• Title/Summary/Keyword: Urban Problems

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Procedure to Lay Down a Standard Design Specification and Application on Urban Transit Power System (도시철도 급전시스템의 표준 설계지침서 작성절차 및 적용 방안)

  • Kim, Joo-Rak;Oh, Kwang-Hae
    • Proceedings of the KSR Conference
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    • 2003.10c
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    • pp.535-540
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    • 2003
  • Urban transit, which takes an important role of traffic volume, is operated in four different urban communities and constructed in two urban communities. However, the urban transit of each communities has different system in operation and construction. It is not efficient to construct and operate. Furthermore, is difficult to maintain urban transit system. In this paper, the standardization of power supply system for urban transit has been performed to solve above problems.

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A study of construction and conception for Ubiquitous urban hazard mitigation management system (유비쿼터스 도시방재관리시스템의 개념정립과 구축에 관한 연구)

  • Jo, Byung-Wan;Shin, Byung-Chul;Park, Jung-Hoon;Yoon, Kwang-Won;Oh, Sei-Yung;Kim, Heoun;Yang, Yo-Sub
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2008.04a
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    • pp.608-613
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    • 2008
  • The society increased interest because the scale and size of disaster is getting gradually large. However, urban hazard mitigation management of existing system had many problems about prompt hazard mitigation (prevention, provision, confrontation, restoration) in the event of disaster. For these reasons, this paper presents ubiquitous urban hazard mitigation management system of new ideas which are fusion ubiquitous technology and urban hazard mitigation management system to solve the existing system problems.

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A Study for Open Space System Establishment of Chonju City -Chiefly as Viewed the Concept of Specified Nodes & Corridors- (전주시 "오픈스페이스"체계 수립에 관한 연구: 특화된 결정점과 "코리도"개념의 도입을 중심으로-)

  • 최만봉;김재식
    • Journal of the Korean Institute of Landscape Architecture
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    • v.15 no.1
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    • pp.69-84
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    • 1987
  • According to the complexity and the pluralism of the modern cities, they are changing themselves into the multinoded and social - classless urban environments. The sudden drift of population to the cities is giving rise to the serious environmental problems, and the rapid increase of recreational needs among the citizen is changing the urban society into a leisure - oriented one. In order to coping with the abrupt change in the social and natural urban environments, the various fields of urban society should be co - ordinated. The study uses the green - city concept to get solves the incongruity of urban structure in Chonju City. The existing open space maps were drawn up by the various techniques such as the analysis of the topographic maps and collected data, the interpretation of the aero-photographs and the reconnaissance of site. The authors suggested the existing condition, and the problems and potentials of open space elements in Chonju City through the analysis of the existing condition maps. After synthesizing the contents of analysis, the 7u(hors established an exclusive open space system for Chonju City.

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Regional Air Pollution Problems in East Asia and International Role of Research Exchange

  • Akimoto, Hajime
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2000.11a
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    • pp.8-8
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    • 2000
  • As economy and population have been growing, air pollution problems both in local and regional scale came to the surface in East Asia in last decades. In addition to urban problems, regional air pollution is also becoming a big issue international concern. Urban and regional air pollution issues are closely related and we have to tackle the problem by understanding underlying scientific reality and taking a strategic approach to mitigation. (omitted)

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A Study on the Development of Urban Environmental Evaluation Indicator and Its Application for the Fifth and Sixth Graders based on the Eco-City Concept (생태 도시 개념을 적용한 도시 평가 지표 개발 및 활용 방안 연구 - 초등학교 5, 6학년을 중심으로 -)

  • Jang, Ho-Chang;Nam, Young-Sook
    • Hwankyungkyoyuk
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    • v.20 no.2
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    • pp.78-92
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    • 2007
  • The purindicator and its application through the application of the eco-city concept. To achieve this aim, this study execute to erect eco-city concept, to develop urban evaluation indicator for the fifth and sixth graders of elementary school, to survey for elementary school teacher in Daegu and to develop application of urban evaluation indicator for the fifth and sixth graders of elementary school. The result of study can be summarized as follow. First, erecting the eco-city concept and urban evaluation indicator for the fifth and sixth graders of elementary school was developed with 14 objects, such like that saving and sound circulation of water resource, sound atmosphere. Second, The result of survey, generally, teachers evaluated that Daegu has problems. The degree of interest of urban environmental problem of Daegu showed that each problem had relatively equal distribution. Teachers had positive response that the ecocity concept applied to environmental education of elementary school. Selection of educational contents had distinct tendency with application of the concept of ecocity. Teachers indicated several problems in environmental education of elementary school. Third, We develop application of indicator for the fifth and sixth graders of elementary school. We concluded that developing application of indicator will offer as follows: First, student and teacher can logically understand urban environmental problems. Second, application of indicator had role of useful tool for environmental education of elementary school.

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Urban Sprawl prediction in 2030 using decision tree (의사결정나무를 활용한 2030년 도시 확장 예측)

  • Kim, Geun-Han;Choi, Hee-Sun;Kim, Dong-Beom;Jung, Yee-Rim;Jin, Dae-Yong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.23 no.6
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    • pp.125-135
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    • 2020
  • The uncontrolled urban expansion causes various social, economic problems and natural/environmental problems. Therefore, it is necessary to forecast urban expansion by identifying various factors related to urban expansion. This study aims to forecast it using a decision tree that is widely used in various areas. The study used geographic data such as the area of use, geographical data like elevation and slope, the environmental conservation value assessment map, and population density data for 2006 and 2018. It extracted the new urban expansion areas by comparing the residential, industrial, and commercial zones of the zoning in 2006 and 2018 and derived a decision tree using the 2006 data as independent variables. It is intended to forecast urban expansion in 2030 by applying the data for 2018 to the derived decision tree. The analysis result confirmed that the distance from the green area, the elevation, the grade of the environmental conservation value assessment map, and the distance from the industrial area were important factors in forecasting the urban area expansion. The AUC of 0.95051 showed excellent explanatory power in the ROC analysis performed to verify the accuracy. However, the forecast of the urban area expansion for 2018 using the decision tree was 15,459.98㎢, which was significantly different from the actual urban area of 4,144.93㎢ for 2018. Since many regions use decision tree to forecast urban expansion, they can be useful for identifying which factors affect urban expansion, although they are not suitable for forecasting the expansion of urban region in detail. Identifying such important factors for urban expansion is expected to provide information that can be used in future land, urban, and environmental planning.

Comparative Study About the Features of the Japanese Green Area Policy Changes - In Case of the Urban Green Area Law and Urban Park Law Amended in 2004 - (일본의 녹지정책 변화 특성에 관한 비교 연구 - 2004년 개정된 도시녹지법과 도시공원법을 중심으로 -)

  • Kang, Myung-Soo;Sung, Hyun-Chan
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.8 no.2
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    • pp.65-75
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    • 2005
  • A green area plan is getting attention as a way to solve the recent urban problems such as the rise of environment problems. To correspond to this change, there were dramatic amendments for the green area related laws. These amendments are appraised as the epochal turning point for the green area policies. This study is to introduce the main contents of amended urban green area law and urban park law in Japan, to compare with the Korean green area related laws, and to summarize the special features of both countries' green policies and the comments about the Korean green area policy structures. As a result, this amendment of Japan established the unified green area policy structure supporting the green area policies of municipal governments and is inducing living environment improvement by securing green area in the center of city, support, and the participation of residents. On the other hands, this amendment of Korea is a lack of the systemization of green area policy and the phased establishments of green area plan in spite of the scope of whole city because of absence of the unified high level plan.

A Study on the Housing Complex Planning in the Ubiquitous City (유비쿼터스 도시계획에 있어서 주거계획 문제에 관한 고찰)

  • Kim, Mi-Yun;Park, Nam-Hee;Choi, Jin-Won
    • Journal of the Korean housing association
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    • v.20 no.5
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    • pp.1-8
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    • 2009
  • Ever-developing information and communications technology has changed the ways of life from that of industrial society to the information-oriented community, and is widely used in a variety of social and economic contexts. Besides, urban problems in today's society are intricately involved so that the possibility of any reliable breakthrough may not to be likely. To work out these complicated problems as well as to understand the crux of the matter more comprehensively, ubiquitous urban planning has been laid out, and as a result attempts to reflect this system are cautiously made in metropolitan areas. However, most u-City planning, integrating uibiquitous technology, has focused on creating urban infrastructure and its services, therefore neglecting the importance of housing in urban space. Consequently, thorough u-City planning has yet to be defined in relation with urban space, and housing planning, established on the basis of the user-oriented housing environment, needs to be urgently made. Centering on the importance of housing in the construction of an improved future urban environment, this study aims to discuss the role of urban environment planning where metropolutan residents can enjoy a comfortable and convenient life. As well, this research paper seeks to focus attention on the consideration for users that is often disregarded but requires reflecting in the u-City planning.

A Study on the Housing Complex Planning in the Ubiquitous City (유비쿼터스 도시계획에 있어서 주거계획 문제에 관한 고찰)

  • Kim, Mi-Yun;Park, Nam-Hee;Choi, Jin-Won
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.11a
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    • pp.96-101
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    • 2008
  • Ever-developing information and communications technology has changed the ways of life from that of industrial society to the information-oriented community, and is widely used in a variety of social and economic contexts. Besides, urban problems in today's society are intricately involved so that the possibility of any reliable breakthrough may not to be likely. To work out these complicated problems as well as to understand the crux of the matter more comprehensively, ubiquitous urban planning has been laid out, and as a result attempts to reflect this system are cautiously made in metropolitan areas. However, most u-City planning, integrating uibiquitous technology, has focused on creating urban infrastructure and its services, therefore neglecting the importance of housing in urban space. Consequently, thorough u-City planning has yet to be defined in relation with urban space, and housing planning, established on the basis of the user-oriented housing environment, needs to be urgently made. Centering on the importance of housing in the construction of an improved future urban environment, this study aims to discuss the role of urban environment planning where metropolutan residents can enjoy a comfortable and convenient life. As well, this research paper seeks to focus attention on the consideration for users that is often disregarded but requires reflecting in the u-City planning.

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Study on the Reforming Policies to Manage Vacant Housing of Urban Areas in Korea (도시지역의 빈집정비 활성화를 위한 제도 개선방안)

  • Son, Sang Rag
    • Land and Housing Review
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    • v.11 no.1
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    • pp.67-78
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    • 2020
  • The aim of this study is to minimize the various social problems caused by the growing number of vacant houses in the urban areas and suggest ways to improve the legal and institutional system for promoting the maintenance and utilization of vacant houses. Due to changes in social conditions, the vacant houses continue to increase, and urban regeneration is emerging as a policy tool for renovating old and deteriorating built-up areas. In the face of the necessity of the managing vacant houses and its surrounding areas, it was suggested that vacant housing should be defined as "housing and buildings", not just "housing", since there are limitations on the maintenance of them. In addition, statistics on vacant houses are causing confusion because of the difference between surveyed data and vacant houses, which are recognized as problems in urban areas. Therefore, it was suggested to improve the accuracy and reliability of vacant housing statistics. In order to promote the maintenance and utilization of vacant housing, it was proposed an amendment of vacant housing-related laws that grant substantive tax benefits to enable more active participation of vacant homeowners and people who participate in vacant housing maintenance.