• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.465-465
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• 2021

2019년 도시계획현황 통계에 따르면 우리나라 국민의 90% 이상이 도시에 거주하고 있는 것으로 나타났다. 도시의 인구증가는 불투수면적 증가, 표면유출 증가, 침투량감소 등 도시 물순환의 왜곡을 발생시키며 건전한 물순환을 저해시키는 원인이 되고 있다. 본 연구에서는 이러한 도시 물순환을 저해시키는 요인을 평가할 수 있는 지표를 개발하기 위하여 물순환 관련법, 물순환 및 물관리를 위한 조례, 국내외 연구 사례를 조사하였으며 국내에서 수행된 다양한 지표 연구결과물을 분석하였다. 물순환 지표를 특정할 수 있는 6개의 키워드를 선정하여 105건의 논문 및 보고서를 검토하였으며, 최종적으로 49건을 선정하였다. 선정된 문헌별 지표를 수요·공급, 이수·치수, 수질·생태로 구분하여 정보를 분리화 한 후 분리된 정보를 유사한 지표별로 통합하여 세부지표를 도출하였다.

• Korean Institute of Interior Design Journal
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• v.24 no.2
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• pp.197-205
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• 2015

Recently in most homes, children are mostly cared in early childhood education facilities. However, the increased number of safety accidents on children cared in such facilities has become a social issue. For that, the purpose of this study is to suggest interior environmental planning elements to improve safety level of early childhood education facilities. This study was carried out by performing literature review analysis and survey. First, in total of 42 environmental planning elements that can be applied domestically were derived from analyzing safety related guidelines for children facilities located both domestically and internationally then a survey was carried out targeted for teachers and staffs in the facilities on importance of the factors. The results of this study are as followings. First, it is required to intensify the level of safety related training for teachers and staffs in the facilities including better treatment for them. Second, the necessity of safety environment by each space in such facilities is required to be approached upon the level of child activities. Third, facilities planning and finalizing planning are important for improving safety of early childhood education facilities. Forth, from factor analysis on the extracted environmental planning elements that are considered as important by the teachers from both day care centers and kindergartens, they were categorized in 5 groups including 'collision and fall prevention plan', 'physical characteristic consideration plan', 'evacuation safety plan', 'lock security plan' and 'outer control plan'. It is fair to say that constructing a better safety environment for children can be achieved by the environmental planning factors by this study.

• Journal of Korea Planning Association
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• v.53 no.6
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• pp.39-59
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• 2018

This study examines the relationship between the usage of public bike and physical environment factors around the public bike stations using the public bike rental history data from 2016 to 2017 in Seoul, Korea. Focusing on the different influences of determinant factors by distance to public bike station, this study identifies influential factors that affect the usage of public bike. The results of the analysis are as follows. First, both the land use and physical environmental variables of bike station areas show strong associations with the usage of public bike. Second, the usage of public bike is also associated with neighborhood living facilities, business facilities, land use mix, the distance to subway station, public facilities and universities. This finding indicates that public bike has played a role as a transportation mode for the short-distance travel and commuting purposes in everyday life. Third, this study shows that the usage of public bike is strongly associated with the average slope, traffic volume around public bike stations, distance to streams or rivers, and the types of bike lane. This finding also indicates that surrounding environmental factors play an important role in the usage of public bike. Finally, this study identifies the different influences of determinant factors on the usage of public bike by distance to public bike station. This study suggests policy implications for the potential locations of public bike stations in the future.

• Journal of Korean Society of Environmental Engineers
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• v.35 no.5
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• pp.321-333
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• 2013

As environmental sustainability becomes a key consideration in policy-making, more responsible consumption and utilization in daily life concern both health and quality of life. To address inequities in health in relation to environments, waste management has taken more progressive ways, and one of them is biomass-to-energy conversion that utilizes energy recovery from food waste. By extension, a food waste zero-emission system using fermentation and extinction technology gains much attention, so that this study is designed to examine residents' attitudes toward recycling food waste produced at home and toward food waste zero-emission system. Utilizing a survey questionnaire, this research collected data from 400 individual units of multifamily housing estates nationwide, and the data were analyzed using descriptive and inferential statistics. The findings indicate that food waste generated at home was highly water-contained and produced in the stage of food preparation before cooking while respondents viewed that food waste collection and treatment needed to be improved. It's noted that respondents strongly supported the use of food waste as a energy source and would have the use of the food waste zero-emission system built in kitchen sink. Regression analysis showed that educational attainment of housewives, cooking style, and planning food purchase were statistically significant factors in the attitude of the responded residents toward recycling food waste while none of the factors were in the attitude toward the food waste zero-emission system.

• Journal of the Economic Geographical Society of Korea
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• v.26 no.2
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• pp.123-136
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• 2023

Upon examining land prices in the eastern district of Gyeongseong, it was observed that there were variations in land prices between the northern and southern areas, with the central part being densely populated with modern facilities such as hospitals, schools, and research institutions. As a result, the eastern district of Gyeongseong was further divided into specific sub-areas, namely the northeastern and southeastern, for a more detailed analysis of the land market in each area. In the northeastern area, factors such as distance from the central area and proximity to planned roads were found to have an impact on land prices. On the other hand, in the southeastern area, the distance between the main road, whice were IHyun Road and Jongro, was identified as a significant influencer of land prices. Therefore, the northeastern area exhibited characteristics of a hinterland, influenced by the concentration of major facilities in the central area, while the southeastern area had a strong commercial orientation, largely shaped by the influence of Jongro as a bustling commercial district. This study is significant in that it sheds light on certain aspects of the modern land market by demonstrating that factors such as accessibility to roads and anchor facilities, as well as the segmentation of the land market, were also influential in the land market a century ago.

• Journal of Korea Planning Association
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• v.53 no.7
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• pp.49-66
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• 2018

The purpose of this study is to analyze neighborhood environmental factors affecting bicycle accidents and accidental severity in Seoul, Korea. The use of bicycles has increased rapidly as daily transportation means in recent years. As a result, bicycle accidents are also steadily increasing. Using Traffic Accident Analysis System (TAAS) data from 2015 to 2017, this study uses negative binomial regression analysis to identify neighborhood environmental factors affecting bicycle accidents and accidential severity. The main results are as follows. First, bicycle accidents are more likely to occur in commercial and mixed land use areas where pedestrians, bicycle and vehicles are moving together. Second, bicycle accidents are positively associated with road structures such as four-way intersection. In contrast, three-way intersection is negatively associated with serious bicycle accidents. The density of speed hump or street tree is negatively associated with bicycle accidents and accidential severity. This finding indicates the effect of speed limit or street trees on bicycle safety. Fourth, bicycle infrastructures are also important factors affecting bicycle accidents and accidential severity. Bicycle-exclusive roads or bicycle-pedestrian mixed roads are positively associated with bicycle accidents and accidential severity. Finally, this study suggests policy implications to improve bicycle safety.

• Journal of Korea Planning Association
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• v.54 no.3
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• pp.49-62
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• 2019

In order to balance with supply policy, public housing management and operation policies have been implemented in terms of housing welfare, but citizens have not yet achieved the results that the citizens are experiencing. The purpose of this study is to analysis the residential satisfaction of the including the housing performance through the characteristics of the public housing residents in Seoul. The data used in this study is based on the survey data of public housing panel survey in Seoul (2016). The study method used ordered logistic regression analysis based on the fact that dependent variables appeared as ordered responses. Major research results are as follows. Firstly, housing performance and residential satisfaction may not match. Even though the satisfaction of housing area, type, and management fee is high, satisfaction with residential environment is low if commuting distance, the number of small libraries, and hospitals are small. Secondly, it showed different characteristics of residential environment factors among types of public housing. Rather than focusing on supply, customized supply is needed considering characteristics of public housing types. Thirdly, the policy for public housing needs to be realized by a fair policy on the residential environment. It is necessary to contribute to better housing stability as a customized policy considering the local residential environment.

• Journal of Korean Society of Rural Planning
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• v.28 no.4
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• pp.1-9
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• 2022

Rural decline due to the decrease of the local population is an inevitable phenomenon, and a vicious cycle has been formed between a lack of basic living services and a population decrease in rural areas. Therefore, the study aims to derive the migration decision-making characteristics based on basic living service infrastructure data in rural areas. To do this, the population change over the past 20 years was categorized into six types, and the relationship between the classified population change types and the number of basic living service infrastructures was analyzed using decision tree analysis. Of the total 3,501 regions, 801 regions were the continuous decline type, of which 740 were rural areas. On the other hand, among 569 regions that were the continuous increase type, 401 regions were urban areas, confirming the population imbalance between rural and urban areas. As a result of the decision tree analysis on the relationship between population change types and the distribution of basic living service infrastructure, the number of daycare centers was derived as an important variable to classify the continuous increase type. Hospitals, parks, and public transportation were also found to be major basic living services affecting the classification of population change types.

• Journal of Korea Planning Association
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• v.54 no.3
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• pp.133-147
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• 2019

This study examined the effect of homeownership and homeownership desirability on residential satisfaction. By using the '2016 Korea Housing Survey', we categorized households into four types: 1) those who own a home with homeownership desirability; 2) those who own a home without homeownership desirability; 3) those who do not own a home with homeownership desirability; and 4) those who do not own a home without homeownership desirability. The study area is the whole country and the sample size is 19,219. By running t-test analyses and multiple regression analyses, we found that the level of residential satisfaction and the influences of factors affecting residential satisfaction differ among the four types. In particular, the results shows that homeownership desirability can lead to differences in factors affecting residential satisfaction. This study is limited by not analyzing homeownership desirability more systemically and not using physical data for residential environment. Nevertheless, this study provides insights on designing housing policy to consider homeownership desirability.

• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.599-604
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• 2005

최근 일부 댐유역에서 게릴라성 집중호우와 태풍 등과 같은 특이 호우에 대하여 강우-유출분석을 실시한 결과 유출율이 $100\%$를 상회하는 경우가 발생함에 따라 효율적이고 안전한 치수 및 방재업무를 실시하는데 많은 어려움을 겪고 있다. 본 연구에서 일부 댐유역의 유출율이 $100\%$를 상회하는 원인으로 강우 관측자료의 신뢰성이 결여되어 나타나는 것으로 보았으며, 만일, 강우관측소에서 계측된 강우자료의 신뢰성이 결여 되어 있다면, 이로 인한 유역 강우의 추정오차는 제거될 수 없을 것이다. 일반적으로 강우관측소에서 발생하는 계측오차는 관측소의 고도, 지형적인 장애(산악영향, 지장물 등) 및 기상학적인 장애(기단의 이동방향, 호우의 발생원인, 돌풍 등) 등 외부적인 요인으로 인해 발생할 수 있다. 따라서, 본 연구에서는 강우관측소에서 발생하는 계측오차의 다른 여러 외부적 요인들 중 가장 큰 요인으로 돌풍과 같은 풍속에 의해 발생하는 것으로 판단하였고, 연구대상 유역인 임하댐 유역의 유출율과 치대 풍속간의 상관분석을 실시하였으며 분석결과 유출율은 최대 풍속에 커다란 영향을 받는 것으로 나타났다. 결국, 유출율이 $100\%$를 상회하는 호우에서 강우관측소의 강우는 강우시 돌풍과 같은 외부적인 요인으로 인해 적게 관측된 것으로 추정되며 저평가된 강우자료로부터 산정된 면적평균강우의 추정오차로 인해 유출율이 $100\%$를 상회하는 것으로 나타났다. 따라서 본 연구에서는 유출율과 풍속간의 관계로부터 강우보정계수 추정식을 산정하였으며, 추정된 보정계수를 이용하여 관측된 강우자료를 보정한 후 강우-유출분석을 실시한 결과 댐유입수문곡선을 보정전에 비해 보다 근사하게 모의하였다. 위해서는 대상유역에 적합한 선행 강우일수의 결정이 중요하리라 판단된다.인 분석을 수행하고, 배수갑문 개방에 의한 수질개선효과를 최대화하기 위한 환경관리 방안 제시에 중점을 두어 수행하였다.ncy), 환경성(environmental feasibility) 등을 정성적으로(qualitatively) 파악하여 실현가능한 대안을 선정하였다. 이렇게 선정된 대안들은 중유역별로 검토하여 효과가 있을 것으로 판단되는 대안들을 제시하는 예비타당성(Prefeasibility) 계획을 수립하였다. 이렇게 제시된 계획은 향후 과학적인 분석(세부평가방법)을 통해 대안을 평가하고 구체적인 타당성(feasibility) 계획을 수립하는데 토대가 될 것이다.{0.11R(mm)}(r^2=0.69)$로 나타났다. 이는 토양의 투수특성에 따라 강우량 증가에 비례하여 점증하는 침투수와 구분되는 현상이었다. 경사와 토양이 같은 조건에서 나지의 경우 역시 $Ro_{B10}(mm)=20.3e^{0.08R(mm)(r^2=0.84)$로 지수적으로 증가하는 경향을 나타내었다. 유거수량은 토성별로 양토를 1.0으로 기준할 때 사양토가 0.86으로 가장 작았고, 식양토 1.09, 식토 1.15로 평가되어 침투수에 비해 토성별 차이가 크게 나타났다. 이는 토성이 세립질일 수록 유거수의 저항이 작기 때문으로 생각된다. 경사에 따라서는 경사도가 증가할수록 증가하였으며 $10\% 경사일 때를 기준으로 $Ro(mm)=Ro_{10}{\times}0.797{\times}e^{-0.021s(\%)}$로 나타났다.천성 승모판 폐쇄 부전등을 초래하는 심각한 선천성 심질환이다. 그러나 진단 즉시 직접 좌관상동맥-대동맥 이식술로 수술적 교정을 해줌으로