• Title/Summary/Keyword: Urban Problem

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A Study on the Fire Risk of Urban type housing constructed by pilotis structures, -In the case of Uijeongbu fire- (필로티구조 도시형생활주택의 화재위험성에 관한 연구 -의정부사례를 바탕으로-)

  • Hwang, Eu-Cheong;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.50-51
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    • 2017
  • The Urban-type building is an building that it relaxed the construction standard and subsidiary facility standard. The most of the urban-type buildings are pilotis, the main case of representing these building's fire risk is the Uijeongbu fire this study investigated to piloti urban type housing risk on the basis of Uijeongbu fire, and we checked structural problem that unable to escape from the rooftop inside the piloti. also, there was confirmed limit to the evacuation of the occupants because the smoke was rapidly transferred to the top layer through inside the electric duct. and when we analyzed smoke flow use of Fire simulation, it was confirmed Available Safety Egress Time that is four minutes of CO.

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Strategies to Activate Primary Health Care for Low-income Population in Urban Area (도시 저소득층주민을 위한 일차보건의료 활성화 방안)

  • Han Myung Hwa
    • Journal of Korean Public Health Nursing
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    • v.13 no.1
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    • pp.77-87
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    • 1999
  • Poverty directly affects health and well-being, The poor population has a higher rate of chronics illness. higher infant morbidity and motality rates. shorter life expectancy. more complex health problems. and greater physical limitations resulting from chronic disease. In order to activate primary health care for the poverty in urban area the following measures should be taken : 1. Health center must be expended or establish subhealth center. 2. Health center must monitor neighbour's workplace's health management for their working population. 3. Health centers must do active home visiting nursing care for the urban-poor. 4. Health center must carry out flexible problem-centered practice according to the area. 5. For the urban-poor's health care must have organization of the health center & practice according to community's characteristics. 6. Public health care must be closely connected with welfare. 7. For the health care of the urban-poor must demand active community participation. 8. Health center is closely connected with Community hospital. 9. Active management of public health resource system is demanded.

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Seismic Performance and Vibration Control of Urban Over-track High-rise Buildings

  • Ying, Zhou;Rui, Wang;Zengde, Zhang
    • International Journal of High-Rise Buildings
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    • v.11 no.3
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    • pp.207-219
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    • 2022
  • During the structural design of urban over-track high-rise buildings, two problems are most likely encountered: the abrupt change of story stiffness between the podium and the upper towers, as well as the demand for train-induced vibration control. Traditional earthquake-resistant structures have to be particularly designed with transfer stories to meet the requirement of seismic control under earthquakes, and thus horizontal seismic isolation techniques are recommended to solve the transfer problem. The function of mitigating the vertical subway-induced vibration can be integrated into the isolation system including thick rubber bearings and 3D composite vibration control devices. Engineering project cases are presented in this paper for a more comprehensive understanding of the engineering practice and research frontiers of urban over-track high-rise buildings in China.

Land Suitability Analysis using GIS and Satellite Imagery

  • Yoo, Hwan-Hee;Kim, Seong-Sam;Ochirbae, Sukhee;Cho, Eun-Rae;Park, Hong-Gi
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.25 no.6_1
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    • pp.499-505
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    • 2007
  • A method of improving the correctness and confidence in land use classification as well as urban spatial structure analysis of local governments using GIS and satellite imagery is suggested. This study also compares and analyzes LSAS (Land Suitability Assessment System) results using two approaches-LSAS with priority classification, and LSAS using standard estimation factors without priority classification. The conclusions that can be drawn from this study are as follows. First, a method of maintaining up-to-date local government data by updating the LSAS database using high-resolution satellite imagery is suggested. Second, to formulate a scientific and reasonable land use plan from the viewpoint of territory development and urban management, a method of simultaneously processing the two described approaches is suggested. Finally, LSAS was constructed by using varieties of land information such as the cadastral map, the digital topographic map, varieties of thematic maps, and official land price data, and expects to utilize urban management plan establishment widely and effectively through regular data updating and problem resolution of data accuracy.

Big Data Based Urban Transportation Analysis for Smart Cities - Machine Learning Based Traffic Prediction by Using Urban Environment Data - (도시 빅데이터를 활용한 스마트시티의 교통 예측 모델 - 환경 데이터와의 상관관계 기계 학습을 통한 예측 모델의 구축 및 검증 -)

  • Jang, Sun-Young;Shin, Dong-Youn
    • Journal of KIBIM
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    • v.8 no.3
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    • pp.12-19
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    • 2018
  • The research aims to find implications of machine learning and urban big data as a way to construct the flexible transportation network system of smart city by responding the urban context changes. This research deals with a problem that existing a bus headway model is difficult to respond urban situations in real-time. Therefore, utilizing the urban big data and machine learning prototyping tool in weathers, traffics, and bus statues, this research presents a flexible headway model to predict bus delay and analyze the result. The prototyping model is composed by real-time data of buses. The data is gathered through public data portals and real time Application Program Interface (API) by the government. These data are fundamental resources to organize interval pattern models of bus operations as traffic environment factors (road speeds, station conditions, weathers, and bus information of operating in real-time). The prototyping model is implemented by the machine learning tool (RapidMiner Studio) and conducted several tests for bus delays prediction according to specific circumstances. As a result, possibilities of transportation system are discussed for promoting the urban efficiency and the citizens' convenience by responding to urban conditions.

A Study on the Typological Classification of Super-tall Building and Present State of Masterplan Planning Factor in the Site (초고층건축물의 유형화와 부지 내 배치계획요소 계획현황에 관한 연구)

  • Yang, Ki In;Bang, Ki Jin;Je, Hae Seong
    • KIEAE Journal
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    • v.10 no.5
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    • pp.71-76
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    • 2010
  • Recently, the construction and plan of super-tall building is attention link of new town development or urban core regeneration. Super-tall Buildings have many advantages and a lot of affects in urban contexts. Also, construction of super-tall building is will be able to social problem like urban core's decline, loss of openspace, incompatible urban scape, traffic congestion of urban core. But, compares to super-tall buildings affects in urban contexts, there was not extra ordinary study about super-tall building by the urban scale approaches. Therefore, need about study materplan planning of the site which is made to meet super-tall building and urban contexts. There are two main processes in this study. First, to analyze the factors affect to masterplan planning of the super-tall building's site. Through the analyzed factors, classify type of super-tall buildings and identify the type's state. Second, to classify and set the elements of masterplan planning factor in the site. Identify the masterplan planning factor's state by deployment materplan planning factor set the current applied to the constructed super-tall buildings. Through this process, identified the recent trend and providied the basic elements of materplan planning of super-tall building's site.

A study of Analysis and Review of Cargo Urban Railway Stations of Korea for Underground Logistics Systems

  • Myung Sung Kim;Kyung Ho Jang;Young Min Kim;Joo Uk Kim
    • International journal of advanced smart convergence
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    • v.12 no.1
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    • pp.208-219
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    • 2023
  • Recently, as mega-urbanization progresses, urban logistics centered on large cities is growing rapidly, and logistics transportation is increasing due to the lack of logistics infrastructure and the operation of a delivery system using cargo trucks in the city center. being cited as a cause. In order to solve this problem, domestic researchers are conducting research on the development of " Urban Underground railway Logistics System" that minimizes the initial infrastructure construction cost by utilizing the existing urban railway facilities in the city. Therefore, this paper analyzed the usage environment of the actual urban railway station to which the system will be applied in order to derive candidates for the test bed selection of "Urban Underground railway Logistics System". The evaluation criteria for test bed candidate role selection were established, and the candidate group derived from the Brown & Gibson model was used to evaluate the candidate group and derive the candidate role. A review of the results was conducted to contribute to the establishment of a test bed for the " Urban Underground railway Logistics System" under development.

A Vehicle Communication Routing Algorithm Considering Road Characteristics and 2-Hop Neighbors in Urban Areas (도심 환경에서 도로의 특성과 2-홉 이웃 노드를 고려한 차량 통신 라우팅 알고리즘)

  • Ryu, Min-Woo;Cha, Si-Ho;Cho, Kuk-Hyun
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.36 no.5B
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    • pp.464-470
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    • 2011
  • V2V (Vehicle-to-Vehicle) is a special kind of VANET (Vehicular Ad-hoc Network), which has high mobility and frequent topology changes and causes the link breakage problem. To resolve this problem, geographic routing protocols such as greedy forwarding are proposed. However, the greedy forwarding approach selects the node closest to the destination node as the transfer node within the transmission range so that it may cause many problems owing to many intersections and many changes in vehicular traffic in urban areas. The paper proposes a greedy perimeter urban routing (GPUR) algorithm considering the presence of 2-hop neighbor nodes and the road characteristics. Simulation results using ns-2 reveal that the proposed GPUR algorithm significantly reduces the routing error problem and the probability of local maximum than the existing routing protocols.

Analyses on Type and Characteristics of Urban Regeneration for Establishment of Urban Identity (도시정체성 확립을 위한 도시재생의 유형 및 계획특성 분석)

  • Lee, Joo-Hyung;Seo, Eui-Kweon;Lim, Jong-Hyun
    • KIEAE Journal
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    • v.9 no.5
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    • pp.85-96
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    • 2009
  • This study analyzed a characteristic by types of urban regeneration helping the establishment of urban identity under social condition change. It will be foundation of sustainable urban development with strategy that secures world-wide competitive power. For this, sample cases that established identity from urban regeneration were reviewed about the main subject and the supporting subject in business side and hardware, software, system, and finance in design factors. 4samples each in inheritance intensification type and change creation type were selected and analyzed. The result said it is most effective to establish urban identity when inheritance intensification type is the private-centered for urban regeneration. And it is better to do the project that the main subject and the supporting subject are taken by the private or the private-leading partnership. It is necessary to manage the region and plan events with software design factors more than hardware design factors. In addition, for urban identity, it was found to be desirable to utilize and preserve fully current resources such as historical scenery and activate the communities than making new facilities. On the contrary, the project based on change creation type needs to be under the public management with innovative idea. Also, when it comes to design factors, facilities related to culture and art and community spaces should open and run actively. It is important for the region to improve its image by New design style such as TOD. In software side, it is important to manage the region by monitoring about urban regeneration business and solve social mix and employment problem. On the other hand, in terms of system and administration, both types don't show a difference in urban identity establishment, since it is same that both should make partnership and get a support of subsidy to be most effective.

Survey and Analysis of Citizens' Perception for Urban Ecosystem Education - Targeting Suwon City - (도시생태계 교육을 위한 시민 인식 설문조사 및 분석 - 수원시를 중심으로 -)

  • Yoo, Da-Young;Lee, Min-Gi;Kim, Nam-Choon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.23 no.6
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    • pp.75-85
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    • 2020
  • The purpose of this study was to investigate the citizens' perception of urban ecosystem and urban ecosystem education to find out how to plan and create an effective urban ecosystem and how to utilize urban ecosystem education and educational media according to age groups. To this end, an online survey of 416 Suwon citizens was conducted, and based on the responses of the respondents, cross-analysis, multiple-response analysis, and correlation analysis were conducted using the IBM SPSS Statistics Statistical Program. The study found that fewer respondents showed a high understanding of urban ecosystem concepts compared to those who recognized the importance of environmental issues. Nevertheless, most of the respondents were aware of the importance of preserving and protecting the urban ecosystem and responded positively to the inconvenience. In addition, most of the respondents were aware of the need for urban ecosystem education and were found to have different preferred information media depending on age. It has been confirmed that the establishment of facilities such as ecological learning centers and seasonal environmental schools is the top priority among all age groups. Citizens are also aware of the importance of preserving and protecting the urban ecosystem and the need for education, but it is deemed necessary to supplement it because effective urban ecosystem conservation and protection plans and systematic education are not provided that citizens can sympathize with. In addition, it is deemed that various measures should be presented in selecting responsible organizations and educational media that host the education for effective education and promotion of urban ecosystem education according to conduct urban ecosystem education.