• Title/Summary/Keyword: urban infrastructure

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Modern Urbanization Process of Ganggyeong during the Japanese Colonial Period, focused on Installation of Urban Infrastructure (일제강점기 도시기반시설의 설치를 통해 본 강경의 도시화 과정)

  • Hyun, Tae-jun;Kim, Ki-Joo;Lee, Yeon-Kyung
    • Journal of architectural history
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    • v.28 no.6
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    • pp.55-65
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    • 2019
  • Ganggyeong, a city which is located at riverside of Geum River, played a role to connect the inland cities and the coastal cities through the Geum river waterway. In Chosun dynasty, Ganggyeong was one of the three major markets in Korea, and at the same time, it was one of the two river docks in Korea. However, after the railway was installed in Korea, railroad was more important than waterway in transporting logistics and in 1911 Honam railroad and Ganggyeong railway station was installed. Thus it was necessary to reorganize urban structure of Ganggyeong city from the traditional river-dock city to modern railroad city. In addition, urban infrastructure to prevent flood damage was needed because Ganggyeong suffered from floods and water shortages every year. Therefore, between 1910s and 1930s large-scale social infrastructures including road, water and sewage system, river bank, floodgate was constructed not only to revitalize the declining city but also to prevent flood damage and water shortages that hinder urban development. The installation of urban infrastructure has enabled the urban expansion and development of Ganggyeong city, and it is still served as a basic urban structure.

A Study on the Characteristic of Ubiquitous Infrastructure for u-City (u-City 도시기반시절의 특성에 관한 연구)

  • Eum, Min-Kyung;Song, Seung-Min;Kim, Do-Nyun
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.5
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    • pp.93-102
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    • 2011
  • IT technologies applied in the urban places are being promoted in each area. Especially infrastructure is performed in the central role of technical support in urban area. However, u-City infrastructure has lack of integrated way and concentrated on only feasible technology which cause frequent substitution and the nested technology in urban area. Therefore this study sheds light on infrastructure through a overall considerations of urban compositional elements and interactions, and apply technology in the process of the industrial era, the domestic supply of urban infrastructure and the cycle comparison-analysis deal with the domestic implications when applied. The results of the study, first, the u-City infrastructure should be supplied by public. Second, u-City infrastructure is in need of the agile character, and standardization of the subtleties is needed. Third, a new system of integrated-macroscopic perspective should be established by changes that influenced by convergences of IT technologies and infrastructures. Fourth, u-City infrastructures planning should consider interactions of services, devices and systems.

Research on the Correlation Between Rail Transit Entrances and Urban Form in High-Density Areas

  • Dongzhu Chu;Hong Su
    • International Journal of High-Rise Buildings
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    • v.12 no.1
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    • pp.35-47
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    • 2023
  • The transport system and its infrastructure are not only the fundamental means of sustaining the operation of contemporary cities, but also important drivers for the evolution of urban form. Rail transit, critical to improving the operational efficiency and optimizing the spatial layout in cities, is one of the critical conditions for high-density areas with limited land and concentrated resources to be compact to take on complex challenges. As a node element of infrastructure, rail transit entrances are the most important points connecting the rail transit system with urban space. Although influenced by urban form, their quantity and location also influence and shape the evolution of urban space form. Based on the development gap of high-density areas in various contexts, focusing on various rail transit stations in Asia, this research analyzes the correlation between rail transit entrances and peripheral high-density urban form in a delicate, dynamic and granular way. The research considers both horizontal and vertical perspectives, in combination with the urban evolution process in time series, to explore the development trend of high-density urban form in Asia from the aspect of correlation, and building a new foundation for research on urban form, suitable for different types of cities.

An Evaluation of Pedestrian Environments based on the Criteria of Universal Design Theory - A case study of old town area in Seoul - (서울시 유니버설디자인 보행환경 조성을 위한 보행환경 평가 연구 - 서울시 사대문안 사례를 중심으로 -)

  • Jeong, Sangyun;Sohn, Dong-Wook
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.1
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    • pp.117-125
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    • 2019
  • The purpose of this study is to examine urban built environments associated with the walking behavior in order to identify the problem of urban infrastructure from the perspective of Universal design theory. Using the walkability criteria developed based on the findings of previous studies on Universal design theory and walking environment, the urban built environments in old town area of Seoul were evaluated. The results of the evaluation indicated that the pedestrian infrastructure in the study area had several shortcomings to improve in order to provide walking-friendly environments. First, the pedestrian infrastructure for visually impaired people were severely limited. Second, walking traffics in large portion of the street networks were interrupted by a variety of obstacles such as parked cars, signboards, and illegal street shops. Third, there were certain areas where the quality of pavement was not properly managed. In summary, this study provides an empirical data to understand the current situation of pedestrian infrastructure in the urban areas. Improvement of pedestrian infrastructure is needed to address the issues related to the mobility of the disabled people. It is also recommended to construct the GIS data on walking environment in order to develop and mange a long-term public investment plan for walking-friendly urban environments.

Satellite-based Assessment of Ecosystem Services Considering Social Demand for Reduction of Fine Particulate Matter in Seoul

  • Lim, Chul-Hee
    • Korean Journal of Remote Sensing
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    • v.38 no.4
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    • pp.421-434
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    • 2022
  • Fine particulate matter (PM2.5) has been the biggest environmental problem in Korea since the 2010s. The present study considers the value of urban forests and green infrastructure as an ecosystem service (ES) concept for PM2.5 reduction based on satellite and spatial data, with a focus on Seoul, Korea A method for the spatial ES assessment that considers social demand variables such as population and land price is suggested. First, an ES assessment based on natural environment information confirms that, while the vitality of vegetation is relatively low, the ES is high in the city center and residential areas, where the concentration of PM2.5 is high. Then, the ES assessment considering social demand (i.e., the ESS) confirms the existence of higher PM2.5 values in residential areas with high population density, and in main downtown areas. This is because the ESS of urban green infrastructure is high in areas with high land prices, high population density, and above-average PM2.5 concentrations. Further, when a future green infrastructure improvement scenario that considers the urban forest management plan is applied, the area of very high ESS is increased by 74% when the vegetation greenness of the green infrastructure in the residential area is increased by only 20%. This result suggests that green infrastructure and urban forests in the residential area should be continuously expanded and managed in order to maximize the PM2.5 reduction ES.

SUSTAINABILITY SOLUTIONS USING TRENCHLESS TECHNOLOGIES IN URBAN UNDERGROUND INFRASTRUCTURE DEVELOPMENT

  • Dae-Hyun (Dan) Koo;Samuel Ariaratnam
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.367-374
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    • 2013
  • Underground infrastructure systems provide essential public services and goods through buried structures including water and sewer, gas and petroleum, power and communication pipelines. The majority of existing underground infrastructure systems was installed in green field areas prior to development of complex urban built environments. Currently, there is a global trend to escalate major demand for underground infrastructure system renewal and new installation while minimizing disruption and maintaining functions of existing superstructures. Therefore, Engineers and utility owners are rigorously seeking technologies that minimize environmental, social, and economic impact during the renewal and installation process. Trenchless technologies have proven to be socially less disruptive, more environmentally friendly, energy conservative and economically viable alternative methods. All of those benefits are adequate to enhance overall sustainability. This paper describes effective sustainable solutions using trenchless technologies. Sustainability is assessed by a comparison between conventional open cut and trenchless technology methods. Sustainability analysis is based on a broad perspective combining the three main aspects of sustainability: economic; environmental; and social. Economic includes construction cost, benefit, and social cost analysis. Environmental includes emission estimation and environmental quality impact study. Social includes various social impacts on an urban area. This paper summarizes sustainable trenchless technology solutions and presents a sustainable construction method selection process in a proposed framework to be used in urban underground infrastructure capital improvement projects.

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A Study on the Computerized System for Maintenance of Urban Rail Transit Infrastructure (도시철도 토목$\cdot$보선시설물 유지보수 정보화시스템에 대한 연구)

  • Shin, Jeong-Ryol;Park, Kee-Jun;Ahn, Tae-Ki;Lee, Ho-Yong;Kim, Gil-Dong
    • Proceedings of the KSR Conference
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    • 2003.10b
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    • pp.391-396
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    • 2003
  • For efficient maintenance on urban transit infrastructure, computerized system using wireless communication system which allows to inquire necessary data and to record maintenance work on the spot in realtime is required. Also, for efficient maintenance progress on urban transit infrastructure which have geographic data, computerized system united with geographic information system that offers visual information is required. In this paper, investigations on new IT technology and on computerized system of foreign country are conducted. And development direction and model of computerized system for maintenance on urban transit infrastructure are proposed.

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Going Abroad for Urban Management Projects: A Case Study of Kuwait New Town (도시관리사업의 해외 진출방안 연구: 쿠웨이트 신도시를 대상으로)

  • Lee, Sangheon;Jeong, Yeun-Woo
    • Land and Housing Review
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    • v.13 no.2
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    • pp.1-15
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    • 2022
  • This study reviews urban infrastructure and housing management in Kuwait to establish a strategy for going abroad in an urban management sector after the construction of the Kuwait New Town. This study reviews legal systems and governance related to urban infrastructure and housing management as well, offering implications that are collated from international and Korean case studies. By doing so, this paper proposes a governance structure for urban infrastructure and housing management along with key agendas for local institutional improvements. This study suggests that the establishment of a legal system equivalent to the Korean Multi-family Housing Management Act is a key to institutional improvements. The (tentatively entitled) 'Housing Management Act' is proposed to specify the scope and the ways of management in mandatory management subject to local conditions. The direction of going abroad, such as the management scope and the implementation system, discussed in this study can be used as a reference when expanding into other countries in the Middle East that have similar institutional environments to Kuwait in urban infrastructure and housing management.

i-Tree Canopy-based Decision Support Method for Establishing Climate Change Adaptive Urban Forests (기후변화적응형 도시림 조성을 위한 i-Tree Canopy 기반 의사결정지원 방안)

  • Tae Han Kim;Jae Young Lee;Chang Gil Song;Ji Eun Oh
    • Journal of the Semiconductor & Display Technology
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    • v.23 no.1
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    • pp.12-18
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    • 2024
  • The accelerated pace of climate crisis due to continuous industrialization and greenhouse gas emissions necessitates sustainable solutions that simultaneously address mitigation and adaptation to climate change. Naturebased Solutions (NbS) have gained prominence as viable approaches, with Green Infrastructure being a representative NbS. Green Infrastructure involves securing green spaces within urban areas, providing diverse climate adaptation functions such as removal of various air pollutants, carbon sequestration, and isolation. The proliferation of Green Infrastructure is influenced by the quantification of improvement effects related to various projects. To support decision-making by assessing the climate vulnerability of Green Infrastructure, the U.S. Department of Agriculture (USDA) has developed i-Tree Tools. This study proposes a comprehensive evaluation approach for climate change adaptation types by quantifying the climate adaptation performance of urban Green Infrastructure. Using i-Tree Canopy, the analysis focuses on five urban green spaces covering more than 30 hectares, considering the tree ratio relative to the total area. The evaluation encompasses aspects of thermal environment, aquatic environment, and atmospheric environment to assess the overall eco-friendliness in terms of climate change adaptation. The results indicate that an increase in the tree ratio correlates with improved eco-friendliness in terms of thermal, aquatic, and atmospheric environments. In particular, it is necessary to prioritize consideration of the water environment sector in order to realize climate change adaptive green infrastructure, such as increasing green space in urban areas, as it has been confirmed that four out of five target sites are specialized in improving the water environment.

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Theoretical Terrains and Design Strategies of Landscape Urbanism (Landscape Urbanism의 이론적 지형과 설계 전략)

  • 배정한
    • Journal of the Korean Institute of Landscape Architecture
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    • v.32 no.1
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    • pp.69-79
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    • 2004
  • This Paper examines theoretical terrains and design strategies of landscape urbanism which is an emerging hybrid field at the intersection of architecture, landscape architecture, and urbanism. Landscape urbanism offers alternative approaches for theory, education, and practice in contemporary landscape architecture. It views the emergent urban complex sites-post-industrial sites, landfill, brownfield, urban void, etc., not as a weakness, but as a strength. Landscape urbanism poses an understanding of landscape as an element of urban infrastructure. In this sense, the landscape is seen in the context of contemporary urban development and public works. As a complex amalgam, landscape urbanism is more than a design style it is an ethos, an attitude, a way of thinking and acting. We can chart the main characteristics of landscape urbanism such as horizontality and surface, infrastructure, process, technique, and ecology. Multilayered examples of landscape urbanism can be seen in several experimental practices such as worts of Rem Koolhaas, MVRDV, Adriaan Geuze/West 8, James Comer, etc. It is possible to summarize the productive strategies for landscape urbanism as follows : thickening, folding, new materials, nonprogrammed use, impermanence, and movement.