• 제목/요약/키워드: Urban changes

검색결과 1,625건 처리시간 0.03초

One-Way Error Component Regression Model을 활용한 도시지역 수재해 취약성 변화의 실증연구 (A Study on the Changes of Flood Vulnerability in Urban Area Using One-Way Error Component Regression Model)

  • 최충익
    • 환경정책연구
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    • 제3권2호
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    • pp.89-112
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    • 2004
  • This Study aims to demonstrate how much flood vulnerability in urban area changed for the past 32 years by using the panel model. At the same time, this study strives to determine the primary factors and to construct an effective counter-plan by means of empirical research. After selecting research hypotheses based on considerations of issues concerning causes for urban flooding, their relevance is put to the test by conducting empirical research in individual case locations. This research verifies the four research hypotheses by using one-way error component regression model. In conclusion, this research has shown that urban land use and local characteristics act as significant flood determinants, with forests acting to reduce flood dangers. Moreover, constructing embankments can no longer represent a reliable flood control policy. The changes in future flood control policies need to incorporate local characteristics and to minimize natural destruction, so that humans and nature can coexist through environmentally friendly flood management policies.

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Urban Dynamics in Northeast Asia and the Future of Korean Cities

  • Kim, Won-Bae
    • 지역연구
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    • 제15권2호
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    • pp.75-102
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    • 1999
  • This paper attempts at analyzing the urban dynamics in Northeast Asia by looking at major forces transforming the regional structure of Northeast Asia. Trade and foreign direct invest-ment are identified as two principal channels of increasing economic interdependence in the region. In addition, macro development strategy and infrastructure policy are another set of determining factors for changes in the regional structure of Northeast Asia. To examine the role of cities and inter-city linkages, the paper first tries to identify major urban centers and urban hierarchy in Northeast Asia. Secondly, it examines the prospects for inter-city network formation. Against these anticipated changes in the regional structure and inter-city networks in Northeast Asia, the paper discusses about the future of Korea as well as the role of Koran cities in the regional economy of Northeast Asia.

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Urban Facilities Monitoring Using Airship Videographic System

  • Yoo, Hwan-Hee;Kang, In-Joon;Kim, Seong-Sam;Park, Kyung-Yeol
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2004년도 Korea-Russia Joint Conference on Geometics
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    • pp.28-34
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    • 2004
  • Fast urbanization and industrialization have resulted in rapid changes in the urban environment. For effective monitoring and management of these changes, a new surveying methodology that is more inexpensive and timely than the conventional remote sensing system is required. This paper proposes an unmanned airship videographic system capable of acquiring stable video. In addition, it presents approaches to constructing a prototype facilities management system based on VideoGIS, which links GIS functions and video data to provide actual spatio-temporal information.

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김해시 도시경관에 대한 시민의 인식변화 연구 (A Study on the Changes in Citizens' Perceptions of Urban Landscape of Gimhae)

  • 이장민;고인석
    • 한국산학기술학회논문지
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    • 제16권2호
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    • pp.1483-1489
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    • 2015
  • 본 연구는 김해시 도시경관에 대한 시민들의 인식과 2003년과 2011년 사이에 그 것의 변화가 있었는지를 알아보는데 목적이 있다. 이를 위하여 김해 시민들을 대상으로 설문조사를 실시하였으며, 통계적 유의성을 검토하기 위하여 카이제곱검정과 빈도분석을 실시하였다. 연구결과 도시경관의 현황과 자원에 대한 인식에는 큰 변화는 없었으나 도시 형상 변화와 생활환경에 대한 관심의 증대 등으로 약간의 변화가 있었으며, 도시경관의 관리방향에 대한 인식에서도 큰 변화는 나타나지 않았으나 환경보호에 관심이 높아진 것으로 나타났다. 시민들의 경관에 관한 관심도가 높게 나타났으나 8년 사이에 큰 변화는 없었으며, 본인의 경제적인 희생에는 부정적인 것으로 조사되었다. 그러므로 시민들의 경제적 손실이 발생할 수 있는 규제보다는 지원과 유도 중심의 도시경관정책이 더욱 효과적일 것으로 예상할 수 있었다.

도시성장에 따른 공간구조의 변화에 관한 연구 -의정부시의 사례를 중심으로 (A Study on Changes and Differences in Spatial Configuration of the Urban Sub-Area Development - In the Case of Uijeongbu City)

  • 박종현;권영;이종렬
    • 한국디지털건축인테리어학회논문집
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    • 제4권2호
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    • pp.35-43
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    • 2004
  • Transformations of the urban spatial structure, from sub-area redevelopment to newtown development, results great influences upon existing urban condition and spatial configuration. The purpose of the study is to analyse the effect of the urban spatial configuration of Uijongbu city where experienced changes after newly development of city center and new residential area. The west part of the city where is limited in growth by military bases, ego U.S Army basecamp, were planned and established as the other axis of the city center since mid 1980's. After that new residential area which is located in far east of the city were also developed. Space syntax as a methodology has been adopted to conduct quantitative analysis which is able to interpret differences between sub-areas ; old city center, new city center, new residential area. The results of the analysis are follows ; 1) existing structure of the urban fabric, especially old city center, is sustained and intensified, 2) new city center which is west part of the city has failed to achieve organic spatial connection adjacent to old city center, 3) there is less spatial depecdency relationship between city center and new residential area where is identified as another small self-support city within the city.

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대규모 택지개발에 의한 도시확장이 도시 공간구조변화에 미치는 영향분석 - 대전광역시를 대상으로 - (A Study on the Influences of Urban Area Expansion by Developing a Large Scale Residential District on Changes of Urban Spatial Structure - In the Daejeon Metropolitan City -)

  • 정영환;강인호
    • 한국주거학회논문집
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    • 제17권5호
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    • pp.137-146
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    • 2006
  • This study was aimed to analyze the influences of urban expansion by developing a new large scale residential district on changes of whole urban spatial structure. For the analysis, time serial analysis was conducted on the Daejeon Metropolitan City by using the space syntax method. The results of the study are as follows ; First, an expansion of urban area led to lower both of the local and global integration levels, second, the spatial occupation ratio of upper 10% in the whole integration showed that old city center was separated, and moved to the Dunsan District, third, the results also showed that an integration of the old city center region maintained a high level in spite of a movement of city center and its local integration still had highest level so that the old city center will take one of the two city center roles together with Dunsan District.

도시철도 추가 건설에 따른 서울시 역내 지역별 접근성 변화 (Changes in Accessibility of Seoul Metropolitan Area by the Construction of Additional Urban Railway)

  • 이상현;김옥연
    • 대한건축학회논문집:계획계
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    • 제35권12호
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    • pp.105-114
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    • 2019
  • The goal of this study is to quantitatively evaluate the effects of the additional construction of urban railroads. To this end, 1) establish accessibility as a measure of quantitative evaluation of construction effects; 2) select the 'Integration' of Space Syntax as a quantifiable indicator of accessibility; 3) represent the Seoul railroads as a network; 4) calculate the 'Integration' form the network before and after the additional construction of the urban railroads. By calculating the change of the 'Integration' of the individual nodes and the change of the sum of the 'Integration' of given zones, the change in accessibility of a particular node and the change in accessibility of a particular region were calculated. After analyzing the change in accessibility in nodes and areas as well, it was confirmed that the additional construction of urban railroads was improving accessibility as a whole of Seoul. It was also identified that there was a degree of difference in the extent of the accessibility change for the different areas. It is particularly noteworthy that changes occur in the accessibility ranking. While certain regions were improving relative rankings, others fell in rank. With this finding, it could be argued that active consideration of the areas in which the relative decline occurs is needed when the planned urban railroad is being built.

KOMPSAT과 Landsat 8을 이용한 도시확장에 따른 열환경 분석: 세종특별자치시를 중심으로 (Analysis of Thermal Environment by Urban Expansion using KOMPSAT and Landsat 8: Sejong City)

  • 유철희;박선영;김예지;조동진
    • 대한원격탐사학회지
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    • 제35권6_4호
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    • pp.1403-1415
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    • 2019
  • 도시인구 증가와 이에 따른 급격한 도시화는 도시 내 여러 열환경 문제를 수반한다. 이를 효과적으로 대응하기 위해 hot Spot 분석과 같은 도심 열환경 모니터링이 필요시 된다. 본 연구는 우리나라 세종특별자치시의 14개의 동과 주변 행정구역을 연구지역으로 선정하여 2013년부터 2018년 여름철의 도시 확장에 따른 지표면 온도 변화 특성을 분석하였다. Landsat 8 지표면온도와 KOMPSAT2/3 기반 NDVI(Normalized Difference Vegetation Index)및 NDBI(Normalized Difference Built-up Index)를 이용하여 연구 지역의 지표면 온도 분포를 모의하고, 도심지 확장에 따른 지표면 온도 변화 양상을 구축된 NDVI와 NDBI를 이용해 논의했다. 특히, 연구지역 안에서의 도심지 확장이 뚜렷한 지역을 연구 대상으로 선정하여 고해상도의 KOMPSAT영상으로 지역 내 hot spot의 변화 원인을 분석하였다. 연구결과, 연구지역 내에서 도시화가 진행된 지역에 hot spot이 나타나는 것을 확인하였으며 일반적으로 NDVI가 낮거나 NDBI가 높을수록 hot spot의 영향이 뚜렷하고 온도가 높게 나타나는 것으로 확인되었다. 지표면온도와 위성기반 산출물을 이용해 도시화가 지속적으로 진행된 지역과 급격하게 나타난 지역이 구분되었으며 토지피복에 따른 상이한 특성도 파악할 수 있었다. 도시화에 따른 지표면 온도 변화가 뚜렷한 지역에 본 연구와 같이 고해상도의 KOMPSAT 영상을 통한 분석이 수반되면 향후 도시계획 및 정책 활용에 효과적으로 도움을 줄 수 있을 것으로 기대된다.

Application of Change Detection Techniques using KOMPSAT-1 EOC Images

  • Lee, Kwang-Jae;Kim, Youn-Soo
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.222-227
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    • 2002
  • This research will examine into the capabilities of KOMPSAI-1 EOC image application in the field of urban environment and at the same time, with that as its foundation, come to understand the urban changes of the study areas. This research is constructed in three stages: Firstly, for application of change detection techniques, which utilizes multi-temporal remotely sensed data, the data normalization process is carried out. Secondly, change detection method is applied fur the systematic monitoring of land use changes, which utilizes multi-temporal EOC images. Lastly, by using the results of the application of land use changes, the existing land use map is updated. Consequently, the land-use change patterns are monitored, which utilize multi-temporal panchromatic EOC image data; and application potentials of ancillary data fur updating existing data can be presented. In this research, with the use of the land use change, monitoring of urban growth has been carried out, and the potential for the application of KOMPSAT-1 EOC images and the scope of application was examined. Henceforth, the future expansion of the scope of application of KOMPSAT-1 EOC image is anticipated.

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대규모 도시 재개발에 따른 기상환경변화 (The Changes of Meteorological Environment by Urban Development)

  • 김근회;김연희;구해정;김규랑;정현숙
    • 대기
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    • 제24권1호
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    • pp.69-76
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    • 2014
  • Urbanization affects the local thermal environment due to the large scale land use changes. To investigate the weather environment change of large scale urban redevelopment, 9 surface temperature and humidity observations were accomplished at Eunpyeong new town area. The observation period is from March 2007 to February 2010. In the center of development area, the air temperature has increased and relative humidity has decreased, by the changes of the land cover and building construction. In the area where the green zone is maintained, air temperature and relative humidity were not changed significantly. The air temperature and relative humidity for the other development observation stations is decreased and increased, respectively. The relative temperature difference between study area and a neighboring rural location was increased during observation periods. The difference is the highest during winter. The urban-rural minimum temperature difference was increased at development area, which means that urbanization affects increasing of minimum temperature in study area.