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Jeong, Yunnam,Lee, Gunwon,Kim, Seiyong Architectural Institute of Japan 2015 JOURNAL OF ASIAN ARCHITECTURE AND BUILDING ENGINEE Vol.14 No.1
<P> This study aims at offering effective policies for managing local temperatures and reducing the heat island effect by identifying elements that affect local temperatures. It first selected the three elements of natural environment, land use, and land coverage and then applied control factors including season, weather, and measurement unit for wind speed. In order to analyze these factors′ relation to summer temperatures, development of an integrated model, analysis of the urban heat island reduction effect of elements impacting local temperatures, nationwide Weather System (AWS) data from July and August 2007, land coverage data provided by the Ministry of Environment, and land use area data from local governments were used after being rearranged based upon their falling within a 500 meter radius (0.79km<SUP>2</SUP>) of respective AWS measuring points. The study results show that natural environment, land use, and land coverage all have a relation to changes in local temperatures, with natural elements bearing a greater impact than other factors and land use having less. Specific elements which were effective in the reduction of local temperatures were altitude, wind speed, broadleaf forest, inland wetland, costal wetland, other dry land, and marine water. On the other hand, residential areas, traffic areas, and greenhouse agricultural areas all contributed to an increase in local temperatures. In the case of grassland, contrary to previous theories, its effect on the reduction of temperatures was seen to be a result of wind rather than an inherent property. Unlike its precedents, this study compared the degree of influence of each element on local temperatures. In this regard, it is meaningful in that it suggests basic data for establishing more effective policies for mitigating the heat island effect and strategies for enhancing the sustainability of cities. </P>
건조환경의 쾌적성과 미기후가 도시공간의 외부활동 지속에 미치는 영향 분석
정윤남(Yunnam Jeong),이건원(Gunwon Lee) 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.5
본 연구는 물리환경 및 미기후, 쾌적성이 외부활동 지속에 미치는 영향 도출을 목적으로 한다. 본 연구에서는 외부활동 지속에 영향을 미치는 요소로 도시 내 물리환경, 물리환경에 대해 외부공간 활동자가 느끼는 쾌적성, 미기후, 미기후에 대해 외부공간 활동자가 느끼는 쾌적성 등을 중심으로 접근했다. 이에 대한 분석을 위해서 2017년 중 봄, 여름, 겨울과 같이 세 계절에 대해서 외부공간 활동자가 느끼는 다양한 쾌적도에 대한 설문조사를 수행하였다. 설문조사 응답자가 설문조사에 응답하고 있는 동안에 주변 장소의 미기후에 대한 측정을 실시하였다. 이렇게 구축된 자료를 이용하여 효과적인 분석수행을 위해서 로짓회귀분석을 이용하였다. 분석결과, 물리환경 쾌적성의 용이성 및 안전성과 기후환경 쾌적성의 온도, 바람, 일사량 쾌적성 등은 외부공간의 활동 지속도와 유의미한 관계를 맺고 있었다. 머물기 및 대화 행위 보다는 걷기와 쇼핑 행위가 물리적 환경 및 기후환경에 보다 예민하게 영향을 받는 요소임을 도출했다. This study aimed to examine the influence of physical environment, microclimate, and comfort on sustaining outdoor activities. This study has identified the main factors that influence sustaining outdoor activities as physical environment, comfort in the physical environment, microclimate and microclimate comfort. For analysis, the study conducted the investigation on pedestrian walkability during spring, summer and winter of the year 2017. The microclimate levels were also recorded at the same time. The method of logit regression analysis was used to analyze these outcomes. The result showed that the comfort and safety of the physical environment as well as the ideal climatic conditions, in terms of temperature, wind level, and solar insolation, were related to sustaining outdoor activities. Also, walking and shopping in the physical and climatic environment were the factors that were found to be more influenced than the act of remaining in a place and forming conversations.
Lee, Gunwon,Jeong, Yunnam,Kim, Seiyong Architectural Institute of Japan 2015 JOURNAL OF ASIAN ARCHITECTURE AND BUILDING ENGINEE Vol.14 No.2
<P> This study is aimed at establishing a correlation between microscopic factors and pedestrian volume in the urban environment, focusing on microscopic factors that stimulate pedestrian volume, such as density, diversity, network structure, accessibility, the form of lots and buildings, and the form of building facades. In particular, factors already known to boost pedestrian volume include density, diversity and accessibility, which are three variables highly related to the concept of 3Ds (Density, Diversity, Design) proposed by Cervero and Kockelman (1997) and the additional 2Ds (Distance to Transit, Destination Accessibility) suggested by Ewing et al. (2008). The analysis in this study is based on the 2010 survey of the floating population in Seoul, particularly on the data from Seocho-gu in the Gangnam area. Data was established by analyzing microscopic factors within the 500m radius around each of the 616 spots from which the pedestrian volume in Seocho-gu was measured. This study compared and analyzed two methods: OLS, which is featured in multiple studies of pedestrian volume, and Poisson Regression, which is the most common statistical analysis method of abnormal count data such as pedestrian volume. The analysis results showed that density, diversity and accessibility, three factors that were already known to be effective in increasing pedestrian volume, also proved to have the same effect in the Gangnam area. Moreover, the form of the ground level and facade of buildings were found to have a significant effect on pedestrian volume. These findings are expected to serve as basic data for the development of sustainable and resilient cities through higher pedestrian volume. </P>
이건원(Lee, Gunwon),정윤남(Jeong, Yunnam),지성균(Ji, Seongkyun),김세용(Kim, Seiyong) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.2
본 연구는 여러 분야에서 널리 활용되고 있는 생태면적률 제도 보완을 목적으로 한다. 최근 도시농업에 대한 수요가 증가하고 있는 추세이며, 많은 공동주택단지에서 주민들이 텃밭을 일구고 있지만 이에 대한 건축 및 도시계획적 대응 은 부족한 상황이다. 이러한 점에서 본 연구는 이미 널리 활용 중인 생태면적률 제도를 활용하여, 이러한 도시농업에 대한 수요 에 대응하는 것이 효과적이라고 생각한다. 다만, 생태면적률 제도는 작물이 아닌 초목 만을 고려한 것으로 작물재배를 위해서 는 한계가 분명하다. 이러한 점에서 본 연구는 생태면적률 제도를 보다 확장하여 작물생장 성능까지 담을 수 있는 방안을 모색하고자 했다. 이를 위해서 기존의 생태면적률의 요소에 일조, 간격, 면적, 토심이라는 요소를 더 추가하여 생태면적률의 보완가능성을 분석했다. 본 연구는 기존의 생태면적률 제도를 보완하여 최근의 도시농업의 수요에 대응할 수 있는 방안을 제안했다는 점에서 의미를 지닌다 The purpose of this study is to improve Biotope Area Ratio(BAR) systems used in the various fields. Recently, there has been increasing demand in urban agriculture as well as more residents cultivating farms on a small scale. However, there are few measures in terms of architecture and urban planning to respond to this trend. In this sense, this research is effective as it can respond to these demands by using BAR systems. Yet, the environmental indexes are not enough since BAR systems only take account of vegetation. Therefore, this study proposes an alternative way that includes the capacity factor of the plant growth by expanding the existing BAR systems. Thus, the study analyzes the complementary possibility of BAR systems, including elements of daylight, planting interval, area and soil depth with existing BAR elements.