• Title/Summary/Keyword: spatial structure

Search Result 2,968, Processing Time 0.027 seconds

Analysis of Changes in Urban Spatial Structure for Balanced Urban Development (도시균형발전을 위한 도시공간구조 변화 진단)

  • KIM, Ho-Yong
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.24 no.2
    • /
    • pp.40-51
    • /
    • 2021

  • The purpose of this study is to diagnose urban spatial structures using spatial modeling techniques for balanced urban development as part of sustainable urban growth management. Since urban spatial structure is an interaction of various activities, it is necessary to interpret the analysis results in conjunction with the analysis of changes in spatial structural elements. In this study, population and transportation were approached for research purposes. Population data were applied to the Getis-Ord Gi* method, a spatial statistical technique, to analyze the concentration-decreasing region of the population. Traffic data analyzed the trend of centrality change by applying commuting traffic O-D data to Social Network Analysis techniques. The analysis showed that urban imbalance was growing, and the centrality of transportation was changing. The results of the analysis of spatial structure elements could be interpreted by linking the results of each factor to each neighborhood unit, predicting changes in urban spatial structure and suggesting directions for sustainable urban growth management.These results could also be used as a decision-making tool for various urban growth management policies introduced to cope with rapid urban development and uncontrollable development in many cities around the world.

  • https://doi.org/10.11108/kagis.2021.24.2.040 인용 PDF KSCI

Design & Performance Evaluation of Storage and Index Structures for Spatial Network Databases (공간 네트워크 데이터베이스를 위한 저장 및 색인 구조의 설계 및 성능평가)

  • Um Jung-Ho;Chang Jae-Woo
    • The KIPS Transactions:PartD
    • /
    • v.13D no.3 s.106
    • /
    • pp.325-336
    • /
    • 2006

  • For supporting LBS service, recent studies on spatial network databases (SNDB) have been done actively. In order to gain good performance on query processing in SNDB, we, in this paper. design efficient storage and index structures for spatial network data, point of interests (POIs), and moving objects on spatial networks. First, we design a spatial network file organization for maintaining the spatial network data itself consisting of both node and edges. Secondly, we design a POI storage and index structure which is used for gaining fast accesses to POIs, like restaurant, hotel, and gas station. Thirdly, we design a signature-based storage and index structure for efficiently maintaining past, current, and expected future trajectory information of moving objects. Finally, we show that the storage and index structures designed in this paper outperform the existing storage structures for spatial networks as well as the conventional trajectory index structures for moving objects.

  • https://doi.org/10.3745/KIPSTD.2006.13D.3.325 인용 PDF KSCI

The Type of Composition and Classification of Tension Structure Systems in Architecture (건축 인장구조시스템의 분류와 구성유형)

  • Lee, Ju-Na;Park, Sun-Woo;Park, Chan-Soo
    • Journal of Korean Association for Spatial Structures
    • /
    • v.3 no.3 s.9
    • /
    • pp.111-120
    • /
    • 2003

  • Tension members is a type of effective structural member, which is often used in large span structures. The structure systems composed with tension members are combined in various way and specific formations. So, there are need to research into the formations of tension structure and the type of adaptation in tension structure architectures. The structure systems with tension members were considered as tension main system, vector system and tension supported bending system, comprehensively. And tension structures were classified into the formation of tension structure with uniaxial or multiaxial line tension member, with surface member, with hybrid member of line and surface, concerning the flow of tension force. In each the formation of tension structure, the typical adaptations to architecture were also investigated through architecture examples. The type of the formation can be used to plan an architecture with respect to the flow of tension force and structural feature.

  • PDF