are evaluated by AHP method and the priorities among goals are conservation of natural environment, satisfying the residents' residents' needs, population density, regional pollution, land acquisition cost, ratio of greeneries and facilities within park areas. Priority of park development is decided by the standardization of each individual inventory data and considering of the professional opinions. Among the multi-attribute judgement methods, AHP method may be the most widely used. Despite the critical evaluations of the AHP, such as limitation of the nine-point scale and the rank reversal problem, application of AHP to decide the priority of park development is suitable for actual circumstances.

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Design Elements for Community facility in Housing Complex (집합주거 단지내의 커뮤니티 형성에 관한 이론적 고찰)

  • 김학균;김정곤
    • Journal of the Korean housing association
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    • v.12 no.2
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    • pp.123-132
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    • 2001
  • The purpose of this study is to analyze the elements of community Design for urban housing complex, and to suggest design criteria for urban housing. It is recognized that the community facilities has to fit within the urban fabric. However with a correct focus, the community activities can acquire its own identity around which its internal social and economic activities can flourish. A community needs a focus and a well ordered hierarchy of all amenities in a balanced and cohesive environment. This has been achieved within the framework of following parameters as follows: Focus and Identity of community, Cohesion of areas and activities, Accessibility of general facilities, Community and institutional provisions, Safety and Hierarchy of commercial activities.

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Park Disposition Problems and Alternatives on the Basis of the Neighborhood Units Theory in Japan Metro-Cities -New Approach to the Disposition Theory of Urban Public Parks- (일본지방도시를 사례로 본 근린제 공원배치의 문제 및 그 개선방안 -도시공원 배치이론에 대한 새로운 접근-)

  • 박구원
    • Journal of the Korean Institute of Landscape Architecture
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    • v.32 no.2
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    • pp.36-54
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    • 2004
  • The disposition of public parks pursue proper distribution and hierarchy formations on the basis of the neighborhood units theory. However, problems like price of land has brought about a large gap between theories and real conditions. This paper examines the problems of the practical disposition and disposition standards of public parks to solve these contradictions with reference to examples in Japan metro-cities. Study results are as follows; 1) The existing disposition theories are based on the district-boundary of men’s acting and settling down. Therefore, the disposition standards of large-scale parks or special parks beyond the humane scale have not been explained exactly. 2) As city sizes have expanded, these large-scale parks have developed greatly, however, they are located out of urban areas on the ground of nature’s geographical features. As a result, many small parks developed in urban areas. This extreme phenomenon of location would break up proper distribution and hierarchy. 3) Large parks over 4 ha not only take an important role in forming greenbelts but their location is also mainly based on their natural geographical features so that they are absorbed into the network -structure of greenbelts. 4) It is suggested that in planning parks, location and size of large parks over 4 ha should be selected and decided in the relation not with parks but with greenbelts. Parks of 4 ha or below are properly disposed. Also, these parks take a great role in forming the district boundary for settling down. Accordingly, proper distribution and hierarchy formation needs to be based on established neighborhood as they were previously.

Developing an Evaluation System for Certifying the Robot-Friendliness of Buildings through Focus Group Interviews and the Analytic Hierarchy Process (로봇 친화형 건축물 인증 지표 개발 : 초점집단면접(FGI)과 분석적 계층화 과정(AHP)의 활용)

  • Lee, Kwanyong;Gu, Hanmin;Lee, Yoonseo;Jung, Minseung;Yoon, Dongkeun;Kim, Kabsung
    • Journal of Cadastre & Land InformatiX
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    • v.52 no.2
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    • pp.17-34
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    • 2022
  • With rapid advancements taking place in the Fourth Industrial Revolution, human-robot interactions have been garnering increasing attention. Robots are being actively adopted in building systems and facilities. In this study, we developed robot-friendly building certification indicators. Because these indicators were being developed for the first time, we focused only on commercial buildings. We conducted exploratory research using methodologies such as focus group interviews and the analytic hierarchy process. First, the concept of the robot-friendly building was defined through focus group interviews, and the requirements were categorized by the appropriateness of operating facilities and systems and the appropriateness of architectural and robot operating systems and networks. Next, the relative importance of the evaluation items (23 items in total) was calculated using the analytic hierarchy process. Their average score of the marks was 4.4, and the minimum and maximum were 2.0 and 11.3, respectively. This study is significant because we collected the basic data necessary to develop a one-of-its-kind evaluation system for certifying the robot-friendliness of buildings using scientific methods.