• 제목/요약/키워드: Geographic accessibility

검색결과 107건 처리시간 0.026초

지리정보체계를 이용한 안산시의 오픈스페이스 분석 (An Analysis of Urban Open Space with Geographic Information Systems - A Case Study of Ansan City, Korea -)

  • 서동조;박종화
    • 대한원격탐사학회지
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    • 제6권2호
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    • pp.89-113
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    • 1990
  • The purpose of this study is to develop means to apply GIS and remote sensing technology to the analysis of Korean urban open spaces. To achieve this objective, a framework of analysis of urban open spaces was developed, and then the framework was applied for the evaluation of the potential and suitability of open spaces of Ansan City, which is a new town developed to accomodate industries relocation from Seoul, Korea, mainly due to their pollution problems. The software used in this study are IDRISI, a grid-based GIS, and KMIPS, a remote sensing analysis system. Both packages are based on IBM PC/AT computers with Microsoft DOS. Landsat MSS and TM data were used for the land use classification, land use change detection, and analysis of transformed vegetation indices. The size of the geographic data base is 110 rows and 150 columns with the spatial resolution of 100m$\times$100m. The framework of analysis includes both quanititative and qualitative analysis of open spaces. The quantitative analysis includes size and distribution of open spaces, urban develpment of open spaces, and the degree of vegree of vegetation removal of the study area. The qualitative analysis includes evaluative criteria for primary productivity of land, park use potential, major visual resources, and urban environmental control. The findings of this study can be summarized as follows. First, the size of builtup areas increased 18.73km$^2$, while the size of forest land decreased 10.86km$^2$ during last ten years. Agricultural lands maintained its size, but shifted toward outside of the city into forest. Second, the potential of open spaces for park use is limited mainly due to their lack of accessibility and connectivity among open spaces, in spite of ample acreage and good site conditions. Third, major landscape elements and historic sites should be connected to the open space system of the city by new accesses and buffers.

지역자산을 활용한 개발우선순위 분석 (Analysis of Development Priority Using Regional Assets)

  • 최민주;이상호
    • 한국콘텐츠학회논문지
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    • 제19권6호
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    • pp.359-367
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    • 2019
  • 지역 경쟁력 강화를 위한 전략으로 지역자산의 효율적 활용이 점점 더 중요해지고 있다. 지역의 정체성 및 경쟁력의 핵심은 지역자산이기 때문이다. 본 연구의 목적은 지역의 자산을 평가하여 개발우선지역을 도출하는 것이다. 본 연구에서 사용된 분석방법은 GIS 분석, Big Data Trend 분석, AHP 분석 이다. 지역자산의 잠재력을 평가하기 위해 자산의 선호도, 역사적 가치, 자원의 군집성(Cluster), 광역교통접근성, 인구밀도 등을 분석 지표로 설정하고, 각 항목의 중요도를 반영하기 위해 AHP기법을 이용하여 항목별 가중치를 적용하였다. 경상북도 영주시를 대상으로 분석한 결과 부석사, 소수서원, 희방사, 풍기온천리조트, 풍기역, 국립산림치유원, 영주동지역, 무섬마을 등 8개의 주요거점을 도출하였다.

수도권 거주가구의 주거면적 변화 결정요인: 수도권 내 주거이동 방향에 따라서 (The Determinants of Change in Residential Size of Households in the Seoul Metropolitan Area: According to the Patterns of Residential Mobility)

  • 정수영
    • 지역연구
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    • 제37권3호
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    • pp.19-36
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    • 2021
  • 우리나라의 대부분의 인구가 거주하는 수도권에서는 다양한 유형의 주거이동이 나타날 것을 예상할 수 있다. 특히 비대면 상황이 증가하는 시대에 중요한 요소로 떠오르고 있는 주거면적의 변화 역시 이동 방향에 따른 차이가 존재할 수 있고 영향요인 또한 다양하게 나타날 것이다. 따라서 이동 방향에 따른 주거면적의 상향, 하향과 영향요인의 분석은 인구 집중도가 높은 수도권 지역을 대상으로 하는 주택정책 방향성에 시사점을 제시 할 수 있을 것이다. 이에 본 연구는 수도권 내 이동방향에 따른 주거면적의 변화에 대한 영향요인을 비교 분석한다. 구체적인 연구질문은 다음과 같다. 첫째, 수도권 주거이동 방향에 따른 주거면적의 상향 및 하향에 차이가 있는가? 둘째, 수도권 주거 이동 방향에 따른 주거면적 상향 및 하향 영향요인에 차이가 있는가? 연구질문에 답하기 위해 2018년 주거실태조사를 활용하여 t-test와 이항 로지스틱 회귀분석을 활용하였다. 본 연구의 주요 분석결과는 다음과 같다. 첫째, 수도권 주거이동 방향에 따라서 주거면적의 상향 및 하향은 통계적으로 유의미한 차이가 있으며 경인지역에서 경인지역으로 이동했을 경우 주거면적의 상향을 경험한 가구가 많았다. 둘째, 주거 면적 상향 이동의 경우 이전 거주지가 서울인 경우가 많고, 하향 이동의 경우 경인지역에서 이동한 가구가 많다. 마지막으로 각 주거이동 방향별로 주거 면적 상향이동에 영향을 미치는 요인은 다르게 나타났다. 이러한 분석결과를 토대로 수도권 내 주거 면적의 상향 및 하향 이동에 대한 이론적, 정책적 함의를 제시한다.

아파트 단지의 보행효율성에 관한 연구 - 단지 내 보행로를 중심으로 - (An Study of Pedestrian Efficiency in Apartment Complexes - Focused on Pedestrian Path in Apartment Complexes -)

  • 양동우;유상균
    • 대한건축학회논문집:계획계
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    • 제34권11호
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    • pp.85-94
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    • 2018
  • This study aims to investigate how easy pedestrians get around within/through the "Apartment Complexes (AC), " a common style of high-rise multi-family housing in Korea. Over the past six decades, the AC has been the most conventional way to provide standardized housing efficiently to address the problems of the shortage of housing and the substandard housing, due to the explosion of urban population with the rapid industrialization. The AC is a huge chunk of homeogenous multi-family housing, mostly condos with decent infrastructure, including parks, pedestrian passages, schools, ect. Both in the new town development and urban renewal programs have utilized the advantages of the AC. Since the design principals of AC tend to adopt the "protective design" to prevent cars and pedestrians coming outside from passing it, it has been criticised for dissecting the continuity of socioeconomic context in neighborhoods. The neo-traditional planning urbanists, including Jane Jacobs, emphasize that smaller blocks and grid road newtworks are the key in improving social, cultural, and economic vitality of the neighborhoods, because these design concepts allow more pedestrians and different types of people to be mixed in a neighborhood. In this study, we first adopted objective measures for pedestrian accessibility and pedestrian efficiency. These measures were used to calculate the lengths of shortest paths from residential buildings to the edges of AC. We tested the difference in shortest paths between the current pedestrian networks of AC and hypothetical grid networks on the AC, and the relative difference is considered as the pedestrian efficiency, using the network analysis function of Geographic Information Systems (GIS) and Python programming. We found from the randomly selected 30 ACs that the existing non-grid road networks in ACs are worse than the hypothesized grid networks, in terms of pedestrian efficiency. In average, pedestrians in AC with the conventional road networks have to walk than 25%, 26%, and 27% longer than the networks of $125{\times}45m$, $100{\times}45m$, and $75{\times}45m$, respectively. With the t-test analysis, we found the pedestrian efficiency of AC with the conventional network is lower than grid-networks. Many new urbanists stress, easiness of walking is one of the most import elements for community building and social bonds. With the findings from the objective measures of pedestrian accessibility and efficiency, the AC would have limitations to attract people outside into the AC itself, which would increase dis-connectivity with adjacent areas.

Bigdata 분석과 인공지능 적용한 GIS 최적화 연구 (GIS Optimization for Bigdata Analysis and AI Applying)

  • 곽은영;박대우
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2022년도 춘계학술대회
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    • pp.171-173
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    • 2022
  • 4차 산업혁명 기술은 국민들의 생활을 효율적인 방향으로 발전시키고 있다. 인터넷 상에서 제공되는 GIS는 국민이 원하는 목적지에 빠르게 도달할 수 있도록 교통안내, 시간안내 등의 서비스를 제공한다. 국토지리정보원과 지방자치단체들은 생활 SOC 접근성을 조사하여 최적지점 분석에 활용하기 위한 기초 자료를 제작하고 있으며, 본 연구는 최단거리 구성을 위하여 출발점에서 도착점까지의 접근성을 분석하였다. Dijkstra알고리즘을 활용하여 도로망도와 출발지점, 도착점을 통해 최단거리를 계산하고 이를 활용하여 최적의 접근성을 계산하였다. 연구 결과 다수의 도착점에 대한 분석을 수행한 경우 약 0.1% 이상의 오류가 나타났으며, 최적지점을 위한 위치 분석을 위하여 3번 이상의 분석이 필요하였다. 다대다(M × N) 계산을 처리할 경우 더 많은 시간이 소요되었으며, 본 분석을 위해 32G이상의 메모리 사양이 요구되었다. 범용적인 최적 접근성 분석 서비스의 제공은 기업의 창업 및 생활 시설의 위치 선정에 효과적으로 이용될 수 있으며, 국민 누구나 시설 및 주거지 선정 시 서비스를 활용할 수 있다. 본 연구를 기반으로 효율적이고 편한 푸시 서비스를 국민과 정부기관에 제공한다면 국가와 사회의 발전에 이바지 될 것이다.

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공항 및 공역관리 제도 개선에 관한 연구 (A Study on the Airport and Airspace Management)

  • 김병종;양한모
    • 항공우주정책ㆍ법학회지
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    • 제12권
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    • pp.246-274
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    • 2000
  • This paper discusses the qualification criteria for international hub airport and suggests the strategies for Inchon International Airport (IIA) to be the hub airport in the East Asia. Recently, many East and Southeast Asia countries have invested on large scale international airports like Chap Lak Kok airport, Pudong airport etc.. as Korea have done on IIA. IIA to be open in 2001 will face a serious competition with these airport. Being a hub airport requires geographic proximity. sufficient volume of local traffic. uncongested infrastructure, a good accessibility to surrounding industrial centers. high quality of service to the airline. In order to promote airlines to land at IIA. Korea Government need to establish Open Sky Policy to many countries and national flag carriers of Korea need to be involved in a global alliance. Developing vicinity of IIA as free trade zone will generated more local traffic which makes IIA as more attractive candidate for airlines. The Korea airspace is one of the most restricted area in the world becuase of the national security. which limits civil aircraft maneuvers. The airspace need to be re-structured to exploit the full capacity of IIA.

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Using Omnidirectional Images for Semi-Automatically Generating IndoorGML Data

  • Claridades, Alexis Richard;Lee, Jiyeong;Blanco, Ariel
    • 한국측량학회지
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    • 제36권5호
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    • pp.319-333
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    • 2018
  • As human beings spend more time indoors, and with the growing complexity of indoor spaces, more focus is given to indoor spatial applications and services. 3D topological networks are used for various spatial applications that involve navigation indoors such as emergency evacuation, indoor positioning, and visualization. Manually generating indoor network data is impractical and prone to errors, yet current methods in automation need expensive sensors or datasets that are difficult and expensive to obtain and process. In this research, a methodology for semi-automatically generating a 3D indoor topological model based on IndoorGML (Indoor Geographic Markup Language) is proposed. The concept of Shooting Point is defined to accommodate the usage of omnidirectional images in generating IndoorGML data. Omnidirectional images were captured at selected Shooting Points in the building using a fisheye camera lens and rotator and indoor spaces are then identified using image processing implemented in Python. Relative positions of spaces obtained from CAD (Computer-Assisted Drawing) were used to generate 3D node-relation graphs representing adjacency, connectivity, and accessibility in the study area. Subspacing is performed to more accurately depict large indoor spaces and actual pedestrian movement. Since the images provide very realistic visualization, the topological relationships were used to link them to produce an indoor virtual tour.

범용 3D 그래픽 엔진의 GIS 정보 서비스를 위한 데이터 자동변환 알고리즘 개발 (Development of Data Automation Algorithm for GIS Service in Universal 3D Graphics Engine)

  • 김형훈;박현철;최형욱;강수명;정윤재
    • 한국멀티미디어학회논문지
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    • 제20권3호
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    • pp.581-592
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    • 2017
  • Geographic Information System (GIS) is a method of expressing objects in a space. Currently, many research and developments are being conducted to implement 3D GIS. In previous studies, 3D GIS applications have been developed using Unity 3D, which is a 3D engine with good development accessibility. However, it requires manual work to enter various formats of GIS data, making it difficult to immediately reflect GIS data that change frequently. To improve this problem, this study developed a method for automatically reading and outputting various GIS data from the existing Unity 3D application. The improved application could read Satellite Images, Aerial Photographs, Digital Elevation Models (DEM) and Shapefiles with no transformation through other commercial programs, and they could be implemented as 3D objects. This study automated the GIS data conversion which had been manually performed and as a result, the manpower, time, and resources required for 3D GIS implementation can be saved.

농촌어메니티 및 도시수요를 고려한 그린투어리즘 잠재력 평가기법 개발 (Development of Green-Tourism Potential Evaluation Method Considering Rural Amenity and Demand of Citizen)

  • 배승종
    • 농촌계획
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    • 제14권4호
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    • pp.109-119
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    • 2008
  • The objectives of this study are to develop a green tourism potential evaluation method with rural amenity and demand of citizen. The new index which was named GPD(green tourism potential degree) is designed to propose the green tourism potential of rural areas using spatial analysis of geographic information system and spatial interaction of gravity model. And in order to evaluate the green tourism potential with supply side and demand side, two indices were defined; One is green tourism demand degree(GDD) which is developed to quantify a demand side potential by the analysis of urban population and urbanization index, and the other is green tourism attraction degree(GAD) which is developed to quantify a supply side potential by the analysis of rural amenity values using AHP algorithm, based on opinion of related experts. The developed method was applied to a part of Kyounggi province, Seoul and Incheon. All the study area's GAD, GDD and GPD were assessed and the proposed green tourism potential evaluation method could be used in developing rural development plans and green tourism policies considering spatial interaction with citizen and green tourism resources.

GIS-CA 기법을 이용한 도시확산 지역의 공간적 모의 (Spatial Simulation of Urban Expansion Area using GIS and CA Technologies)

  • 김대식;정하우
    • 농촌계획
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    • 제10권4호
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    • pp.9-18
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    • 2004
  • The purpose or this study is to simulate spatially the urban expansion phenomena with a cellular automata (CA) technique using GIS. A study area, Suwon city, was selected for test of model verification and application with the classified land-use maps of three data years: 1986, 1996, and 2000. The urbanized potential maps were generated with seven criteria of one geographic factor (slope of land), and six accessibility factors (time distances from city, national road, Seoul, station, and built-up boundary), considering their weighting values, which were optimized by WSM (weighted scenario method for intensity order) combined a ranking method and a AHP technique. The optimized weighting values at the urban expansion between 1986 and 1996 were applied to verify the CA model for the other expansion between 1996 and 2000. The results of model application showed that urban sprawl phenomena of the urban expansion toward rural area can be simulated spatially and temporally with several boundary conditions considering various scenarios for the criteria and parameters of the model. Ultimately, this study can contribute to reference data for land-use planning of urban fringe areas.