• Title/Summary/Keyword: street research

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Verification of Computational Fluid Dynamics Model Using Observation Data in Artificial Street Canyon (인공 도로협곡 관측 자료를 활용한 전산유체역학모델 검증)

  • Kim, Do-Hyoung;Hong, Seon-Ok;Lee, Dae-Geun;Lee, Young-Gon;Kim, Baek-Jo
    • Atmosphere
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    • v.26 no.3
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    • pp.423-433
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    • 2016
  • In this study, performance of a computational fluid dynamics (CFD) model is assessed from analysis on air flow pattern which is observed in the artificial street canyon. Field observations focusing on flows were conducted at an artificial street canyon in Magok region. For the observation of three-dimensional airflow structures, twelve three-dimensional wind anemometers (hereafter, CSAT3) were installed inside the street canyon. The street canyon was composed of two rectangular buildings with 35-m length, 4-m width, and 7-m height. The street width (distance between the buildings) is 7 m, making the street aspect ratio (defined by the ratio of building height to street width) of 1. For the observation of above-building wind, a CSAT3 was installed above the northwest-side building. Southwesterly, westerly and northwesterly were dominant in the street canyon during the observations. Because wind direction is parallel to the street canyon in the southwesterly case, westerly and northwesterly were selected as inflow directions in numerical simulations using a computational fluid dynamics model developed through the collaborative research project between National Institute of Meteorological Sciences and Seoul National University (CFD_NIMR_SNU). The observations showed that a well-structured vortex flow (skimming flow) and an evidence of a small eddy at the corner of the downwind building and ground appeared. The CFD_NIMR_SNU reproduced both the observed flow patterns reasonably well, although wind speeds inside the street canyon were underestimated.

Change of Japanese Street Fashion after the Second World War (일본의 전후 스트리트 패션의 변화)

  • Lee, Kyung-Hee
    • Fashion & Textile Research Journal
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    • v.10 no.1
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    • pp.30-39
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    • 2008
  • This research investigated the change of Japanese Street Fashion after the Second World War. The change were categorized into 5 terms from the late 1940s to 2000s. The first term was from the late 1940s to 1950s, when street fashion was born. The second term was from the 1960s to 1970s and counter culture of street fashion appeared. The third term was the 1980s, during which street fashion fluctuated. The forth term was the 1990s, a period of chaos in street fashion. The fifth term was after 2000 and it was a retroaction term of street fashion. Japanese street fashion was influenced by fashion magazines in those days. Various street fashions in Japan based on special society and cultural situation accomplished Japanese basic fashion quality and influenced world fashion.

A Study on the revitalization of a Cultural Street (문화의 거리 활성화 방안에 관한 연구-대전시 으능정이 거리를 대상으로)

  • Sim, Jun-Young;Lee, Si-Young
    • The Journal of Natural Sciences
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    • v.16 no.1
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    • pp.87-109
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    • 2005
  • This study aims to evaluate the cultural street and to find ways to revitalize a culture street. To achieve this, the study relied on empirical study method and the descriptive method; additionally, present condition survey was performed with a user interview. As a result, the item of 'night visit' shows the highest mean and the item of 'convenience of walking' follows. It means that this street has such a good condition in the convenience and accessibility of physical environment that it gives pedestrians pleasure like night activity and satisfying their curiosity. 5 lowest items of inquiry, however, are all about regional history and origin. It means that this cultural street did not reflect the history and embody the original form of the street. Also, this study proposes 4 type of street; a street with contents, a street with sequence, a street for pedestrians, and a street with identity.

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A study on improvement method of historic cultural street. - Focusing on DongChun-Dang street - (역사문화가로 활성화 방법에 대한 고찰 - 대전광역시 대덕구 동춘당 가로를 실제사례로 하여 -)

  • Yoon, Hwon;Kim, Duk-Su;Kill, Seong-Ho
    • Journal of The Korean Digital Architecture Interior Association
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    • v.8 no.1
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    • pp.23-30
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    • 2008
  • In order to improve the atmosphere within Historic and Culturally Symbolic Street- DongChun-Dang street which represents the historical characteristics of Daejeon- this study aims to derive improvement methods by analyzing preceding studies, identify problems and offer the directions that could make historic cultural street, and propose the guidelines could apply to new district development at historic cultural area. The research results are as follows : First, method for improvement of historic cultural street is not fragmentary but integrated. Second, we suggested plans for improvement of DongChun-Dang street. Third, to make historic cultural images of streets, it is considered that guidelines include volumes, colors of surrounding buildings and designs of street furnitures have to be provided on the new urban or district development at historic cultural area.

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How Mothers Recognize Intake Status on Street Food of Elementary School Students in the Jeon Buk Region (전북지역 초등학생의 길거리 음식 섭취 실태와 이에 대한 어머니의 인식도)

  • Kim, Song-Hee;Yu, Hyeon-Hee
    • Korean Journal of Community Nutrition
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    • v.14 no.4
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    • pp.406-419
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    • 2009
  • This research has been surveyed on street food and snack intake status of elementary school students in the Jeon Buk region and the recognition of mothers has been observed for the objective of providing base materials for appropriate eating habits and nutritional education. As for status on intake of street food, most students (97.3%) have shown to have eaten from the street vendors while mothers assume low frequency in their child's intake of street food. Favorite street food choices had an agreement between mother and student as ddukbokki and dakkochi. Students were more tolerant in sanitation and necessity of street food than the mothers. This research shows that there is a difference in the recognition of street food between the students and their mothers. There a need required for improvement in the system as to provide quality food and to prevent poor quality food being exposed to the students. Furthermore, practical and appropriate education must be conducted at home and at school for better choices of food and a better lifestyle. (Korean J Community Nutrition 14(4) : 406${\sim}$419, 2009)

The Present Conditions and Remedial Measures of Street Trees in Miryang City (밀양시 가로수 현황과 개선방안)

  • 백재봉;조재우;최송현
    • Journal of Environmental Science International
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    • v.12 no.6
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    • pp.565-572
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    • 2003
  • The aim of this research is to survey the census of street trees and to provide remedial measures for street trees management to Miryang City. To do this, survey was carried out 16 region units in Miryang City. Through the survey, the current status of street trees’ map was made using automated map. From the results, it is turned out that 17,079 trees have been planted in Miryang City. The major species of street trees are Prunus serrulata var. spontanea(41.6%), Ginkgo biloba(26.1%), Pinus thunbergiana(13.3%) and the others are 12 species(19.0%). By the region units, Samrangjin-Eub is the most that 2,308 street trees are planted, and the next is Chodong-Myon(2,206 trees). The littlest street trees planted region is Cheongdo-Myon. In the results of comparison the component of street trees with other municipal cities, e.g. Seoul, Incheon, Kwangyang etc., only a few street trees have been planted so many in Miryang City. So, Miryang City indicated high proportionate street trees planting ratio. The suggested remedial measures are consisted with identifying the each street, increasing the green area by accepting the suitable street tree planting model, improving the physiological growth condition and systematic management with GIS.

Street trees system preference by birds introduction analysis (조류 도입에 의한 가로수 체계 선호도 분석)

  • Park, In-Hwan;Kim, Young-Hee;Jang, Gab-Sue;Jeong, Bo-Kwang;Kim, Tae-Ho
    • Current Research on Agriculture and Life Sciences
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    • v.25
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    • pp.19-23
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    • 2007
  • This research to streets at Daegu, and view adjective how people react when draw a bird into interior in city utilize and examine becoming direction of street trees system. Findings on survey, citizens appear by average 2.87 in management degree of street trees and average 2.76 in various of species of trees, discontent thing more or less by average 2.91 in satisfaction of the beauty, and demonstrate high shame from satisfaction for season stuff to comparative high 3.24, generally, citizens appear by there are parts to improve by do dissatisfaction about street trees system at Daegu. Also, street trees 2 lines plantings for a bird is average 3.05, shows affirmative feedback about that shrub utilization for a bird see high numerical value by average 3.4 and people draw a bird to space of city. Therefore, construct street trees friendly to the nature and be considered to need to re-establish set street trees environment in citizens preference to recover city ecosystem. As result that examine reaction which treat in street trees planting programs to draw birds into city through view adjective, Likert scales about 2 lines plantings of street trees and additional planting of shrub show affirmative feedback by average 3.4 both ordinary people and specialist group, if people want to draw birds into city by various of method, various research should be accomplished.

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A Study on the Exterior Form Composition of Street Buildings considering Landscape Characteristics in Gyeongju (경주시 경관특성을 고려한 가로변건축물 형태구성에 관한 연구)

  • Choi, Moo-Hyun;Hyun, Taek-Soo
    • Journal of the Korean Institute of Rural Architecture
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    • v.10 no.1
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    • pp.83-92
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    • 2008
  • This study aims to examine the perceptual features of street buildings, which affect the urban scape, and establish design guidelines by types of buildings. According to this purpose, this study conducted document research, field survey through site visits and questionnaire survey for each subject. The field survey was carried out to study the exterior form characteristics of street buildings, and images of the streetscape in Gyeongju. For the questionnaire survey, the preference of 33 architecture-related people on the formal constituents of street buildings was investigated. The results of the document research, field survey and questionnaire survey were put together to elaborate the design guideline for urban street facade in historical city.

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Study on Changes of Street Furniture in Digital Environment (디지털 환경에서 가로시설물의 변화에 관한 연구)

  • In, Chiho;Kim, Hyunsoo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.1D
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    • pp.129-136
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    • 2008
  • Along with the development in cutting-edge digital technology, the street space is also being changed. Mobile telecommunication units and internet give a big change in a human being's lifestyle. And the ubiquitous computing is proceeding with expanding its application range from the indoor space to the street space. As the street furniture is the convenient facility that allows a human being's life in street space to be abundant, it is getting advanced. First of all, in terms of such phenomenon, this study analyzed the cases of a research on application of street space and the actual condition of a change in the number of individuals for the street furniture, through a literature research of ubiquitous. Also, it researched into the realities of using the street furniture of the walking-desired streets at Daehac-ro and Hongdae district, where are two representative places related to digital generation. The next was carried out FGI (Focus Group Interview) with users of the street space in front of Hongik University and managers of the street furniture, and was researched into the use & management behavior, and recognition level on the street furniture. Thus, the key elements were extracted such as interchange of information for cultural activities, automation for interaction variability in function. Finally the core elements for future vision of street furniture in this digital era were extracted in 3I, namely, Information, Intellectualization, and Integration. This is considered to be applied to the establishment of direction in the process of high-tech digitalization in street furniture related to information hereafter.

A Study on the image evaluation of Street Landscape -Focused on an Analysis of Psychological and Physical Factors which Creates a Busy Street (가로경관의 이미지 평가에 관한 연구 - 번화한 가로를 만드는 심리적, 물리적 인자의 분석을 중심으로)

  • 이재원
    • Archives of design research
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    • v.17 no.2
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    • pp.135-146
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    • 2004
  • The street landscape image is through complex experience of psychological factor by the visionary experience and physical factor by recognize a street's structure. Therefore, the need for analyz-ing and evaluating the psychological and physical aspect of street view was aroused, and how much it has an effect on the outcome. Above all, a definite street standard of a region in its characteristics was selected to analyze the street characteristics of a region (commercial, business, and complex area). A questionnaire was used to measure psychological information felt in a street area. As a result, the street image holds similar characteristics according to regional characteristics and the amenity and busy condition play a major role in having the effect. To know of the effect of street of a region that is known to cause the busy in a region, the discriminant analysis was made between the selected regions to analyze the difference. As a result, the difference of the width of street, ratio of widths of sidewalk and driveway, the ratio of height of a building and width of street, and the difference of tree-planting ratio were main factors which helped to feel more of the contrary of street in a region. Current research has helped to make more precise analysis and evaluation of all kinds of street images, and suggested different means of having more live image in a street region through physical factors. To create more the busy in a region, it is considered that analyzing the image of a street would be used more.

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