• Journal of the Korean Association of Geographic Information Studies
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• v.19 no.4
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• pp.157-168
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• 2016

Change of Zoning Regulations in district unit plans calls for improving development benefits through upzoning rather than harmonious worldwide development. The purpose of this study is to examine the floor area ratio incentive system according to un-zoning in district units plan, and to suggest criteria to secure publicness. In order to derive methods to secure district unit plan publicness in Busan Metropolitan City, the ratio of securing public facilities through upzoning was examined. A comparative analysis of land price rate in the entire city versus the use district suggests that it is possible to secure 10 to 15% of public facilities. In this study, 10% of the project site was applied to secure public facilities, and it produced upgraded publicness.

• Journal of Cadastre & Land InformatiX
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• v.48 no.1
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• pp.215-228
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• 2018

After the housing shortage problem for the youths has invoked substantial social attention recently, Seoul's 2030 Youth Housing Program has been timely improvised and successfully providing the decent rental housing packages for the deprived youths of the City. Its housing supply rate, nevertheless, did not sufficiently catch up with the actual need of the youth group so that the program goal is seen by many to be difficult to readily achieve. In an effort to counteract such adversities, it is seen, in this study, that the clarification of the criteria that judges adjacency condition for up-zoning when a candidate housing site is adjoining to a denser land-use classes could be one effective method to augment its supply rate. This study, in this context, has performed spatial structure analyses via space syntax method against: 1) the conceptual diagram in the City's official manual that renders the acceptable adjacency conditions, and; 2) numerous real-world 2030 Youth Housing cases enlisted in the City's public notices that permit their construction. The consequences are that the axial map is not applicable whereas the convex map is adequate for the purpose at hand, and, among all the cases, those spaces that are adjacent with its Depth of less than 2 are seen to successfully satisfy the official adjacency condition for the up-zoning.

• Journal of Energy Engineering
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• v.22 no.1
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• pp.38-43
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• 2013

There was a dire need to compile data about energy consumption data by use to analyze residential energy consumption patterns relating to changes in lifestyles, or changes in life behavior. Accordingly, bottom-up model for residential energy consumption by residential use was developed by life behavior classification in an attempt to analyze energy consumption. This paper multiplied each appliance's running times by each appliance by life behavior and built a residential bottoms-up model to figure out the energy consumption of each household. The uses by life behavior were broken down into lighting, heating, cooling, entertainment, obtaining information, hygiene, and cooking.

• Journal of Korean Society for Geospatial Information Science
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• v.22 no.1
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• pp.89-99
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• 2014

The current Development Impact Fee (DIF) Zoning Law allows Korean localities to designate the DIF Zone for the areas where there have been up-zoning in land-uses due to any minute additions and/or amendments in the existing clauses or provisions in the National Territory Planning Law as well as all other laws related to urban and regional planning. In reality, however, it is almost impossible to trace the sporadic and infinitesimal changes that might occur in every corner of the statutory clauses of a great number of planning related laws. This study, in an effort to overcome such practical difficulties, tries to chase the time-series zoning alterations in especially the consecutive land-use information layers of the Korea Land Information System (KLIS) as comparable analogues of the outcomes of the amendments in various planning laws. A study locality is chosen among the entire localities in the Capital Region based on the selection criteria dictated by the DIF Zoning Law such as the population- and building permit increase rate. It has been verified that the methodology suggested herein is practically applicable and successfully capable of extracting a number of DIF zones with considerable areal sizes, which could not have otherwise been possible. The consequences of this study, in this context, are expected to contribute to prevent the uncontrolled developments as the DIF Zoning Law itself was originally intended to achieve.

• Information and Communications Magazine
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• v.33 no.3
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• pp.53-65
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• 2016

통합공공통신망 주파수 700MHz(상향: 718~728MHz, 하향: 773~783MHz) 대역에서 국민안전처 주관으로 'PS-LTE 재난안전통신망'구축, 국토교통부 주관 '무선통신 철도제어시스템 LTE-R'구축, 해양수산부 주관 '연안 해상통신망 LTE-M'구축이 추진되고 있다. 동일 주파수 대역을 사용하지만, 서로 다른 용도로 추진되는 3개 공공통신망의 특징을 조사하여 각각의 망이 제공하고자 하는 고유한 기능, 서비스를 만족시키며 동일 주파수 대역에서 공존하기 위한 방안을, 망간 단말 이동 사례와 서비스 연동 시나리오 관점에서 분석하고 3개 공공통신망의 경제적이고 효율적인 망연동 구축방안을 제안한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.5D
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• pp.723-734
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• 2008

In this paper, the problems and betterment plan in operating district units plan are studied by selecting typal case locations based on the types of district units plan of the city of Busan. According to the types, 4 locations of 'type of maintaining preexisting district' and 3 of 'type of managing preexisting district' are selected as case locations, based on a scale and characteristics of each location.In systematical aspects of the case locations, indiscreet upward adjustment of the locations, insignificant participation of the citizens and patternization were recognized as problems. And setting accurate standards for target and range of alteration in line with usage plan of the locations would be necessarily urgent. So through the analysing process of the problems arisen from the case locations I would suggests necessary solutions to improve the effectiveness of the district units plan. And In planning aspects, the similarity between the basic directions and the object, batch-application of the density plan, inadequacy of the usage plan, allocations and patterns of structures, and color planning were recognized to have problematic points. Consequently distinguished specific operating-guidelines would be necessary to achieve the basic directions and the object of district units plan. Furthermore, the building-to-land ratio and floor space index are needed to be exactly calculated through providing accurate and logical standards for appropriate development density of structures.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.11B
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• pp.967-973
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• 2004

DOCSIS and IEEE 802.16 define the usage and element of a MAP which is uplink control message. Standards does not include the details of MAP size and the number of contention slots affecting the performance of MAC protocols for DOCSIS and IEEE 802.16. In this paper, we analyzed the performance of throughput and access delay according to the MAP size and contention slot size. Based on the analytical results, we found the optimal MAP size and the number of contention slots. We found that the protocol shows best performance when the MAP size is 2msec and the number of contention slots is 8. The simulation results can apply to the network system parameters. The simulator can be used to optimize the system parameters in cable network, BWA and WiBro.

• Economic and Environmental Geology
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• v.54 no.5
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• pp.505-513
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• 2021

Recently, housing prices in metropolitan areas is also increasing in the UK and Australia. Their governments are trying to solve this problem by the housing development in the quarry sites near cities. The cases reviewed in this study, Erith Hill Quarry (The Quarry), Plymstock Quarry, Lilydale Quarry (Kinley), and Bombo Quarry are the mixed-used development cases in the closed quarry sites through the urban planning system. In the UK, the local government uses the urban planning scheme such as the planning permit system, section 106. The local government permits the quarry site development on the condition that it provides necessary public facilities, such as schools and affordable housing for the local community. In Australia, local governments use up-zoning permission rights to convert land uses in quarries from industrial to mixed-use. Development plans have to include urban infrastructure and open space in addition to affordable housings. In the case of Australia, establishing a development plan in advance and filling the quarry pit with overburden through a phased development is expected to have the effect of reducing the project cost. Both countries think that developing brownfields, such as quarry sites, is a more sustainable and eco-friendly development from the perspective of future generations than developing new green fields. Such a perspective of the UK and Australia will be able to give policy implications for our slightly rigid urban development system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3879-3887
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• 2014

This paper presents a model to estimate the amount of $CO_2$ emitted by cars in cities. Based on the spatial configuration of street networks, building masses and usages, it first develops a deductive model to combine them in a way to account for $CO_2$ emission amount by cars. It then proceed to validate model behaviours through a series of simulations on some ideal urban settings and finally calibrate it following its real application to the five case study cities in Korea. In contrast to the conventional 'top-down' approaches, we expect our model to have high utilities, particularly in the field of urban planning and design, where we cannot but deal directly with the spatial configuration of urban components and microscopic human activities.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.1007-1011
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• 2009

도시지역에 있어서 홍수피해의 직접적인 원인으로는 외수의 범람에 의한 침수와 내수 배제 불량에 의한 침수피해로 구분할 수 있는데 최근 도시지역에 발생하는 홍수피해의 대부분은 외수의 직접 범람에 의한 피해보다는 각종 수리구조물의 배제능력 부족이나 방류지점에서의 배수위의 영향으로 인한 내수의 배제 불량에 기인한 피해가 증가하는 추세이다. 또한 최근 도시지역에 홍수피해를 유발하고 있는 강우의 특징은 단시간에 많은 강우가 집중하여 발생하는 국지성 집중호우로 단시간 내에 수공구조물의 기능을 마비시킴으로써 침수피해를 가중시키는 경향이 있으므로 배수시설 설계 시 이러한 강우의 특성과 도시유출 특성에 대한 고려가 요구되며 중요 시설물에 대해서는 설계빈도의 상향조정이 필요하다. 본 연구에서는 기존 도시유역에 적용되고 있는 강우-유출모형의 기본이론의 장 단점을 검토하여 본 연구의 목적과 용도에 가장 적합하다고 판단되는 SWMM 모형을 선정하여 적용하였다. 대구 서구 비산 7동 배수구역의 유출모의를 실시한바, 향후 경제적 편익을 고려하고, 정확한 실측 유량자료 값을 산정, 관거 내 유속을 방해하는 토사 등 보다 정확한 관거자료, 모의에 사용하는 각종 매개 변수값의 정확도를 높인다면 인위적인 배수계통을 가지는 도시유역에서의 각종 풍수해에 피해를 최소화 할 수 있는 보다 합리적인 방재대책 수립에 큰 도움을 줄 것으로 판단된다.