• 한국IT서비스학회지
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• 제18권1호
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• pp.131-140
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• 2019

This study compares and analyzes the spatial distribution of people in two cities using location information in twitter data. The target cities were selected as Paris, a traditional tourist city, and Dubai, a tourist city that has recently attracted attention. The data was collected over 123 days in 2016 and 125 days in 2018. We compared the spatial distribution of two cities according to the two periods and residence status. In this study, we have found a hot place using a spatial statistical model called dart-shaped space division and estimated the urban area by reflecting the distribution of tweet population. And we visualized it as a CDF (cumulative distribution function) curve so that the distance between all the tweets' occurrence points and the city center point can be compared for different cities.

• 건축역사연구
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• 제31권2호
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• pp.51-65
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• 2022

Seoju is one of the nine weeks of the ancient period, and according to literature records, the construction of Seojuseong Fortress has a long history of 2573. This is the land of Oseongtong-gu, a political and military hub, and flood disasters have frequently led to frequent reconstruction of fortresses. In particular, it is also an important place to show that the function of the fortress is defensive and has a function of preventing floods. This study analyzed the shape of Seojuseong Fortress and the characteristics of urban spaces in the Myeongcheong period through excavation data and literature data.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1902-1907
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• 2007

This paper suggests improvements in travel cost function of transit assignment model by analysing existing model. Two types of travel cost function are widely used for congested public networks. The one is used for strictly restricting public transport capacity. Another is non-decreasing function such as BPR function. In this paper, we analyse two types of travel cost function in case of intercity rail. The characteristics of intercity rail are different from those of public transit in urban area. Therefore travel cost function must be differently applied in each case.

• 디자인학연구
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• 제18권1호
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• pp.115-124
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• 2005

최근 디지털 기술의 급속한 발전은 정치, 경제, 사회, 문화 등 우리 사회의 거의 모든 분야에 엄청난 영향을 미치고 있다. 우리가 살고 있는 도시가로는 역시 예외는 아니다. 디지털 기술의 발달은 도시가로의 물리적 구조와 성장 패턴, 그리고 그동안 도시가로가 수행해 왔던 기능과 역할을 새롭게 변모시키고 있다. 지금의 도시가로는 그동안의 합리적이고 효율적이라는 목적아래 추구되어 온 똑같은 모습의 기능주의 적인 형태에서 벗어나야 할 때이다. 디지털 기술을 도시가로에 공간적으로 담아내고, 동시에 그 문화의 생성과 지속을 위해, 현재 우리가 살아가고 있는 도시공간의 구체적 맥락 속에서 독특하게 형성되고 있는 디지털 생활양식, 즉 디지털 도시가로문화에 대한 성찰이 필요하다. 본 연구에서는 도시가로에서의 가로의 기능을 -최근 디지털기술의 발전이 새로운 형태의 교류의 장을 열게 되는데 따른-인간을 위한 소통의 중심지로 보고자 한다. 또한 디지털 기술로 인해 앞으로의 도시가로의 물리적 환경은 어떠한 형태와 기능으로 진화해 나갈 것인가에 관심의 초점을 두고, 아울러 이러한 도시의 진화를 선도해야 하는 도시계획 및 환경디자인 분야가 디지털 기술을 어떻게 수용해야 하고, 앞으로 어떠한 역할을 담당해야 할 것인가를 살펴보고자 하였다.

• Korean Chemical Engineering Research
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• 제47권3호
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• pp.386-393
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• 2009

본 연구는 도심녹지의 대기질 영향을 정량적으로 해석하기 위해 수행되었다. 도심의 '근린공원 녹지'가 가스상 오염물질인 '질소산화물'과 '황산화물'에 미치는 영향을 분석하였으며, 이를 위해 녹지의 대기환경영향평가 모델링시스템이 개발되었다. 모델링은 서울 도심의 대표적 근린공원이라 할 수 있는 종로구의 파고다 공원 인근지역을 대상으로 수행되었다. 모델링 결과, 도시 근린공원의 수목은 자체적으로 오염물질을 흡수 제거하여 대기질을 개선시키는 기능이 크다고는 볼 수 없지만, 상대적으로 친환경적인 토지이용형태(배출원이 거의 없고, 해당지역 및 주변지역에서 원활한 기류소통 촉진)를 유지함으로서 대기환경 악화를 억제하는 효과는 탁월한 것으로 나타났다. 대기오염이 심한 도시지역에서의 대기정책은 오염원 추가건설 제어를 위한 녹지보호정책을 우선적으로 고려해야 할 것으로 판단된다.

• 한국토양비료학회지
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• 제49권5호
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• pp.572-576
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• 2016

Soil quality assessment is an important tool for environmental management in an agricultural field. It can be used to evaluate the health of the soils and to establish the basis for sustainable urban agriculture and soil management. For this study, the chemical properties of the soils used for urban agriculture were examined. Results of the soil analysis for chemical properties were applied to soil quality assessment system, which is composed of principal component analysis, application to scoring function and derivation of soil quality index (SQI). Soil pH, electrical conductivity (EC), organic matter (OM), total nitrogen (T-N) were determined for minimum data set (MDS) according to principal component analysis. Based on the results of scoring for four indicators (pH, EC, OM, T-N), soil pH was the indicator that needs the most urgent management. Results of SQI derivation showed that many of the urban farms appeared to be insufficient score in comprehensive soil quality assessment. In conclusion, soil management practices based on scores derived from soil chemical indicators need to be carried out to maintain sustainable urban agricultural soil environment and to provide easy-to-understand information to urban farmers.

• 대한교통학회:학술대회논문집
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• 대한교통학회 1996년도 제3회 한-중 국제학술회의
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• pp.3-22
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• 1996

To translate the goal of redeveloping Shanghai as one of the international hubs of economy, finance and trade in 2010, the foundation is to be created, and international standing as global city is to be established preliminarily. Transformation of urban functions and approach of "High starting position and jump over" will give impetus to promote Shanghai as an international metropolitan within fairy short period of time. To transform urban functions and translate" High starting position and jump over", certain links which have great impact on Shanghai's rising-up must be handled and normal approach to develop the city must be renovated to reach the goal of establishing an international city. Four strategic approaches as following are explored in this paper : $\bullet$ To transform urban function from industry only to integrated developments. $\bullet$ To break through administrative boundary and expand urban development space. $\bullet$ To develop centralized urban infrastructure framework. $\bullet$ And to erect modern life and culture facilities towards 21st century.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.466-471
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• 2009

Most surveillance systems of urban transit are based on CCTV(Closed Circuit Television). However, there is limitation that the passive monitoring system using CCTV in urban transit surveillance system to monitor massive environment applies thousands of cameras and it depends on operator's instinctive judgement whether it happens an accident or disaster. Urban transit operation corporations try to introduce the intelligent technology to overcome these problems as mentioned above. The intelligent system can be organized various ways and made configuration for purpose and function. In this paper, we describe the configuration problems of the existing surveillance system and propose the proper intelligent system configuration for urban transit We expect that the proposed configurations are very helpful to introduce the intelligent technology for urban transit surveillance system.

• 한국조경학회지
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• 제38권5_2호
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• pp.135-143
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• 2010

The 21st century is currently undergoing an era of urban regeneration. The purpose of this research is to secure and expand the green infrastructure with zoning regulation in the context of urban regeneration. This objective also seeks a way of urban regeneration through the use of existing large parks by employing park-based mixed use districts around the periphery of large urban parks and green spaces. This research examines the limits, problems of existing single- and mixed-use zoning districts for securing of green infrastructure by book review. This research finally advocates introducing a another type of urban mixed-use districts, namely park-based mixed use district and its characteristics and functions, by using landscape ecology and landscape urbanism as a theoretical basis. The results of this research suggested that large parks and green spaces should be considered as one of patch in landscape ecology. This research also discusses the possibility that, as patches have ecotones with greater biodiversity in the peripheral areas of it, the green infrastructure can be constructed around the periphery of large urban large parks and green spaces by introducing cultural ecotone of nature's convergence with the city. As a result, the green infrastructure and high density of land use and using behaviour can be increased. Park-based mixed use districts encourage the convergence of parks and the city, with the park being used as the main function; residential, commercial, business and cultural uses etc. are partial functions. In order for the park-based mixed use districts to be designated, the size of large urban parks and green spaces, as well as location, city function and condition of the peripheral areas all need to be considered. The necessity to examine the designated width of the park-based mixed use districts and the form of the peripheral area was also discussed. This research, which is based on investigative research results, suggests that further in-depth and comprehensive analysis of the actual condition of urban large parks and peripheral areas needs to be completed. Specialists and other interested parties, analysis and investigation on related plans and designs are also needed for the institutional practice.

• 한국지리정보학회지
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• 제27권1호
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• pp.52-66
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• 2024

본 연구는 공간구조의 체계정립 및 계획 실효성 확보를 위하여, 부산광역시를 대상으로 도시기본계획에서 설정된 도시 중심지의 경계를 설정하고 중심지의 역할과 위상을 진단함으로써 중심지의 공간 체계와 특성을 파악하는데 목적이 있다. 이를 위하여 선행연구를 통해 중심지의 특성을 나타내는 4개의 지표를 선정하였고 지리적 경계 분석에 강점이 있는 공간통계기법으로 중심지 경계를 도출하였다. 또한 도출된 중심지 경계를 활용하여 각 중심지가 부산광역시 공간구조에서 가지는 영향력과 잠재력을 진단하기 위해 중심지 특성 지표와 인구잠재력 함수를 이용하였다. 분석 결과 중심지에 따라서 규모의 차이가 크게 발생하였으며, 용도지역상 상업지역이 활성화되지 않은 미활용지역과, 상업지역을 넘어 주거·공업지역으로 확산되는 확장지역이 도시 중심지마다 다르게 나타났다. 중심지의 흡인력을 나타내는 잠재력 측정 결과에서도 인구잠재력이 강한 지역과 약한 지역이 나타났다. 따라서 중심지 기능 강화를 위해서는 중심지 위계특성과 영향력 측정 결과를 기반으로 체계적인 관리 및 계획적인 육성전략이 필요하다. 본 연구에서 분석된 결과는 지속가능한 도시성장체계 구축과 균형발전 및 중심지 기능 강화를 위한 역세권개발계획 및 공간혁신구역과 함께 미래의 다양한 도시계획 수요와 정책의 변화에 대응하기 위한 자료로 활용 가능할 것이다.