• Journal of Korean Society of Industrial and Systems Engineering
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• v.45 no.3
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• pp.197-203
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• 2022

Urban space expansion is an important symbol of the urbanization process and has always been an important topic in urban studies. In addition, for sustainable city management, it is important to identify factors that can influence, such as the driving force and direction of urban space expansion, from the stage of establishing an urban development plan. To understand these factors, by observing the expansion process of a specific city, it is possible to sufficiently observe how the urban spatial dimension changes. Through a series of processes, the spatial growth characteristics of the city are analyzed, and the influence and results of important factors are analyzed. For this purpose, this paper examines the changes in the city's outer boundary and land use structure through monitoring data on urban areas of 14 cities in Hunan Province, China from 2000 to 2016. Temporal and spatial regularity according to the urban space expansion of these cities were analyzed, and a preliminary assessment was made on whether the urban space expansion is coordinated with the urban population growth. The assessment result showed: (1) The urban space of most cities has been extended rapidly in 2000-2015 however, the rate and the intensity of urban space expanding has been declining. (2) The construction of the industrial park is the core driving force of the urban space expanding, and the change of the urban space structure is manifested as enclave city expansion because that the industrial park is usually far away from the city center. (3) The population agglomeration is another driving force of the urban space expanding. At this time, the urban space expanding is like boundary extension. (4) Except Changsha city, all of the cities has a high urbanization-area-growth elastic coefficient. It means that most of the cities should enhance the land use degree.

• 한국방재학회:학술대회논문집
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• 2007.02a
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• pp.595-598
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• 2007

Urban storm water collection and conveyance systems are critical components of the urban infrastructures. During a storm event, street grate inlets are usually loaded with debris by the first-flush runoff volume. Grate inlets are subject to clogging effects. Effective interception area of grate inlets was decreased by clogging. It also decreased the interception capacity of grate inlets and increased the inundation area in street. Therefore, it is necessary to analyze the clogging characteristics and interception capacity change by clogging for appropriate design and management of grate inlets. In this study, field survey was executed to investigate debris and clogging pattern of grate inlet in 9 areas. The clogging factor with consideration of urban area characteristics was estimated with the field survey results.

• Spatial Information Research
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• v.11 no.3
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• pp.301-325
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• 2003

Urban residential area, one of the main subjects of urban and architectural studies, can be analyzed accurately and rapidly with CIS. (Geographic Information System) And the applications of GIS in urban studies are too macro to be explained in architectural terms and the ones in architectural studies are not so much active rather be used as a secondary means. So the studies in urban-architectural scale are very useful in many ways. This study explores urban-architectural possibilities of analytic capabilities of GIS through the analysis of spatial characteristics of residential area in terms of land price according to parcel attributes. It is found, firstly, that the parcel attributes have relations with land price and its distribution patterns. Secondly, it is verified that the visualization capability of GIS can be a very useful method of analysis through user-interface effects in urban-architectural scaled analysis.

• Journal of Information Technology Services
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• v.19 no.1
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• pp.1-16
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• 2020

Suncheon City Regeneration Project is known as the concept of cultural residents. Through the previous projects, the residents' capabilities have been improved, and the projects have been carried out according to their strategies. For this reason, participants in urban regeneration projects are important. The purpose of this study is to actually identify the 'rescue center' and 'direct relationship' with the analysis utilizing the characteristics of social networks NetMiner solution of the participants, who led the project, Suncheon. Surveys and interviews were conducted for participants, and the characteristics of social networks were analyzed in time series to quantify and visualize the results. As a result of the analysis, social networks were changed among the participants before and after the urban regeneration project. Initially, loose networks were denser over time, and initially networks formed only around participants were expanded over time. Network analysis has revealed that the system is strengthening with urban regeneration projects in the form of public and public-private cooperation. This highlights the need for a city-centered urban regeneration strategy centered on people and shows that a dense network of participants can be a success factor.

• KIEAE Journal
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• v.12 no.1
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• pp.11-19
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• 2012

The subject of this study is capital area including Seoul and Incheon, and metropolitan area including Daejeon and Busan among urban redevelopment project district that are currently promoting urban redevelopment project. Data for analysis is implemented collected through visiting each households in project district. Resettlement decision characteristics are analyzed with considering householder's characteristic, house member's characteristic, residential space's characteristic, and area characteristic of families residing in urban redevelopment project area. Through researching characteristics and preferences of residents in project area by urban redevelopment business, improvement were found and implications were provided. Consequently, there are many factors to consider resettlement when deciding household's resettlement when deciding on household's resettlement after the redevelopment project depending on household's characteristics. So, political methods are needed to accomplish urban redevelopment project by resident's position through characteristic and preference survey of resident on project district. Therefore, the study can be utilized as basic data that considers characteristic of each households and region when establishing house policy in order to correspond to housing market that satisfies future consumer's demand.

• Journal of Environmental Impact Assessment
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• v.22 no.5
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• pp.513-523
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• 2013

This purpose of this work is to explore the characteristics of urban thermal environment distribution with the case of Daejeon. To do that, this work applied GIS Spatial Statistics to the LandSAT images gathered from 2000 to 2011. The urban thermal environment distribution at the time point of 2 showed high spatial autocorrelation. Therefore, it is judged that spatial autocorrelation is needed to increase the reliability and explanatory power of the characteristics of thermal environment distribution. In the case of the thermal in Daejeon, its positive clustering appeared high at the time point of 2, and its clustering in 2011 more gradually decreased than that in 2000 to 2011. In particular, given the decrease in the core H-H region, it was found that the thermal environment of Daejeon was greatly improved. However, since the rise in the region L-L means another changed like construction of a new city, it is judged that it is necessary to come up with a proper plan. It is considered that this analysis of the characteristics of urban thermal environment distribution in consideration of spatial autocorrelation L-L be useful for providing a fundamental material necessary for the policy and project of thermal environment improvement.

• Korean Institute of Interior Design Journal
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• v.19 no.6
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• pp.161-168
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• 2010

A city is a type of culture as living styles people have accumulated, In Particular, urban streets are integrated bodies of culture based on regional history and tradition which are easily accessible by people. However, due to insensible expansion policy of current cities, decline of old downtowns which have kept cultural characteristics of each region, hollowing out of the downtowns, expansion of new downtowns which have uniformed characteristics are weakening identities of each region. To overcome such problems, a culture-oriented approach as one of the urban regeneration strategies which have been appeared since 1980s is effective. Life style which has been formed by human activities can be considered as the culture of comprehensive concept and peculiar resources of each region are distinctive culture of each region. Cultural streets in which people can share each other's feeling may influence regional activation through cultural influence while preserving regional tradition and history. Therefore, this study aims to discover spatial characteristics of cultural streets through theoretical examinations on formation of streets in as aspect of urban regeneration and identify their characteristics by analyzed cases of domestic cultural streets.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2005.11a
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• pp.229-234
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• 2005

The purpose of this study is to analyze a Characteristics of block formation and commercialization of residential books commercial area along urban arteries on Teheran-ro in Seoul. 'Teheran-ro' is selected as a case site to analyze the characteristics of residential blocks commercial area along urban arteries. The study analyzes the characteristics of the street network and block formation in commercial area along arteries and rear residential blocks, and commercialization of residential blocks commercial area along urban arteries according to the characteristics of street network and block formation. The analysis about block formation progress about i ) a street network and block formation, ii ) the scale of blocks, iii) division of lots, iv) lots system. The analysis about commercialization of residential blocks commercial area progress about i) a street network and block formation, ii) a density of building, iii) a use of building

• Journal of the Korean Society of Environmental Restoration Technology
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• v.11 no.6
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• pp.11-25
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• 2008

In broad agreement on the need for forests in the city, researches on the urban forest are being actively carried out. Nonetheless, since these researches focus on functional usage within living spaces, finding methods for creation of urban forests and technical solutions have remained chief issues as a consequence. This paper, which attempts to historically examine the properties of the urban forest within living space, has the characteristics of researching basic angles for approaching the creation of contemporary urban forests. For this purpose Joseon Dynasty genre paintings, which represent living conditions of Joseon era, have been decided as theme of the paper. Particularly the focus was limited to genre paintings depicting trees, giving phenomenal observations. As a result, some remarkable characteristics emerged as functional urban forest, symbolic urban forest, topological urban forest, and appreciative urban forest. Urban forest within living space mainly appear as functional, showing an even distribution in small numbers rather than gathering in large groups. The following can be inferred regarding this and related to the setting up of the scope of, and creating of, contemporary urban forest : First, from the viewpoint of urban forest creation there is a need to study more subdivided and refined types of the urban forest and to actually realize these types. Second, from the viewpoint of urban forest usage, one needs to approach existing forests, ranging from small-scale including invididual trees, to mid-, large-, and super scale, as urban forests. In this, a network of major trees, and thereby a matrix of all trees formed by that network, will be formed. Third, from the viewpoint of urban forest improvement, approaches need to be based on planting trees in even distribution across the whole city.

• Journal of the Korean Solar Energy Society
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• v.29 no.3
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• pp.19-27
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• 2009

In this study, Urban Climate Simulation was performed by 3-Dimensional Urban Canopy Model. The characteristics of urban climate were analyzed combining artificial land coverage, building size, heat production from the air conditioning and topographic conditions as physical variables which affects urban climate characteristics. The results are as follows. (1) The aspects of the urban climatal change is derived to be related to the combination of the building coverage ratio, building height and shading area. According to the building height, the highest temperature was increased by $2.1^{\circ}C$ from 2-story to 5-story building and the absolute humidity by 2.1g/kg maximum and the wind velocity by 1.0m/s was decreased from 2-story to 20-story building. (2) Whole heat generation was influenced by the convective sensible heat at the lower building height and by the artificial heat generation at the higher one over 20-story building influence to some extent of the building coverage ratio. The effect of the altitude is not more considerable than the other variables as below $1^{\circ}C$ of the air temperature. In the last, deriving the combination of building coverage and building height is needed to obtain effectiveness of the urban built environment planning at the point of the urban climate. These simulation results need to be constructed as DB which shows urban quantitative thermal characters by the urban physical structure. These can be quantitative base for suggesting combinations of the building and urban planning features at the point of the desirable urban thermal environment as well as analyzing urban climate phenomenon.