• 토지주택연구
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• 제11권2호
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• pp.59-68
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• 2020

Converting vacant lands for urban agriculture has become a popular topic for American cities to engage in on a program and policy level. The advocates of urban agriculture cite a number of potential benefits, ranging from promoting sustainable urban development, fostering social interaction and educational opportunities, regenerating neighborhoods, and empowering residents. With the emergence of vacant lands in South Korea, different strategies have been implemented for productive use. Nonetheless, less attention has been paid to reinvent vacant lands for urban agriculture. Therefore, this study has examined the case of the City of Milwaukee's vacant land initiatives and programs that were known to have brought a series of positive neighborhood revitalization outcomes. Compared to the case of Milwaukee, intensive land use and high property prices have turned to be the major actors that prevent an active use of vacant land for urban agriculture within the context of South Korean cities. Thus, this paper proposes the possibility of using vacant lands in apartment complexes for urban agriculture.

• 토지주택연구
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• 제11권1호
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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.

• 한국환경복원기술학회지
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• 제23권2호
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• pp.33-47
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• 2020

With population losses and stagnant or depressed economies, the local governments embrace shrinkage and accept having a significantly smaller population. Both the initial and ongoing causes of shrinkage hold dramatic effects on the city and its remaining residents. In this context, vacant land increases as an overabundance of unused infrastructure is demolished and municipalities become burdened with increasing maintenance costs of this land. The result is that vacant land often experiences minimal management relative to social norms and have chance to provide a setting for ecological processes with urban rightsizing strategy. Therefore, urban ecosystems undergo major shifts in structure and function. We need to better understand the possibilities of where and how much of houses and land will be abandoned to assist land planners and policymakers to mitigate conflict between optimal ecological and sociological outcomes. This article, therefore, aims to identify distributional characteristics of vacant houses and lands with case study of Mokpo. The study found and verified affecting factors of vacant houses and lands by type through the use of a Maxent model and spatial data that explained housing choice and preference theory. We can predict the vacancies with the spatial variables such as land price, the population ratio over 65, and the distance from security facility. Based on the analysis, the ways of managing housing and land vacancy for sustainable development and ecological restoration method are discussed.

• 한국지리정보학회지
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• 제19권4호
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• pp.1-16
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• 2016

우리나라는 2000년대 이후 급속한 경제성장 시대를 지나 보다 안정된 경제성장 시대에 접어들면서 국토와 도시의 발전형태도 변화하고 있다. 대규모 신개발의 필요성은 점차 감소하는 가운데 도시 외곽에서 파편화된 소규모 개발이 진행되는 한편, 기존 도시 내에서 유휴화 되는 공간이 증가하고 있다. 따라서 기존 도시의 압축적 이용을 위해 이러한 유휴공간에 대한 효율적 이용이 필요한 실정이다. 그러나 이를 위해서는 무엇보다 도시내부에 존재하는 다양한 유휴공간을 체계적으로 파악하고 관리할 수 있는 과학적 방법과 수단이 필요하다. 본 연구는 이와 같은 배경 하에 다음과 같은 목적을 가지고 수행하였다. 첫째, 유휴공간을 체계적으로 파악하기 위한 분석모형을 실험개발하고 부산시를 대상으로 실증연구를 수행하고자 한다. 둘째, 오픈소스 GIS 소프트웨어인 uDig을 활용하여 유휴공간 분석시스템을 실험 구축하고자 한다. 공간적 문제의 파악과 해결을 지원하기 위해 GIS기반의 공간의사결정지원체계나 계획지원체계를 구축하여 활용하는 것은 새로운 시도는 아니다. 그러나 최근 발전하고 있는 오픈소스 GIS를 활용할 경우 기존의 독점적 소프트웨어를 사용하는 것과는 차별화된 장점이 있다. 본 연구는 상기와 같은 내용을 기반으로 향후 국토도시에 존재하는 유휴공간을 체계적으로 파악하고 활용하기 위한 오픈소스 기반의 계획지원체계를 구축하는데 필요한 시사점을 제시하였다.

• 인간식물환경학회지
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• 제23권4호
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• pp.387-398
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• 2020

Background and objective: Land vacancy is a persistent issue in most urban areas in the United States, yet few case studies have examined how vacant lots are used and the functions they serve in local communities. The purposes of this study were to provide a new revitalization planning and design proposal for the Durant-Tuuri-Mott (DTM) target area in the shrinking city of Flint, MI, USA, and to assess the final planning and design guideline through an analysis of vacant land redevelopment alternatives. Methods: For developing a revitalization planning and design guideline, this study developed several design modules with three main design themes. Then, landscape performance of the final design proposals was analyzed by three development scenarios, based on implementation level: 100%, 75%, and 50%. These development scenarios were based on the local context and different implementation budgets needed to adopt the proposed design modules. To generate a comprehensive development plan by optimizing design module allocation in the study area, this research employed a system-oriented approach, analyzing the existing cultural, natural, and built environments. A community participant process was adopted to collect stakeholders' opinions on future development. Results: By utilizing landscape performance metrics to quantify the environmental, social, and economic benefits, this study developed optimized development scenarios and a master plan for the reuse and redevelopment of existing vacant lots across DTM neighborhoods and analyzed the benefits of each. Conclusion: This research offers a flexible design method for balancing objectives in vacant land redevelopment that can be applied in other shrinking cities.

• 농촌계획
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• 제13권1호
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• pp.19-31
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• 2007

The number of abandoned houses and vacant lots in rural villages is increasing continuously. They are a bad influence of the rural landscape and land use. They should be rehabilitated for efficient use of land and rural resources. The Space Syntax which is one of the tools of spatial structure analysis has been applied usefully at home and abroad in order to analyze quantitatively the spacial structure and to be clear logically the physical structure. The Space Syntax method was used in order to systematically analyze the spatial configurations and the location of abandoned houses and vacant lots on 22 rural villages. On the basis of integration and depth value this study classified low types which was provided for the characteristics of spatial structure and the location of abandoned houses and vacant lots of rural villages, and suggested practical applications for each type.

• 지역연구
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• 제32권1호
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• pp.105-122
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• 2016

본 연구의 목적은 서울 대도시권 내 이주자의 주거 입지 선택의 결정 요인을 분석하는 것이다. 따라서 2010 인구주택총조사의 자료를 이용하여 이산선택모형을 구축하였다. 연구범위로 지난 5년 동안의 지역 내 이동 가구를 네 집단으로 분류하였다: 1) 서울에서 경기, 인천지역으로 이주한 가구, 2) 경기, 인천지역에서 서울로 이주한 가구, 3) 서울 내 이주가구, 그리고 4) 경기, 인천지역 내 이주가구. 본 연구의 주요 분석결과를 요약하면 다음과 같다. 첫째, 서로 다른 집단 사이에서 주거 입지 선택 결정 요인의 중요한 차이점들이 확인되었다. 둘째, 경기, 인천지역에서 서울로 이주한 가구는 적은 방 수를 가진 작은 주택을 선택하는 경향이 나타났고, 이는 그들의 주거 선택이 자발적인 선택보다는 서울에서의 높은 주거비용 압박에 의해 비롯된 것을 의미한다. 셋째, 모든 집단은 지하철을 포함한 대중교통에 대한 좋은 접근환경에 높은 선호를 가진다. 마지막으로, 근린주구의 어메니티 요소가 주거 입지 선택에 역시 중요한 영향을 미치는 것으로 분석되었다.

• 한국IT서비스학회지
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• 제21권3호
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• pp.63-72
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• 2022

The extinction crisis of local cities, caused by a population density increase phenomenon in capital regions, directly causes the increase of vacant houses in local cities. According to population and housing census, Gunsan-si has continuously shown increasing trend of vacant houses during 2015 to 2019. In particular, since Gunsan-si is the city which suffers from doughnut effect and industrial decline, problems regrading to vacant house seems to exacerbate. This study aims to provide a foundation of a system which can predict and deal with the building that has high risk of becoming vacant house through implementing a data driven vacant house prediction machine learning model. Methodologically, this study analyzes three types of machine learning model by differing the data components. First model is trained based on building register, individual declared land value, house price and socioeconomic data and second model is trained with the same data as first model but with additional POI(Point of Interest) data. Finally, third model is trained with same data as the second model but with excluding water usage and electricity usage data. As a result, second model shows the best performance based on F1-score. Random Forest, Gradient Boosting Machine, XGBoost and LightGBM which are tree ensemble series, show the best performance as a whole. Additionally, the complexity of the model can be reduced through eliminating independent variables that have correlation coefficient between the variables and vacant house status lower than the 0.1 based on absolute value. Finally, this study suggests XGBoost and LightGBM based machine learning model, which can handle missing values, as final vacant house prediction model.

• 교육녹색환경연구
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• 제12권3호
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• pp.1-10
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• 2013

Due to the population decrease and urbanization process, a new round of rural primary and middle school pattern adjustment has been implemented since 2000. When the teaching quality is improved, a series of problems also occur, including the security of students, increasing burden on farmers, especially, abundant vacant schools have been produced due to the integration of schools. These schools have a great significance for the developing China. However, due to the problems in land ownership and property right of schools, the re-application rate of these vacant schools is quite low, and then how to improve the usage rate of vacant schools by combining with the new rural construction and urbanization has been the significant problem in the current study. In this paper, the causes, processes, results achieved and existing problems of primary and middle schools, as well as the amount of vacant schools have been explored in details, and then the current situation and existing problems have been discussed, hoping to provide certain reference for the government and researchers.

• 한국환경복원기술학회지
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• 제25권1호
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• pp.25-38
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• 2022

Urban problems are constantly occurring around the world due to rapid industrialization and population decline. In particular, as the number of vacant houses is gradually increasing as the population decreases, it is necessary to prepare countermeasures. A plan to utilize vacant houses has emerged to restore the natural environment of the urban ecosystem where forest destruction, damage to habitats of wild animals and plants, and disconnection have occurred due to large-scale development. Through connectivity analysis, it is possible to understand the overall ecosystem flow based on the movement of species and predict the effect when vacant houses are converted into green spaces. Therefore, this study analyzed the green area network to confirm the possibility of greening of vacant houses neglected in Jeonju based on circuit theory. Using Circuitscape and Least-cost path, we tried to identify the connectivity of green areas and propose an ecological axis based on the analysis. In order to apply the resistance values required for analysis based on previous studies, the 2020 subdivision land cover data were integrated into the major classification evaluation items. When the eight forests in the target site were analyzed as the standard, the overall connectivity and connectivity between forests in the area were high, so it is judged that the existing green areas can perform various functions, such as species movement and provision of habitats. Based on the results of the connectivity analysis, the importance of vacant houses was calculated and the top 20 vacant houses were identified, and it was confirmed that the higher the ranking, the more positive the degree of landscape connectivity was when converted to green areas. In addition, it was confirmed that the results of analyzing the least-cost path based on the resistance values such as connectivity analysis and the existing conceptual map showed some differences when comparing the ecological axes in the form. As a result of checking the vacant houses corresponding to the relevant axis based on the width standards of the main and sub-green areas, a total of 30 vacant houses were included in the 200m width and 6 vacant houses in the 80m width. It is judged that the conversion of vacant houses to green space can contribute to biodiversity conservation as well as connectivity between habitats of species as it is coupled with improved green space connectivity. In addition, it is expected to help solve the problem of vacant houses in the future by showing the possibility of using vacant houses.