• Title/Summary/Keyword: Urban changes

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Capturing the Underlying Structure of a 'Segment-line' City: Its Configurational Evolution and Functional Implications

  • Ling, Michelle Xiaohong
    • International Journal of High-Rise Buildings
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    • v.6 no.2
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    • pp.139-147
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    • 2017
  • Analyzing morphological evolution over a long period of time is deemed an effective way to identify problems occurring in the process of urban development, in addition to achieving a fundamental understanding of socio-cultural changes and growth rooted from the context. As far as the urban morphology is concerned, Hong Kong is characterized by its unique high-density and compact layout patterns, which have aroused the interest of a number of authors in the urban design domain. Whilst an increasing number of redevelopment projects in Hong Kong were criticized for ignoring and destroying the old urban fabric, there is a need for research to investigate the origins and changes of various urban patterns and their implications for society. By employing the theories and techniques of space syntax, this paper accordingly provides a morphological analysis based on the Wanchai District - a 'Segment-line' city, which particularly epitomizes various urban grids of Hong Kong and may have different implications for functional aspects. By axial-mapping the urban layouts of five stages of growth since 1842 and subsequently investigating their spatial and functional transformation over the past 170 years, this paper identifies a series of spatial characteristics underlying different grid patterns, as well as achieves a precise understanding of their ever changing relationship. Based on these understandings, this paper intends to provide valuable reference and guidance for upcoming spatial development in Hong Kong and other regions.

A Study on the Urban Changes of Hanseongbu漢城府 through Analysis on Kwangmu-Census光武戶籍 (한성부(漢城府)의 '통호번도(統戶番圖)' 제작과정을 통해 본 대한제국기(大韓帝國期) 관광방(觀光坊) 대형필지의 변화양상)

  • Chung, Jung-Nam
    • Journal of architectural history
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    • v.20 no.1
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    • pp.7-22
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    • 2011
  • This paper deals with a fundamental study for '$Tonhobeondo$統戶番圖-making' of Hanseongbu(modern Seoul) before the Japanese colonial period. '$Tonhobeondo$統戶番圖-making' will be accomplished through analysis on Kwangmu-census光武戶籍 as a map of address-system in the Joseon period. It is possible to consider the urban changes of Hanseongbu(modern Seoul) because of '$Tonhobeondo$統戶番圖' reflects a urban situation from the 1897 to 1906. At present, an address-system of Korea was made by the cadastral survey in the 1914. By the way, new address-system was a completely different from traditional address-system of Joseon period. Consequently, different two address-system caused a lot of difficulties the study on the urban changes. For such a reason '$Tonhobeondo$統戶番圖-making' is very important. If '$Tonhobeondo$統戶番圖-making' would be accomplished, it will be used by a field of urban, architectural and historical science study besides.

The Change of Economic Space and the Classification of Urban-Rural Consolidated Cities in Gyeonggi-do (경기도 도농복합시의 경제공간 변화와 유형 분류)

  • Son, Seungho
    • Journal of the Economic Geographical Society of Korea
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    • v.18 no.1
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    • pp.45-59
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    • 2015
  • The urban-rural consolidated city has emerged in order to promote the balanced development of urban region and rural region. Targeted 11 urban-rural consolidated cities in Gyeonggi Province, this paper investigated the changes of economic space in accordance with the location of industrial activities. The number of establishments has increased in all cities. From the analysis of the changes in the economic space divided into urban regions and rural regions, concentration phenomenon of economic activities in urban regions was strengthened in 9 cities with the exception of Icheon-si and Anseong-si. Concentration of economic activities in urban region was noticeable in Namyangju-si, Pocheon-si, and Yongin-si. 5 types were derived from the classification on the basis of locational changes of economic activities in urban region and rural region. They are 1) urban-rural gap deepen type, 2) urban region growth slowdown type, 3) rural region growth type, 4) urban-rural balanced growth type, and 5) urban region-led growth type. While urban-rural gap of the cities close to highly urbanized city or metropolis has intensified, the growth of urban region was weakened in the cities located away from the metropolis.

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Changes of Concentration of Al, Mn and Ni in Throughfall, Stemflow and Rainfall (수관통과우, 수간류 및 임외우에서 Al, Mn 및 Ni의 농도 변화)

  • 이총규;김우룡;김종갑
    • The Korean Journal of Ecology
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    • v.22 no.5
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    • pp.295-298
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    • 1999
  • This study was carried out to investigate the changes in concentration of heavy metals in throughfall, stemflow and rainfall at the survey area. The Al concentration of Pinus thunbergii forest was 1.3 times higher than those of Quercus acutissima forest at industrial area, and 2.1 times higher at urban area. The Al concentration of stemflow was 2.3 times and 113 times, 4.8 times and 55 times, respectively, higher than those of throughfall, and rainfall at both industrial and urban area. The Al concentration of rainfall was lower at industrial and urban area. The Mn concentration of Pinus thunbergii forest was 2.4 times higher than those of Quercus acutissima forest at urban area. Heavy metal concentrations in rain water were the higher in stemflow, and in the order of throughfall and rainfall. Seasonal changes of heavy metal concentration were the highest on December at industrial area, and were higher in the order of March>June>August. Seasonal changes were not remarkable at urban area. Heavy metal concentrations were higher in the order of Al>Mn>Ni at industrial area, and Mn>Al>Ni at urban area.

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A Study on Changes and Challenges in Operation of Urban Regeneration Project in Gangwon-do Due to COVID-19 (코로나19 사태에 따른 강원도 도시재생사업 운영 변화와 과제)

  • Ham, Kwang-Min
    • Journal of Environmental Science International
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    • v.30 no.2
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    • pp.153-159
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    • 2021
  • This study aims to suggest the direction of urban regeneration policies of Gangwon-do in accordance with COVID-19 outbreak, and the results are as follows. First, it is inevitable to urgently execute the project from the perspective of cities and counties in Gangwon-do, where the promotion of urban regeneration projects has been delayed due to COVID-19 incident. As a result, it is highly likely to cause the employees overloaded and have negative effect on achieving the goals of urban regeneration, so, it is necessary to provide support measures at the government and provincial level, such as the actual execution index and the adjusting time of start and completion of particular business. Second, as the uncertainty of COVID-19 continues, it needs to strengthen the operation and monitoring of urban regeneration support centers in Gangwon-do and examine the changes in business operation plans in advance. In particular, the decrease in visitors to traditional markets and restaurants is expected to have a direct effect on small business owners engaged in the service industry. Therefore, it is necessary to actively consider the utilization plans of smart city regeneration, such as online shopping and non-contact payment. Third, it is necessary to phase in smart urban regeneration training focused on information weakness to narrow the digital gap, in preparation for general lifestyle changes such as contactless and non-face-to-face interactions. At a time when new light is being shed on local areas, which are quieter than heavily populated cities, a project that reflects the regional characteristics and culture of Gangwon-do is necessary.

Identifying Urban Heat Island Effects due to Urban Land Use Change

  • Shin Dong-hoon;Lee Kyoo-seock
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.22-24
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    • 2004
  • The land use has changed rapidly since 1960s in accordance with urbanization in Seoul Metropolitan Region. As a result, the urban microclimate has undergone changes as well. This study aims to recognize trend of the urban heat island change which is caused by land use change during urbanization in large city. Thermal data of Landsat TM images in 1987 and 1999 were for land surface temperature change detection in the study.

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A Study on Green Net-Work Construction for Urban Heat Island Mitigation in Dalseo District, Daegu Metropolitan City (도시열섬현상 저감을 위한 그린네트워크 구축 방안에 관한 연구 - 대구광역시 달서구를 대상으로 -)

  • Kim, Gi Ho;Kim, Su Bong;Jeong, Eung Ho
    • Journal of Environmental Science International
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    • v.13 no.6
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    • pp.527-535
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    • 2004
  • As urbanization has been expanded in Korea, open spaces, such as urban parks and public sites, have been utilized for other uses, and then this bring out environmental changes for the worse. It is expected that these changes become more serious problems due to overpopulation, increasing individualism, and development of transportation. This research base on the consideration of connecting between decreasing urban green spaces and distributed green sites so as to build the substantial plan for the Green Network construction for urban heat island mitigation in Dalseo district, Daegu Metropolitan City. The result were as follow; 1) Connecting existing natural sites to the remained parks green zone made an Ideal form of Green-Network system. 2) Some school sites were selected for usable open spaces in order to build Green-Network system, and the plan connecting together with exist natural sites was suggested. 3) Moreover, the scheme of planting on the road spaces for connecting green spaces was proposed. 4) The devices of planting on the urban riverside for enhancing the role of urban stream to form green network was conceived.

Towards a Machine Learning Approach for Monitoring Urban Morphology - Focused on a Boston Case Study - (도시 형태 변화 모니터링을 위한 머신러닝 기법의 가능성 - 보스톤 사례연구를 중심으로 -)

  • Hwang, Jie-Eun
    • Design Convergence Study
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    • v.16 no.5
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    • pp.125-140
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    • 2017
  • This study explores potential capability of a machine learning approach for monitoring urban morphology based on an evident case study. The case study conveys year 2006 investigations on interpreting urban morphology of Boston Main Streets by applying a machine learning approach. From the lesson of the precedent study, in 2016, another field research and interview was conducted to compare changes in urban situation, data commons culture, and technology innovation during the decade. This paper describes open possibilities to advance urban monitoring for morphological changes. Most of all, a multi-participatory data platform enables managing urban data system in real time. Second, collaboration with machines with artificial intelligence can intervene the framework of the urban management system as well as transform it through new demands of innovative industries. Recently, urban regeneration became a dominant urban planning strategy in Korean, therefore, urban monitoring is on demand. It is timely important to correspond to in-situ problems based on empirical research.

Revitalization of Urban Regeneration through the Happiness Housing Project as Public Housing Policy

  • Kim, Ok-Yeon;Lee, Jae-Pyeong
    • Land and Housing Review
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    • v.5 no.3
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    • pp.151-167
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    • 2014
  • Urban space structure in South Korea when through drastic changes ever since public housing policies began their full-fledge implementation. That is, public housing policies represent the main cause for formation of the current urban space structure, as the public houses are constructed in accordance with changes of demographic/social structure, considering changes of housing demand, in urban spaces demanded by the end users. After rapid industrialization and urbanization in the 1960's, each government in different periods have implemented housing supply policies through massive urban developments, to resolve the issue of housing shortage and residential instability. Phase 1 New Towns were developed in the 1980's resulting in suburbanization of the Seoul Area, followed by urban sprawl due to construction of small-size New Towns after deregulation in the 1990's, and construction of Phase 2 New Towns for resolution of housing shortage in the early 2000's and the resulting urban problems. In the mid-2000's, construction of Bogeumjari houses in GB areas led to insufficient housing supply in downtown areas, and the period after 2010 witnessed continuous deterioration of existing urban areas and acceleration of the rental housing crisis caused by rental housing shortage in downtown areas. Moreover, the residentially vulnerable classes consisting of young, 1~2-member households is expanding, with the real estate market in recess. Therefore, the government is trying to achieve urban regeneration through public housing policies so as to resolve the urban space problem and the housing problem at the same time, and the Happiness Housing Project has been implemented as a policy to achieve that goal. The Happiness Housing Project for young, residentially vulnerable classes in downtown areas, is going through diversification aimed at conjunction with urban regeneration projects in downtown areas, as exemplified by conversion of rental houses in residential environment improvement project districts and redevelopment/reconstruction project districts into happiness housing, and supply of happiness housing in conjunction with small reorganization projects for deteriorated residential areas in such areas as those excluded from New Town designation. Continuous supply of Happiness Housing in conjunction with urban regeneration requires mixed-use residential development which includes convenience facilities and public facilities, along with improvement of rental conditions (rental period/rent) and diversification of project methods, considering that the project is implemented in downtown areas.

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
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    • v.24 no.2
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    • pp.40-51
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    • 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.