• Title/Summary/Keyword: urban studies

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Identification of key elements for stable flight of drones and horizontal space compartment in urban area (드론의 안정적 비행을 위한 핵심요소와 도시 수평 공간 구획)

  • Kim, Jung-Hoon;Kim, Hong-Bae
    • Journal of Korea Planning Association
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    • v.53 no.7
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    • pp.39-48
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    • 2018
  • The purpose of this study is to verify the stable flight conditions of drones within a limited urban area by using the ICAO(International Civil Aviation Organization) reich model which is using to evaluate civil aircraft stability. The results of the study are summarized as follows. First, in order for the drones flying stably, the horizontal safety separation distance between a drone and another should be at least 1,852M. Second, assuming that no obstacles within 1,852M of horizontal space, two drones can be fly into upper and lower spaces. However there are obstacles such as buildings, it is impossible to secure a 1,852M distance between drones. Third, sensitivity analysis point out that the separation interval($s_x$) of drone aviation has the greatest influence on the TLS(Target Level of Safety). If future research is conducted to lower the numerical values, the safety distance between a drone and another drone will be drastically reduced, allowing more detailed urban space division, and will be presented as a scientific numerical value for establishing a dedicated path for the drones.

The Effect of Urban and Climate Characteristics on Energy Resilience - Focusing on Blackout Time - (도시 및 기후특성이 에너지 회복력에 미치는 영향 - 정전발생시간을 중심으로 -)

  • Lee, DongSung;Moon, Tae-Hoon
    • Journal of Korea Planning Association
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    • v.54 no.4
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    • pp.122-130
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    • 2019
  • The purpose of this study is to analyze effect of climate and urban factors on energy resilience, and to explore policy alternatives to strengthen resilience of energy system. For this purpose, this study used extensive literature review on resilience studies and multiple regression analysis. In this study, blackout time was set as a dependent variable. And the independent variables were divided into climate and urban (robustness, countermeasure capacity) characteristics. As a result of the analysis, in terms of climate characteristics, maximum wind speed and cooling/heating degree-day have statistically significant impact on blackout time. With regard to urban characteristics, number of consumer, ratio of deteriorated housing and coast dummy variables have statistically significant impact on blackout time. And the ratio of government employees and road ratio were found to be the most influencing factors to shorten time taken to restore original level of electricity supply. Based on the study results, several policy suggestions to improve energy resilience were made such as continuous management of vulnerable areas and strengthening disaster response services. This study only considered engineering dimension of resilience. Further studies need to be approached on ecological & social-ecological dimension.

A Study on the System Improvement Plan for Urban Regeneration of Historical and Cultural Environment - Focusing on the case of Hwangnam and Inwang Hanok district in Gyeongju - (역사문화환경의 도시적 재생을 위한 제도개선방안 연구 - 경주 황남·인왕 한옥지구 사례를 중심으로 -)

  • Kim, Nam-Hee;Lee, Hee-Chung
    • Journal of architectural history
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    • v.30 no.4
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    • pp.91-102
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    • 2021
  • This study is a case study of system improvement measures for urban regeneration of the historical and cultural environment. The example areas are Hwangnam and Inwang Hanok districts in Gyeongju City, which operate various systems to solve the urban decline problem caused by the historical and cultural environment regulations. The subjects of this study are resident support programs and district unit planning systems under the advanced promotion system established in the case area. As research methods, literature studies, field surveys, and in-depth interviews were conducted. Through this, the background and purpose of introduction of each system, major plan contents, and problems of the system application process were analyzed. This study drew the following implications through case studies. First, in order to more effectively promote the urban regeneration of the historical and cultural environment, it is necessary to improve the related systems in an integrated and systematic manner. Second, in order to resolve the policy distrust of local residents in the historical, cultural and environmental management system, a wider variety of planned alternatives to narrow the difference in interests between the public and private sectors should be presented.

Effect of Gardening as a physical activity on the improvement of Blood lipoprotein profile in an urban population in Republic of Korea: A pilot study

  • Jang, TaeSu;Lee, Ae-Kyung;Park, EunJi;Kim, Jae Kyung
    • International journal of advanced smart convergence
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    • v.11 no.3
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    • pp.170-178
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    • 2022
  • Purpose: Gardening has been reported to have positive emotional and physical effects in older adults. However, limited studies have assessed this relationship in Korea. Therefore, in this pilot study of densely populated urban dwellers, we aimed to investigate whether temporary but repeated experiences of the natural environment could positively change metabolism-related blood indicators. Methods: This study used pre- and post-interventional designs to investigate the effects of 16 weeks of gardening on lipid profiles in an urban adult population and investigate their relationships. This study was conducted 30 times at the H Botanical Garden in Yongin City from August 16, 2021 to November 30, 2021 (16 weeks, twice a week, 3 hours each time). Before and after the gardening program, a clinical pathologist collected blood samples from the participants. Results: High-density lipoprotein levels increased, low-density lipoprotein levels decreased, and total cholesterol levels decreased after the gardening activity. Conclusions: Our findings suggest that gardening has potential for clinical application as it has good control over the lipid profile through physical activity. These findings can be used as basic data for studying the relationship between urban populations and their living environment and for various studies in the future as experiencing the natural environment provides many health benefits.

Structural analysis of Deactivation Factors behind Urban-Rural Exchange using DEMATEL method (DEMATEL기법을 활용한 도농교류 비활성화 요인 구조화 분석)

  • Kim, Soo-Jin;Bae, Seung-Jong;Kim, Dae-Sik
    • Journal of Korean Society of Rural Planning
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    • v.28 no.1
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    • pp.89-98
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    • 2022
  • This study was attempted to analyze the causal relationship on the factors influencing the inactivation of urban-rural exchanges. 33 previous studies related to urban-rural exchange in Korea were investigated, and 27 factors were derived in 4 sectors (resources and facilities, contents and programs, human resources and management, legal system and support) by deriving, rearranging, and classifying various influencing factors suggested in previous studies. Based on the derived influencing factors, an expert survey was conducted, and the causal relationship between factors was structured through the DEMATEL method. As a result of the analysis, 'human resources and management' was the factors with the highest prominence and 'legal system and support' was analyzed as factors with a very strong dispatcher character, and other factors were analyzed as having a receiver character. This study is meaningful in that it provided basic information for establishing related policies by structurally analyzing and presenting the necessary influencing factors when implementing an efficient urban-rural exchange project despite several limitations.

Application and Usability Analysis of Local Climate Zone using Land-Use/Land-Cover(LULC) Data (토지이용/피복(LULC) 데이터를 이용한 도시기후구역의 적용가능성 분석)

  • Seung-Won KANG;Han-Sol MUN;Hye-Min PARK;Ju-Chul JUNG
    • Journal of the Korean Association of Geographic Information Studies
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    • v.26 no.1
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    • pp.69-88
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    • 2023
  • Efficient spatial planning is one of the necessary factors to successfully respond to climate change. And researchers often use LULC(Land-Use/Cover) data to conduct land use and spatial planning research. However, LULC data has a limited number of grades related to urban surface, so each different urban structure appearing in several cities is not easily analyzed with existing land cover products. This limitation of land cover data seems to be overcome through LCZ(Local Climate Zone) data used in the urban heat island field. Therefore, this study aims to first discuss whether LCZ data can be applied not only to urban heat island fields but also to other fields, and secondly, whether LCZ data still have problems with existing LULC data. Research methodology is largely divided into two categories. First, through literature review, studies in the fields of climate, land use, and urban spatial structure related to LCZ are synthesized to analyze what research LCZ data is currently being used, and how it can be applied and utilized in the fields of land use and urban spatial structure. Next, the GIS spatial analysis methodology is used to analyze whether LCZ still has several errors that are found in the LULC.

A Study on the Technical Method for Urban Scenic Quality Map - Focused on Urban District Area - (도시 경관도 작성 기법 연구 - 시가화 지역을 중심으로 -)

  • Kim, Dae-Hyun;Kim, Dae-Soo;Joo, Shin-Ha;Oh, Se-Rae
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.10 no.1
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    • pp.23-35
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    • 2007
  • Nowadays, as a result of increasing income and spare time, the social demands for better living environment become more increasing. Above all, landscape improvement, the essential part of physical environment, will be a more important subject in urban planning. In these circumstances, classification of urban scenic quality is required for urban landscape development programs. The major purpose of this study is to suggest a technical method of designing urban scenic quality map for urban district area based on the scenery management system of the USDA forest service and literature studies. As a conclusion of this study, four steps are desirable for the technical method for designing a scenic quality map of urban districts areas : 1) Define a landscape unit on the map, 2) Take a photograph of these landscape unit on site, 3) Evaluate the landscape unit by semantic differential scale with landscape adjectives, and 4) Draw the scenic quality map, investigate the landscape characteristics and suggest the landscape scenic development plans.

Place Values of Urban Agriculture through applying the Concept of Creative Industry Convergence (창조적 산업융합 개념을 적용한 도시농업의 장소적 가치에 대한 고찰)

  • Lee, Seok-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.2
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    • pp.900-905
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    • 2012
  • The researches and discussion for regenerating the deprived urban residential areas are proceeding actively. But urban agriculture is regard as a simple tool for participation of resident and its value as primary industry is discussed in part. Now discussion about increasing the place capital is needed to overcome the existing urban development methods that maximizes the space capital as a new alternative. So this research is to give a theoretical basis for sustainable urban regeneration. It studies the place value improvement through urban agriculture which is applied creative industry convergence. For these, it indicates problems of the methods of existing urban development, reveal the strengths of urban agriculture applied creative industry convergence in the aspect of place value improvement, and suggests a new paradigm for urban regeneration.

A Study of Collaboration between GIS and Census Data for Urban Analysis and Location Analysis (도시현황분석과 시설물 입지분석의 과학화를 위한 센서스와 GIS의 연계 활용방안 연구)

  • Koo, Chamun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.3 no.3
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    • pp.31-44
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    • 2000
  • The purpose of this study is to show how could GIS along with digital maps and census data be used for scientific urban analysis and location analysis for a proposed project. Results are summarized as follows. First. after digital maps being completed, the census tract system being adopted, and major urban data being inputted in the computer file, GIS could be used intensively for various reliable urban analysis. With graphic statistical, and overlay functions of GIS, various physical and socio-economic characteristics of urban areas could be presented for analysis in the form of thematic and datapoint maps on the computer screen. Second, the locational analysis for a proposed project is a major part in the building permit review process, which tends to become disputable and time consuming as society become pluralized. Along with various GIS functions scientific decision-making methods could be developed, and the methods could play an important role for faster and scientific location analysis. As such, GIS would play an important role for faster and reliable urban analysis and location analysis and these functions finally would play important roles to improve public services and administration of local governments.

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A Study on the Urban Growth Patterns Focusing on Regional Characteristics (지역적 특성을 고려한 도시 성장 패턴에 관한 연구)

  • Yun, Jeong-Mi;Lee, Sung-Ho
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.1
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    • pp.116-126
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    • 2006
  • The purpose of this study is to analyze the growing course of Busan, Gimhae and Jinhae and further find patterns of the urban growth. This study shows that patterns of the urban growth differ from city to city, being influenced by the city's characteristics. Acknowledging this fact would help the decision maker to determine the developing plan of the urban. The methodology for this study is as follows; Fuzzy set concept is applied to minimize the data loss. At the same time, the AHP is used to give a relative weight to each factor. In order to be able to manage the change based on the dynamic model and time, Cellular Automata is introduced to simulate the growth of urban. The results show that the pattern of Gimhae's and Jinhae's growth is the same, whereas that of Busan is different from them. That is to say, each city has regional characteristics. And the pattern of the urban growth is influenced by the regional conditions of the city.

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