• Title/Summary/Keyword: Streets

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The Generative Mechanism of Cloud Streets

  • Kang Sung-Dae;Kimura Fujio
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • v.1 no.2
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    • pp.119-124
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    • 1997
  • Cloud streets were successfully simulated by numerical model (RAMS) including an isolated mountain near the coast, large sensible heat flux from the sea surface, uniform stratification and wind velocity with low Froude number (0.25) in the inflow boundary. The well developed cloud streets between a pair of convective rolls are simulated at a level of 1 km over the sea. The following five results were obtained: 1) For the formation of the pair of convective rolls, both strong static instability and a topographically induced mechanical disturbance are strongly required at the same time. 2) Strong sensible heat flux from the sea surface is the main energy source of the pair of convective rolls, and the buoyancy caused by condensation in the cloud is negligibly small. 3) The pair of convective rolls is a complex of two sub-rolls. One is the outer roll, which has a large radius, but weak circulation, and the other is the inner roll, which has a small radius, but strong circulation. The outer roll gathers a large amount of moisture by convergence in the lower marine boundary, and the inner roll transfers the convergent moisture to the upper boundary layer by strong upward motion between them. 4) The pair of inner rolls form the line-shaped cloud streets, and keep them narrow along the center-line of the domain. 5) Both by non-hydrostatic and by hydrostatic assumptions, cloud streets can be simulated. In our case, non-hydrostatic processes enhanced somewhat the formation of cloud streets. The horizontal size of the topography does not seem to be restricted to within the small scale where non-hydrostatic effects are important.

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Finding Connection between Social Capital and Physical Space - Looking for Spatial Design Features - (사회적 자본과 공간의 연관성에대한 탐색적 연구 - 공간디자인 요소를 찾아서 -)

  • Seo, Hyun-Bo
    • Journal of the Korean housing association
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    • v.28 no.1
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    • pp.1-8
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    • 2017
  • Korea is experiencing unprecedented destruction of communities and crisis of mental health represented by top suicide rate among OECD countries. Its causes are manifold of various factors. One of them is lack of social support and broken communities that are closely related to social capital that is linked to other health indicators such as mortality rates. This studies looks for ways to improve social capital through spatial structure and features especially social capital related to neighborhood. Researchers conducted research literature review and observation on physical features of neighborhood streets and alleys. Review of studies show housing types can affect social capital level. High-rise apartments are related with lower neighborhood related social capital compared to single homes and low-rise multi-housing. Studies that mainly examined the physical features such as street layout showed that social encounters happened around local stores and crossings of small roads. Researchers identified actual streets that are more likely to be related with social activities in the neighborhood. Those streets were with physical elements that helped social exchange such as narrower streets, exposed stairs, street furniture of residents, parks, crossing of streets while other streets were with wider and easier access of cars.

An Introductory Study for Developing the Urban Street Design Manual (도시부 도로의 구조시설.기준 작성 기초 연구 - 횡단구성을 중심으로 -)

  • Kim, Eung-Cheol;Oh, Ju-Taek;Kang, Jin-Gu;Choi, Yun-Sook
    • Journal of Korean Society of Transportation
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    • v.22 no.4 s.75
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    • pp.69-82
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    • 2004
  • Urbanization of Korea reaches up to 90% in the year 2003. What that means is that 90% of population live in the city areas. This phenomenon emphasizes importances of urban streets where people feel accessibility and level of environmental amenity, enjoy recreational activity, and live for a life. However, the current Korean manual for designing road is not enough to accomodate various activities of urban streets since its target is basically rural roads. This study proposes the necessity of a new design manual of urban streets via analyzing the practices of the development countries, and aims to recommend what should be prepared and how those are defined for developing a design manual of urban streets in Korea. It is inevitable that the design manual of urban streets be based on the flexibility and diversity. The manual should be made through consensus among the related stakeholders such as designers, residents and officials. And it also should reflect the characteristics of each city. It is somehow true that without the manual, designing of urban streets can be done although it is not fully acceptable. This does not mean that the necessity of the manual can be ignored. Rather, we should remember that the related stakeholders may not want to reveal what are hidden in developing the design manual of urban streets. What are hidden is that developing the design manual of urban streets is difficult problem to solve. It is a wish that this study triggers the on-going research and interests on developing the design manual of urban streets.

The Analysis and Preference of Contemporary Street Fashion -Comparative Analysis of Kangnam and Kangbuk- (현대 스트리트 패션 분석 및 선호도 연구 -강남권과.강북권의 비교 분석-)

  • 이영재
    • Journal of the Korean Society of Costume
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    • v.53 no.2
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    • pp.87-100
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    • 2003
  • In this study, the modern street fashion of Kangnam and Kangbuk was qualitatively examined and comparatively analyzed through the field case study, and it is expected that the results of this study be importantly used in planning commodity of fashion brand. The photographs taken in the Kangnam and Kangbuk streets were classified as looks. which were comparatively analyzed each other. Also, a questionnaire was carried out in return for women in those streets, and data related with an age group, occupation, school, academic major, etc. for participant personality and with time purchasing clothing. average expenses for clothing per month. market and reasons for buying clothing, current fashion style, etc. for fashion preference trend were obtained. The streets around Kangnam subway station and KOEX mall for the Kangnam fashion style were selected for the sampling, and Sinchon and entrance of Ewha University for the Kangbuk, where college students and middle/high school students mostly gather. Results showed that an easy casual style was most popular in the Kangbuk area, and a romantic feminine style including a bobos style most popular in the Kangnam area. This case studied on the street fashion gaves the qualitative results about the fashion trend and fashion prediction information, and they could be compared with quantitative those known previously. Also, it could be a basis research on strengthening the competitive power in fashion commodity. However, this study was subjected to restriction in the sampling due to the short time and a few streets. This study will be extended into longer time and various streets including Apgujungdong in Kangnam and many colleges in Kangbuk.

The Study on the Characteristics of Festival Caused by the Liminality Tendency in the Traditional Street Space. - Based on the analysis on the Chinese painting - (전통 가로공간의 리미날리티적 성향에 의한 페스티벌적 특성 분석 - 중국의 <청명상하도(淸明上河圖)>에 나타난 가로공간을 중심으로 -)

  • Lu, Mu-Dan;Lee, In-Hee
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.9
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    • pp.3-9
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    • 2019
  • Modern cities have been clustered with spaces defined by specific functions, while standardized with well-defined areas. The monopoly of the function reduces the publicity of the space and hinders people's daily communication. Street also be overwhelmed by the function of being a "passage", traditional streets were losing their liminality. In fact, the street was a place of meeting, a place of events, and a place of freedom to broaden the choices of behavior. The freedom to stop or walk on one'sits own, be attracted by unforeseen events that are available on traditional streets, has become rare on the streets of big cities. Life has become dull and monotonous, too, through the modelling of the street system. Cities have become grim as communities are cut off and fragmented. In today's big cities, public attention to the liminality of the traditional streets need to be aroused so that people could gather freely and have a festival time.

A Study on the Reasonable Power Demand Method and Load Characteristics in Underground Streets (지하상가 부하설비의 사용특성과 전력관리 방안 연구)

  • Kim, Se-Dong;Choi, Do-Hyuk;Ryu, Seung-Gi
    • Proceedings of the KIEE Conference
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    • 1996.07a
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    • pp.235-237
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    • 1996
  • This paper shows a reasonable power demand method and load characteristics in underground streets, that was made by the systematic and statistical way considering actual conditions, such as investigated electric equipment capacity, electric power consumption, load characteristics, etc for 13 underground streets.

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A Study on Design Requirements of Lighting system in Underground Streets (지하상가시설의 조명용 변전용량 기준설정에 관한 연구)

  • 김세동;최도혁
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.10 no.3
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    • pp.43-46
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    • 1996
  • This paper shows a reasonable design standard of lighting system in underground streets, that was made by the systematic and statistical way considering actual conditions, such as investigated lighting transformer capacity, electric power consumption for lighting, load characteristics, etc for 5 underground streets.

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Evaluation of Residential Street by Pedestrain and Vehicle Occupancy (보행자.차량 점유율에 의한 주택지가로의 평가에 관한 연구)

  • 정헌영
    • Journal of Korean Society of Transportation
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    • v.14 no.2
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    • pp.31-44
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    • 1996
  • This study focuses on the evaluation of the streets on residential areas. For this purpose, pedestrain and vehicle occupancy indicators on residential areas are proposed, and vehicle, pedestrain flow and status of on-street parking on residential streets are analyzed. Also, according to the suggested occupancy indicator, occupancy status of pedestrain and vehicle are identified. At the end, evaluation of residential streets are conducted. The suggested occupancy indicator is a quantitative indicator which can represent the traffic situation on street. It can also be represente din the same dimension among pedestrain, vehicle flow, packed vehicle. Also, occupancy indicator can be utilized for the allocation and evaluation of transportation modes on residential street. Except on-street parking during the day time, moving vehicle occupancy rate contains the more than 80 precent when it is estimated based on the vehicle flow and pedestrain only. As the streets on residential area are occupied by the pedestrain approximately 20 percent during the day time, it is identified quantitatively that the necessity of space for pedestrain.

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A Study on the Townscape and Image of Kyungju City (경주시 도시경관과 그 이미지에 관한 연구)

  • 이규목
    • Journal of the Korean Institute of Landscape Architecture
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    • v.20 no.4
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    • pp.39-53
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    • 1993
  • The purpose of this study is to interpret the townscape of Kyungju based on the urban images captured by citizens. 58 verval interviews and 50 sketch maps were collected and analized comparing with York which was a similar old city in England. In the verbal questions, elements like tombs, historic remains, families and historic values were frequently mentioned mainly because of their social and historic meaning. But in the sketch maps, physical elements like railroad station, city hall, roundabouts and streets were more frequently appeared probably because of their visibility. As a whole, many tombs which were built long ago in and around the city were commonly mentioned in verbal questions, sketch maps and even in nicknames. As the most dominant factors, it can be compared with York Minster in York. But whereas the shopping streets in York were very attractive to the people, many streets in Kyungju were regarded as dirty and inharmonious elements in townscape. In conclusion, we can call Kyungju 'the city of tombs', but to evoke the sense of place in the city the streets should be improved and activated as the center of city life.

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The Generative Mechanism of Cloud Streets

  • Sung-Dae Kang;Fujio Kimura
    • Journal of Environmental Science International
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    • v.1 no.2
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    • pp.119-124
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    • 1992
  • Cloud streets were successfully simulated by numerical model (RAMS) including an Isolated mountain near the coast, large sensible heat flux from the sea surface, uniform stratification and wind velocity with low Froude number (0.25) in the inflow boundary The well developed cloud streets between a pair of convective rolls are simulated at a level of 1 km over the sea. The following five results were obtained: 1) port the formation of the pair of convective rolls, both strong static instability and a topographically induced mechanical disturbance are strongly required at the same time. 2) Strong sensible heat flux from the sea surface is the main energy source of the pair of convective rolls, and the buoyancy caused by condensation in the cloud is negligibly small. 3) The pair o( convective rolls is a complex of two sub-rolls. One is the outer roll, which has a large radius, but weak circulation, and the other is the inner roll, which has a small radius, but strong circulation. The outer roll gathers a large amount of moisture by convergence in the lower marine boundary, and the inner roll transfers the convergent moisture to the upper boundary layer by strong upward motion between them. 4) The pair of inner rolls form the line-shaped cloud streets, and keep them narrow along the center-line of the domain. 5) Both by non-hydrostatic and by hydrostatic assumptions, cloud streets can be simulated. In our case, non-hydrostatic processes enhanced somewhat the formation of cloud streets. The horizontal size of the topography does not seem to be restricted to within the small scale where non-hydrostatic effects are important.

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