• Title/Summary/Keyword: urban planning approach

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Automatic Extraction of Road Network using GDPA (Gradient Direction Profile Algorithm) for Transportation Geographic Analysis

  • Lee, Ki-won;Yu, Young-Chul
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.775-779
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    • 2002
  • Currently, high-resolution satellite imagery such as KOMPSAT and IKONOS has been tentatively utilized to various types of urban engineering problems such as transportation planning, site planning, and utility management. This approach aims at software development and followed applications of remotely sensed imagery to transportation geographic analysis. At first, GDPA (Gradient Direction Profile Algorithm) and main modules in it are overviewed, and newly implemented results under MS visual programming environment are presented with main user interface, input imagery processing, and internal processing steps. Using this software, road network are automatically generated. Furthermore, this road network is used to transportation geographic analysis such as gamma index and road pattern estimation. While, this result, being produced to do-facto format of ESRI-shapefile, is used to several types of road layers to urban/transportation planning problems. In this study, road network using KOMPSAT EOC imagery and IKONOS imagery are directly compared to multiple road layers with NGI digital map with geo-coordinates, as ground truth; furthermore, accuracy evaluation is also carried out through method of computation of commission and omission error at some target area. Conclusively, the results processed in this study is thought to be one of useful cases for further researches and local government application regarding transportation geographic analysis using remotely sensed data sets.

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Study on the Delineation of City-Regions Based on Functional Interdependence and Its Relationships with Urban Growth (기능적 상호작용에 따른 도시권 설정과 성장관계에 대한 연구)

  • Kim, Dohyeong;Woo, Myungje
    • Journal of Korea Planning Association
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    • v.54 no.7
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    • pp.5-23
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    • 2019
  • The central government has implemented policies to strengthen the competitiveness of small and medium sized cities for balanced development at the national scale. However, since it is often difficult to enhance the competitiveness through partial projects of each jurisdiction, many local governments collaborate at the regional scale. This suggests that a regional approach is important for the management of small and medium sized cities. On the one hand, the concept of network city suggests that various functional networks can affect the growth of small and medium sized cities. Given this background, the purposes of this study are to delineate regional boundaries at national scale and identify their relations of growth by using functional network and Moran's I index. The study uses the Markov-chain model and cluster analysis to delineate the regions, and Moran's I is employed to identify the relations of growth. The results show that interactions between jurisdictions through networks could be crucial factors for growth of small and medium sized cities, while the networks based on passenger travel and freight movement have different implications. The results suggest that policy makers should not only consider local level investments, but also take the characteristics of networks between cities into account for achieving balanced development and developing regeneration policies.

Population Allocation at the Building level for Micro-level Urban Simulation: A Case of Jeonju, Korea

  • Kim, Dohyung;Cho, Dongin
    • Asian Journal of Innovation and Policy
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    • v.9 no.2
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    • pp.223-239
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    • 2020
  • It is important for urban planners and policy makers to understand complex, diverse urban demands and social structure, but this is not easy due to lack of data that represents the dynamics of residents at micro-geographical level. This paper explores how to create population data at at a micro-level by allocating population data to building. It attempted to allocate population data stored in a grid layer (100 meters by 100 meters) into a building footprint layer that represents the appearance of physical buildings. For the allocation, this paper describes a systemic approach that classifies grid cells into five prototypical patterns based on the composition of residential building types in a grid cell. This approach enhances allocation accuracy by accommodating heterogeneity of urban space rather than relying on the assumption of uniform spatial homogeneity of populations within an aerial unit. Unlike the methods that disaggregate population data to the parcel, this approach is more applicable to Asian cities where large multifamily residential parcels are common. However, it should be noted that this paper does not demonstrate the validity of the allocated population since there is a lack of the actual data available to be compared with the current estimated population. In the case of water and electricity, the data is already attached to an individual address, and hence, it can be considered to the purpose of the validation for the allocation. By doing so, it will be possible to identify innovative methods that create a population distribution dataset representing the comprehensive and dynamic nature of the population at the micro geographical level.

The Urban Structure and Sustainable Regeneration in Lubbock City, Texas (미국 텍사스주 러벅시의 도시 구조와 지속가능한 도시 재생)

  • Jeon, Kyung-Sook
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.4
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    • pp.848-863
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    • 2014
  • In recent years, various perspectives on the sustainable regeneration based on culture, history, identity, and the ecosystem have arisen in attempt to harmonize the environmental, economic, and social issues of the city. However, these ideas did not consider the importance of urban structure for sustainable regeneration. This research attempts to reveal the fundamental characteristics of sustainable regeneration of Lubbock, Texas in the United States through the analysis of urban structure, city planning and city regeneration planning. Despite the 300% expansion of city area in the 1950s, since the 1970s Lubbock's civic center has decreased in population due to middle class migration into southwestern and western suburbs. In the 1980s, a redevelopment organization was established, and a private sector-centered regeneration plan was implemented. In this study, a new approach for urban regeneration was introduced, resulting in strategies focusing on the linkage of urban regeneration into the characteristics of the entire city.

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A Study on the Characteristics of Campidoglio Hill Plan by Michelangelo (미켈란젤로의 캄피돌리오 언덕계획의 특성에 관한 연구)

  • Kim, Seok-Man
    • Journal of architectural history
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    • v.18 no.6
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    • pp.85-101
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    • 2009
  • The Purpose of this paper is a study on the characteristics of Campidoglio hill plan by Michelangelo. 1. The plan of the Campidoglio hill is composed of the harmonized and united space, in spite of the existing conditions of a steep flight of land, a irregular site shape, a building of each other different dimension and form. And it is newly changed by site left through the modification of existing building elevation, utilization of existing building for new planning, connection with existing building and newly planned building from plaza composition of trapezoid form. 2. The concept of planning of the Campidoglio hill is planned by compromising for requirements of Baroque after Renaissance which urban planning characteristics of Baroque is as the relation with urban street through a inclined stairs and process such as street-approach stairs-plaza-symbol of inside plaza-building. 3. The section plan of the Campidoglio hill is planned by which can be easily approached to the plaza through the inclined stairs of gentle angle from street at the center east-west direction of main axis such as main axis, utilizing the existing site shape, and it is composed of the convex shape ascending gently at the center central part of the plaza. 4. The plan of the Campidoglio hill is composed of the elation with the axis of existing Senatorio palace, building planning of perfect balance, plaza composition of reversed trapezoid form bybuilding planning, central concentrated planning of buildings surrounding plaza. 5. The three palace of the plan of the Campidoglio hill is composed of the concept as theater which the stage background forms the front elevation of Senatorio palace higher two palace and the wings of either side of stage form the front elevation of Conservatori palace and Nuovo palace, surrounding three palace elevation around plaza of trapezoid form.

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Improvement of White Shark Algorithms Combining Logistic Maps and Gaussian Variations for Underground Logistics Network System Optimization (지하 물류 네트워크 시스템 최적화를 위한 로지스틱 맵과 가우스 변이를 결합한 화이트 샤크 알고리즘 개선)

  • Zhou Bing;Byung-Won Min
    • Journal of Internet of Things and Convergence
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    • v.10 no.6
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    • pp.151-165
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    • 2024
  • The planning of underground logistics pipeline networks is a crucial component of urban underground logistics systems, aiming to find the optimal construction path for the logistics network, improve logistics efficiency, and reduce operational costs. However, due to the complexity and uncertainty of the underground environment, traditional planning methods often fall short. This paper proposes a improved underground logistics pipeline network planning method based on the White Shark Optimization(WSO) algorithm, referred to as LGWSO(White Shark Algorithms Combining Logistic Maps and Gaussian Variations). The proposed method first establishes an underground space model and then uses the LGWSO algorithm for path planning. By adopting chaos initialization method and Gaussian mutation strategy, the performance of the algorithm has been effectively improved. Through simulation experiments, the algorithm has demonstrated significant advantages in optimization accuracy, convergence speed, and robustness. Compared to traditional planning methods, the proposed approach is better suited to handle the complex underground environment, providing an optimized strategy for the construction of urban logistics system underground networks.

A study on the Analysis of Rural New Town Planning and Guidelines for Improvement Measures of Planning Process -The Case of Jang-seong Rural New Town and Hwa-soon Rural New Town in Chean Nam Provincial Area- (농촌 뉴타운 조성분석 및 개선 방안에 관한 연구 -전남 장성 뉴타운과 화순 뉴타운 계획을 중심으로-)

  • Oh, Byung-Tae;Choi, Chan-Hwan
    • Journal of the Korean Institute of Rural Architecture
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    • v.13 no.3
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    • pp.107-115
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    • 2011
  • This study aims to extract improvement measures in rural new town planning by selecting two similar new towns; Jang-seong rural new town and Hwa-soon rural new town in terms of size of town and population. To carry out this study, field survey is implemented and research articles and papers are examined. Based on this study, four major issues are drawned as follows ; Firstly, the location of rural new town is the most important criteria for the new town project to be successful and sustainable village. Site of Jang-seong rural new town which is chosen arbitrarily by local county is located unsuitable area. Secondly, compulsory facilities are dismissed in land use planning because of guidelines of the rural new town are not applied. Thirdly, the size of community centers are too big for 200 households to manage, and it can be a financial burden to inhabitants. Fourthly, rural new town project is building urban districts in rural area rather than constructing rural village, so the method of rural new town planning should be reconsidered. The central government has to supervise the rural new town project throughly by put it in more systematic approach.

SEGMENTATION-BASED URBAN LAND COVER HAPPING FROM KOMPSAT EOC IMAGES

  • Florian P, Kressler;Kim, Youn-Soo;Klaus T, Steinnocher
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2003.04a
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    • pp.588-595
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    • 2003
  • High resolution panchromatic satellite images collected by sensors such as IRS-1C/D and KOMPSAT-1 have a spatial resolution of approximately 6 ${\times}$ 6 ㎡, making them very attractive for urban applications. However, the spectral information present in these images is very limited. In order to overcome this limitation, an object-oriented classification approach is used to identify basic land cover types in urban areas. Before an image can be classified it is segmented at different aggregation levels using a multiresolution segmentation approach. In the course of this segmentation various statistical as well as topological information is collected for each segment. Based on this information it is possible to classify image objects and to arrive at much better results than by looking only at single pixels. Using an image recorded by KOMPSAT-1 over the City of Vienna a land cover classification was carried out for two areas. One was used to set up the rules for the different land cover types. The second subset was classified based on these rules, only adjusting some of the functions governing the classification process.

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Pavilion design with a sustainable architectural approach

  • Gorji, Asal Akbari;Nasiri, Seyed Amin Mortazavi;Mohammadi, Fatemeh Ali;Ghanbarnia, Hosein
    • Computers and Concrete
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    • v.30 no.3
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    • pp.197-207
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    • 2022
  • Population growth in cities increases the need for service facilities and different urban spaces, and the organism of the city undergoes profound changes. One of the main problems that endanger the physical environment of the city due to this turmoil is the lack of public spaces and cultural complexes that increase individual and social pollution and on the other hand make leisure facilities available to the public. It severely limits people and, ultimately, the flourishing of individual and social artistic tastes. Thus, dealing with an issue called cultural complex has special importance and is one of the most basic categories in the field of architecture and urban planning, so dealing with it must be done in a measured, comprehensive and accurate manner. Cultural shock results from the immersion of an unprepared traveler in a foreign culture. In other words, human connection with people, objects, places, organizations and institutions, thoughts and the world of information will be constantly becoming more unstable and diverse. As a result, there is a need to create places for information or, in a central sense, to acquire up-to-date knowledge that requires information in the fields of human individual and social life. Spaces and places are all kinds of media tools from gramophone records to cassettes, CDs, newspapers, magazines, Internet books, etc. Each person can use them according to his needs and work.

A Study of the Wall Environmental Design at Subway Station -For the Focus on Pusan Subway Station- (지하철역의 벽면 환경디자인에 관한 연구 -부산 지하철역을 중심으로-)

  • 박시환;장경수
    • Korean Institute of Interior Design Journal
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    • no.10
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    • pp.28-33
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    • 1997
  • The primary purpose of this thesis is to offer users for the better surroundings in planning subway wall design through analyzing the Wall Environmental Design at Subway Statiov. As the urban circumstances were developed by the economic growth, the new city plan, re-development evoked the radical changes in the urban circumstances. In processing the industrialization and urban surroundings. This range has enlargened and provided the localism, the function, the purpose with the visual informations. The method of this paper was the spot survey simultaneously the photographing of the mould's size. theme, colour, material, compossitiov. In conclusion, concerning about the artificial and subterranean space, the Wall Environmental Design at Subway Station needs more practial approach in the using the space.

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