• Title/Summary/Keyword: Urban Spatial Growth

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Urban sprawl and its impact on the land cover-a geospatial study

  • Jayakumar, S.;Enkhbaatar, Lkhagva;Heo, Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.16 no.4
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    • pp.73-78
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    • 2008
  • The present study was aimed to estimate the urban sprawl in a historical city of India using series of satellite data between 1968 and 2005(37 years) and GIS. The total area of the Tiruchirappalli city was 1991.96 ha during 1968 and it was expanded into 4335.98 ha(117.67%) during 2005. The average growth rate per year was 63.35 ha. This 117.67% growth was at the cost of agriculture land(97.81%) and water body(2.19%). The satellite data used in this study were found to be good source of information for this kind of analysis and further studies are need to estimate the impact of this city expansion on agriculture yield and ground water.

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A Study on Urban Design Direction for Promoting Spatial inclusion in Port Area (항만 배후지역의 공간적 포용성 증진을 위한 도시설계적 방향성 제시에 관한 연구)

  • Hwang, Sun-Ah;Kim, Jong-Gu
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2017.11a
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    • pp.61-63
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    • 2017
  • The urban space has both aspects that the happy space that guarantees opportunity and comfort is an unfortunate space where poverty, exclusion and deportation proceed simultaneously. In other words, growth and decline are simultaneous within the city, and this phenomenon is more evident in modern society, which is getting more complicated. The harbor space is also affected by the growth and decline of the port industry directly or indirectly in the port area. However, since there is no systematic guideline for development and planning of port space in Korea, the phenomenon of the decline of the rear area, which is made up as if the harbor space has been growing and declining from past to present, is getting worse.

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Thermal Infrared Remote Sensing Data Utilization for Urban Heat Island and Urban Planning Studies

  • Lee, Hye Kyung
    • Journal of KIBIM
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    • v.7 no.2
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    • pp.36-43
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    • 2017
  • Population growth and rapid urbanization has been converting large amounts of rural vegetation into urbanized areas. This human induced change has increased temperature in urban areas in comparison to adjacent rural regions. Various studies regarding to urban heat island have been conducted in different disciplines in order to analyze the environmental issue. Especially, different types of thermal infrared remote sensing data are applied to urban heat island research. This article reviews research focusing on thermal infrared remote sensing for urban heat island and urban planning studies. Seven studies of analyses for the relationships between urban heat island and other dependent indicators in urban planning discipline are reviewed. Despite of different types of thermal infrared remote sensing data, units of analysis, land use and land cover, and other dependent variable, each study results in meaningful outputs which can be implemented in urban planning strategies. As the application of thermal infrared remote sensing data is critical to measure urban heat island, it is important to understand its advantages and disadvantages for better analyses of urban heat island based on this review. Despite of its limitations - spatial resolution, overpass time, and revisiting cycle, it is meaningful to conduct future research on urban heat island with thermal infrared remote sensing data as well as its application to urban planning disciplines. Based on the results from this review, future research with remotely sensed data of urban heat island and urban planning could be modified and better results and mitigation strategies could be developed.

Examination of Potential Unplanned Land Use in Asan City with a Spatial Analysis Method (아산시 국지적 난개발 발생 가능지역 탐색 방안 실증연구)

  • Lee, Gyoungju;Im, Jun-Hong
    • Land and Housing Review
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    • v.13 no.3
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    • pp.69-81
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    • 2022
  • Unplanned land use, that is, unplanned development, causes various negative externalities. In the past, Korea has experienced significant socio-economic costs due to reckless development centered on the boundary between urban and non-urban areas.. Unplanned land use can be viewed as a result of the interaction of various factors.. Therefore, it is difficult to develop in areas where unplanned land use occurs intensively. It is necessary to strengthen legal and institutional measures so that negative externalities do not persis. In this study, we present a spatial analysis methodology to effectively find spatial clusters where unplanned land use is concentrated. By demonstrating and applying this to individual development activities that occurred in Asan City, we examine the usefulness of information to support decision making when establishing mid-to-long-term growth management strategies at the local government level.

Spatio-temporal Changes of Urban Sprawl Process in Seoul Metropolitan Area : Spatial Structure-based Approach (수도권 스프롤 양상의 시공간적 변화 : 공간구조 기반 접근)

  • Lim, Sujin;Kim, Kamyoung
    • Journal of the Korean association of regional geographers
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    • v.22 no.3
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    • pp.628-642
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    • 2016
  • In small countries such as Korea, rapid expansion of cities has been pointed out as the main cause of urban and environmental issues. In order to understand the urban problems caused by urban sprawl and prepare countermeasures for it, urban sprawl must be accurately measured first of all. The purpose of this study is to analyze the spatio-temporal changes of urban sprawl process in Seoul Metropolitan Area using landscape indices which measure the degree of urban sprawl in terms of urban structure such as area, distribution, and shape of urbanized area. FRAGSTATS, which is a tool for landscape analysis, is utilized to calculate landscape indices. Major findings are as follows. First, the urban sprawl in Seoul Metropolitan Area has been continually intensified since the late 1980s and this tendency was more clearer in the 1990s than the 2000s. While leapfrog development is relatively prominent in the 1990s, infilling development is remarkable in the 2000s. Second, the progress and development types of sprawl progress were different according to the zones which are defined based on Seoul Metropolitan Area Readjustment Planning Act. Congestion Restrain Zone shows the highest level of urban sprawl in terms of the evaluated landscape indices, but infilling development was predominant. In Growth Management Zone1, leapfrog development was dominant in the 1990s and infilling development in the 2000s. In Growth Management Zone1, leapfrog development has been continually remarkable since the late 1980s. Nature Conservation Zone shows the lowest level of sprawl, but its sprawl tendency is gradually being intensified. Third, the sprawl tendency in Seoul Metropolitan Area was different according to the distance and direction from Seoul. Urban sprawl was remarkable at Si-Guns close to Seoul in the late 1980s, Si-Guns close to Seoul and the southern part of Seoul in the late 1990s, and the southern and northern parts of Seoul in the late 2000s.

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Remote Sensing To Study Urban Heat Island Effects in Bangkok Metropolitan Region

  • Hung, TRAN;YASUOKA, Yoshifumi
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.741-743
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    • 2003
  • This study focuses on monitoring the surface UHI in a tropical city of Bangkok in both spatial and temporal dimensions based on MODIS- and TM -derived land surface temperature (LST). The spatial extension and magnitude of the surface UHI are explored for days and nights as well as its variations through the dry (least-clouded) season. Surface UHI growth between 1993 and 2002 is mapped using highresolution LANDSAT TM thermal bands. UHI patterns are, then, analyzed in association with land/vegetation covers derived from high-resolution ETM+ and ASTER satellites and ancillary data.

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A Study of Energy and Spatial Structure -The Case of Rural-urban Regional Settlement- (에너지와 空間構造에 關한 硏究 -農村 $\cdot$ 都市地域 生 圈의 境遇-)

  • Kim, Kwi-Gon;Kim, Myung-Jin;Sung, Hyun-Chan;Lee, Ho-Jin
    • Journal of Korean Society for Atmospheric Environment
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    • v.4 no.1
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    • pp.45-57
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    • 1988
  • This is a close relationship between energy consumption and the way in which we develop and manage our regions. This study has estimated and compared energy requirements for the journey to work, resulting from alternative population and employment growth patterns in a rural-urban regional settlement of Korea. The broad scope of work was as follows: i) Select the study area ii) Formulate alternative growth patterns iii) Develop the Hansen and double-constrained gravity model iv) Application of Vogel's approximation method and the developed Hansen and gravity model to the case study area. v) Analyze the relationship between spatial structure, transport energy-requirements and environmental pollution. At issue here is the trade-off between air pollution averages and variations. Policies concentrating manufacturing industry and other regional facilities, for instance, may indeed reduce average pollution levels at the benefit of less-car miles, thus, reducing auto pollution, in the region, but increase local pollution peaks.

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A study on Integrating Strategy of Low-carbon Urban Planning System (탄소저감 도시계획 시스템의 통합화 방안 도출 연구)

  • Park, Chan Ho;Kim, Bum Seok
    • Spatial Information Research
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    • v.21 no.2
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    • pp.99-106
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    • 2013
  • Through the rapid economic growth, modern society have achieved the industrialization but needed to respond to climate change and low-carbon green growth on a scale of urban area. Many studies about the low-carbon city and the green city are on going, but most of them are not integrated but go along in each area(construction, transportation, energy, etc) In this paper, we surveyed the current status of researches about information system to design low-carbon city or green city, and define the method to integrate the outcomes from the each area. As a result integrated model of 'Low-carbon Urban Planning integrated System' in the paper, Individual system is developed by way of C/S form because web system raised problems for data load in analysis. The integrated system was decided to develop by way of Web form, and integrated system was developed by can use the analysed DB in the individual system. We expect this study can help future researches to develop more economical and efficient integrated information system model to design the low-carbon city and the green city.

Change in the Spatial Structure of Commercial Areas in Daegu (대구시 상업지역의 구조 변화)

  • Kim, Ta-Yeul;Jin, Won-Hyung
    • Journal of the Korean association of regional geographers
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    • v.14 no.4
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    • pp.367-381
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    • 2008
  • The purpose of this paper is to analyze the change in the distribution and hierarchical structure of commercial land use. Tools for analyzing the spatial structure are index of concentration, coefficient of localization and location quotient. This research is applied to Daegu, focusing on the period 1985-2003. During the 1985-2003 period, the growth rate of commercial land use volume amounted to 330%, compared with a population growth rate of 118%. The biggest component of commercial land use is the retail sector. As the lodging, medical, transportation-warehouse and entertainment sectors have the propensity for concentration and comprise the specialized commercial areas in the suburbs, the other sectors arc evenly distributed. Jung-gu has functioned as a downtown core in the hierarchical structure of commercial areas. So, in the structure of commercial land use, Daegu has continued to be a single nuclear structure. But, Dongdaegu Station influence area has evolved into the second order center since 2000. This is the sign of change in spatial structure from single-nuclear pattern to multi nuclear pattern.

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A Study on the Spatial Data Infrastructure Development Methods in Abu Dhabi through Gap Analyses on Spatial Information between the Emirate of Abu Dhabi and the Republic of Korea (한국-아부다비 공간정보 격차분석을 통한 아부다비 공간정보인프라의 발전 방안 연구)

  • Kim, Kirl
    • Spatial Information Research
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    • v.23 no.3
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    • pp.101-111
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    • 2015
  • The Emirate of Abu Dhabi is swiftly rising into a newly industrialized country by achieving economic prosperity among the Islamic cultural regions of Middle East and North Africa(MENA). Abu Dhabi Emirate is performing the conversion from oil economy to non-oil economy and the sustainable urban development policy. However, there are various social and environmental problems in Abu Dhabi. In order to solve the urban problems caused by the rapid economic growth and the changes in society and environment, Abu Dhabi is recognizing the importance of spatial information and triggering the establishment of spatial information. Spatial information is regarded as a basic infrastructure for urban construction and enlarged as a blue ocean market in Abu Dhabi. However, the base of spatial data infrastructure in Abu Dhabi is not well managed in comparison to that of Korea. Especially, Abu Dhabi has some characteristics that it depends on foreign multinational companies and it does not have its own systemic organization and law system. To advance into Abu Dhabi spatial data market under-controlled by global vendors, it is necessary to identify the advantage and disadvantage on spatial data infrastructure of Abu Dhabi and required to establish the advance methods into niche markets by considering priority order of spatial information. Thus, this study aims to analyze the gap of spatial information between Abu Dhabi and Korea and suggest the short and long term development methods for spatial data infrastructure of Abu Dhabi. The results of gap analyses will be the milestone for Korean companies' advance into MENA.