• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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• pp.20-36
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• 2001

The purpose of this paper is estimating environmental carving capacity of Seoul Metropolitan Area for a sustainable city management using system dynamics model. A sustainable development requires a society to define sustainability constraints or environmental limits, environmental carving capacity. Environmental carving capacity can be defined as the level of human activity which a region can sustain at an acceptable quality of life level. This concept of environmental carving capacity has several important application to sustainable city planning and management. If the limitation of a human activity can be supported by a scientific data on carving capacity, the resulting decision and actions could more easily win public support for a sustainable development. However, one of the key issues is how to operationalize the carving capacity. In this paper, the environmental carving capacity was operationalized as a maximum number of industry structure, population, and housing that can sustain certain level of environmental quality of Seoul Metropolitan Area. The model developed in this paper consisted off sectors: population, housing, industry, land, and environmental sector. The model limits its main focus on the NO$_2$level of ambient air of Seoul. Carving capacity Seoul Metropolitan Area was estimated by figuring out the maximum number of population, industry structure, housing at an equilibrium point that sustain a desirable NO$_2$level. Based on the model estimation, several policy implications for a sustainable city management was discussed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 추계학술대회 논문집
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• pp.976-981
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• 2005

The Seoul subway line No.2 is the one of the busiest metro service line of the passenger transportation in Seoul metropolitan city. The number of the passengers served by the Seoul subway line No.2 is more than 1.9 million in a day according to the transportation reference of 2004, which is about $15\%$ of the whole population in Seoul metropolitan city. This is the reason why the Seoul Metropolitan Subway Corporation(SMSC) is implementing the refurbishment of the current ATS signalling system of Seoul Line No.2 into the most advanced ATO system with the continuous air-gap telegram transmission through the track circuit without any suspension of the train service either in when or in where, which is the first in the world in its attempt to refurbish the old signalling system under service without any suspension of the train operation.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.19-20
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• 2015

Since 2013, Seoul Metropolitan Government (SMG) has introduced big data initiatively in administration and put into practices in transportation, safety, welfare in order to overcome limited resources and conflicting interests. For establishing a new midnight bus service, SMG prepared optimized midnight bus routes by analyzing big data from mobile phone Call Data Record (CDR) through collaboration with a telecommunication company. Despite of limited budget and resources, newly identified routes can cover over 42% of the citizen with 9 routes and less than 1% of buses compare with day time operation. In addition to solve transportation problem, SMG utilizes big data to resolve location selection problem for choosing new facility locations such as life double cropping centers and senior citizen leisure centers. As results, SMG demonstrates big data as a good tool to make policies and to build smarter city by overcome space-time limitation of resources, mediation of conflicts, and maximizes benefit of the citizen.

• 인터넷정보학회논문지
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• 제24권5호
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• pp.97-106
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• 2023

Citizens' demand for public CCTVs continues to rise, along with an increase in variouscrimes and social problems in cities. In line with the needs of citizens, the Seoul Metropolitan Government began installing CCTV cameras in 2010, and the number of new installations has increased by over 10% each year. As the large surveillance system represents a substantial budget item for the city, decision-making on location selection should be guided by reasonable standards. The purpose of this study is to improve the existing related models(such as public CCTV priority location analysis manuals) to establish the methodology foranalyzing priority regions ofSeoul-type public CCTVs and propose new mid- to long-term installation goals. Additionally, using the improved methodology, we determine the CCTV priority status of 25 autonomous districts across Seoul and calculate the goals. Through its results, this study suggests improvements to existing models by addressing their limitations, such as the sustainability of input data, the conversion of existing general-purpose models to urban models, and the expansion of basic local government-level models to metropolitan government levels. The results can also be applied to other metropolitan areas and are used by the Seoul Metropolitan Government in its CCTV operation policy

• 대한지리학회지
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• 제42권6호
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• pp.930-939
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• 2007

이 논문의 목적은 부산의 인구 감소가 수도권으로의 인구유출에 의한 결과일 뿐만 아니라 부산의 교외화에 의한 결과임을 밝히는 것이다. 이를 위해 7대도시 및 부산권의 인구와 가구, 그리고 시도간 및 부산권의 인구이동을 분석하였다. 주요 결과는 다음과 같다. 첫째, 부산은 서울, 대구 등 우리나라의 다른 대도시와 유사하게 인구 감소 경향을 보이고 있다. 둘째, 부산의 인구가 감소하고 있음에도 불구하고, 가구는 지속적으로 증가하고 있다. 셋째, 부산의 인구는 수도권뿐만 아니라 부산권으로도 다수 유출되고 있으므로, 부산의 인구 감소를 수도권으로의 인구유출로만 해석하는 시각은 옳지 않다. 넷째, 부산의 인구는 부산권 내의 인접한 도시로 주로 유출되고 있으며, 따라서 부산의 인구 감소는 부산의 교외화, 즉 부산권의 성장으로 해석될 수 있다.

• 한국물환경학회지
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• 제32권5호
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• pp.410-418
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• 2016

This study was conducted to improve the analysis method used for N-nitrosamines and to investigate the occurrences of N-nitrosamines in tributaries of the Han-river, intake stations, water treatment plants and tap water used within the city of Seoul. The samples were pretreated through a solid phase extraction and analyzed using a gas chromatography tandem mass spectrometer (GC-MS/MS). The GC-MS/MS in CI mode was compared with the GC-MS/MS in EI mode by the method detection limits (MDLs). MDLs by GC-CI/MS/MS and GC-EI/MS/MS were 0.2 ~ 1.1 ng/L and 0.2 ~ 1.4 ng/L, respectively. Samples were collected from ten tributaries of the Han-river (T1 ~ T10), six intake stations (I1 ~ I6), six water treatment plants (P1 ~ P6) and 25 taps in Seoul city. The maximum levels of N-nitrosodimethylamine (NDMA) were 0.013 μg/L, 0.008 μg/L, 0.006 μg/L and 0.002 μg/L in tributary water, raw water, finished water and tap water samples, respectively. Detected levels were much lower than 0.1 μg/L corresponding to the guideline value of WHO.

• 대한산업공학회지
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• 제42권2호
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• pp.96-111
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• 2016

Effort to reduce energy consumptions or CO2 emissions is global trend. To follow this trend, spatial studies related to characteristics affecting energy consumptions or CO2 emissions have been conducted, but only with the focus on spatial dependence, not on spatial heterogeneity. The aim of this study is to investigate spatial heterogeneity patterns of CO2 emission based on socio-economic factors, land-use characteristics and traffic infrastructure of Seoul city. Geographically Weighted Regression (GWR) analysis was performed with 423 administrative district data in Seoul. The results suggest that population and employment densities, road density and railway length in most districts are found to have positive impact on the CO2 emissions. Residential and green area densities also have the highest positive impact on CO2 emissions in most districts of Gangnam-gu. The resulting model can be used to identify the spatial patterns of CO2 emissions at district level in Seoul. Eventually it can contribute to local energy policy and planning of metropolitan area.

• 보건의료산업학회지
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• 제7권3호
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• pp.287-296
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• 2013

The aim of this study was to compare the regional difference of death from intentional self-harm. The analysis was based on data of intentional self-harm deaths (31,450) from the 2010-2011 vital statistics of Korea. The suicide rate (per 100,000 population) was 46.2 in male and 22.3 in female. Gender ratio (male / female) of suicide rate was 2.07, and Jeju province had the lowest gender ratio (1.82), and Chungbuk province had the highest gender ratio (2.42). In the age-gender standardized death rate (per 100,000) of self-harm by region, the highest suicide rate was observed in Gangwon province (44.8) and Chungnam province (44.3), and the lowest in Seoul metropolitan city (28.9) and Ulsan metropolitan city (29.2). There was a significant increase in the rate of suicide in city areas (odds ratio: 1.11, 95% CI: 1.08-1.13), county areas (1.62, 1.56-1.67) as compared with the rate of suicide in metropolitan areas. The commonest methods of suicide were hanging (53.7 percent), self-poisoning by pesticides (16.8 percent) and jumping from a height (14.3 percent). The methods used for suicide differed between rural (county) and urban areas (metropolitan city and city). In county areas, 43 percent of suicides used pesticides as compared to only 7-18 percent of those in urban areas. In urban areas, jumping was more common (13-17 percent vs. 6 percent). There were no difference in hanging between urban and rural areas. The odds ratio of death by pesticides was 9.86 in rural areas compared with death rate of metropolitan areas. The odds ratio of death by jumping was 0.59 in rural compared with death rate of metropolitan areas.

• 대한지리학회지
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• 제38권4호
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• pp.562-574
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• 2003

이 연구는 아주 최근에 새롭게 제기된 세계도시지역론을 고찰하고 이에 기초하여 한국의 지역발전 정책을 위한 함의를 제안하고 있다. 세계의 주요한 거대도시지역으로. 이루어진 정치ㆍ경제적 조직체 또는 다중심적 구조를 지닌 새로운 규모의 도시조직으로 정의되는 세계도시지역은 세계경제의 역동적인 성장뿐만 아니라 지역발전도 동시에 유발함으로써 세계화시대에서 대안적인 신지역주기 발전모델로 평가된다. 한국에서 세계도시지역모델의 정책적 적용은 특히, 비수도권의 거대도시지역의 세계적 경쟁력 강화와 수도권과 비수도권 간의 극심한 지역격차를 완화하기 위해서 필요시 된다. 그러나 부산, 대구, 광주, 대전 등의 비수도권의 광역시가 세계도시지역으로 발전하기 위해서는 시ㆍ도 통합과 지방분권과 같은 제도개혁이 선행되지 않으면 안 된다.

• 지역연구
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• 제38권4호
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• pp.31-44
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• 2022

본 연구는 당해도시와 연담도시권 내 도시들의 특성과 단위면적(m²)당 아파트 거래가격 간의 상관성을 확인하는 목적을 가지고 수행되었다. 구체적으로 당해 도시 및 연담도시권 내 도시들이 인구 특성. 산업 특성, 도시계획사업 및 개발사업 특성, 입지적 특성이 아파트 m²당 매매가격 형성의 원인으로 작용하는지, 당해도시와 연담도시 간에 차별적인 특성을 보이는지 또한 수도권과 비수도권 간에 차별적인 특성을 보이는지를 상관분석, 다중회귀분석을 통해 파악하고자 하였다. 인구특성 부문에서는 모두 상관성이 있는 것으로 나타났다. 산업부문과 도시계획사업 및 개발사업 특성 부문은 당해도시에서는 유의하지 않게 나오지만, 연담도시권으로 분석하여 볼 때, 유의하게 나타나는 것으로 된다. 수도권과 비수도권으로 분류하여 분석하여 볼 때, 인구 부문은 수도권 및 비수도권 모두 유의하게 나타나며, 입지적 부문에서는 강남구와의 거리만이 유의하게 나타난다. 이는 지금 수도권으로 인구가 집중되기 때문에 아파트 m²당 매매가격도 수도권 집중으로 높은 가격대를 형성하는 것으로 이와 같은 결과가 나타나는 것으로 판단된다. 본 연구는 아파트 m²당 매매가격에 영향을 미치는 요인을 분석할 때, 당해도시 뿐 아니라 인접 지역들의 특성을 같이 분석하여야 한다는 결과를 보여주며, 또한 부동산 정책을 실시할 때에도 당해도시 뿐 아니라 연담도시권으로 설정하여 주택시장 모니터링이 함께 이루어질 필요가 있다는 점을 시사한다.