• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.6D
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• pp.697-705
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• 2010

The purpose of this research is to clarify the relation between environmental consciousness and railway usage behavior. Author would locate this research on position of basic survey to promote railway use according to Low Carbon Green Growth policy in Korea. In this research, we would perform descriptive analysis using data of research on the actual condition of railway use in 2008, Daegu, and describe its relationship. In addition, we would suggest some idea about policy which can promote railway use. The order of railway choice behavior noticed in clustering of environmental consciousness was cooperative behavior type, middle type and non-cooperative behavior type. It suggests that environmental consciousness has effect on transportation choice behavior. Specially, railway improvement isn't enough to promote railway use. And, it is advisable to carry out the improvement in such a way that it may encourage the nation to move from the current environmental consciousness stage to cooperative behavior. Moreover, we assumed Binary Probit(BP) model using SP data of time or condition of transportation expense compared with passenger car and bus. As the results, modified likelihood ratio of two BP models is favorable variables. And it occurred that mode was transferred from passenger car to railway when it showed higher social environment consciousness and low selfish environment consciousness, because t-statistic which represents selfish environment consciousness showed significance in 95% confidence level. That is, it can be described that environment consciousness affect on the intention of railway use.

• Environmental and Resource Economics Review
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• v.11 no.4
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• pp.609-632
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• 2002

국민소득이 빠르게 증가함에 따라 1990년대 이후 가정용 난방연료의 소비구조 역시 크게 변화하고 있다. 본 연구는 에너지 및 교통수요분석에 많이 사용되는 Multinomial Probit 모형을 이용하여 가정용 난방연료의 선택 행태를 분석하였다. 모형의 추정방법으로는 베이지안(Baysian) 방법론에 의한 Gibbs Sampling기법 (McColluch et al., 2000)을 이용하여 Multinomial probit 모형에서 선택대안이 3개 이상일 경우 발생할 수 있는 추정상의 어려움을 극복하였다. 한국가구패널조사(KHPS) 자료를 이용하여 서울과 경기도 대도시 지역을 대상으로 분석한 결과, 석유와 천연가스가 연탄에 비해 더 밀접한 상호 대체관계를 가지고 있는 것으로 나타났다. 또한 소득이 높은 가구일수록 천연가스에 대한 선호도가 더 높은 것으로 나타나서 향후 공급망 확대에 따라 난방연료용 가스 소비가 더욱 늘어날 것으로 예상된다.

• The Safety technology
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• no.204
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• pp.21-23
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• 2014

경기권 교통의 중심축 역할을 담당하고 있는 안산. 현재 안산에는 반월 시화공단 등 각종 산업단지가 밀집해 있는 것은 물론 서울 도심과 거리가 가깝다는 이유로 주거지역도 다수 들어서 있다. 특히 안산지역에는 최근 들어 재개발 개건축도 한창인데, 오늘의 주인공인 두산건설이 야심차게 건설하고 있는 '안산 초지 두산위브' 현장은 단연 수요자들의 이목을 끌고 있다. 이미 잘 갖춰진 안산 구도심의 인프라는 물론 주변의 화랑유원지 등이 형성돼 있어 새로운 주거타운으로 각광을 받고 있는 것이다. 특히 이곳은 지하철 4호선 안산역, 초지역과 맞닿아 있고 영동고속도로, 서해안고속도로 등의 진입이 용이하다는 장점도 있다. 더욱이 이곳 현장은 두산건설이 안산지역에 최초로 진출한 재건축 현장이라는 남다른 의미도 있다. 때문에 이곳 현장에서는 안전관리에 무엇보다 많은 심혈을 기울이고 있다. 작은 사고로도 이와 같은 명성에 오점을 남길 수 있기 때문이다. 안전관리의 기본과 원칙을 철저하게 준수해 무재해를 실현하고 있는 이곳 현장을 찾아가 봤다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.1D
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• pp.25-32
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• 2009

Currently, various types of TDM (Transportation Demand Management) policies are being studied and implemented in an attempt to overcome the limitations of supply oriented policies. In this context, this paper addressed issues of effectiveness and possible domestic implementation of the HOT lane. The possible site of implementation selected for this simulation study is part of the Kyung-bu freeway, where a dedicated bus lane is currently being operated. Minimum length of distance required in between interchanges and access points of the HOT lane for vehicles to safely enter and exit the lane, and traffic management policies for effectively managing the weaving traffic trying to enter and exit the HOT lane were presented. A 5.2km section of freeway from Ki-heuing IC to Suwon IC and a 8.3km section from Hak-uei JC to Pan-gyo JC have been selected as possible sites of implementation for the HOT lane, in which congestion occurs regularly due to the high level of travel demand. VISSIM simulation program has been used to analyze the effects of the HOT lane under the assumption that one-lane HOT lane has been put into operation in these sections and that the lane change rate were in between 5% to 30%. The results of each possible scenario have proven that overall travel speed on the general lanes have increased as well by 1.57~2.62km/h after the implementation of the HOT lane. It is meaningful that this study could serve as a basic reference data for possible follow-up studies on the HOT lane as one effective method of TDM policies. Considering that the bus travel rate would continue increase and assuming the improvement in travel speed on general lanes, similar case study can be implemented where gaps between buses on bus lane are available, as a possible alternative of efficient bus lane management policies.

• Korean journal of applied entomology
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• v.18 no.1 s.38
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• pp.43-48
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• 1979

This study was conducted to detect lead which is exhausted with gas from running automobiles and is considered to accumulate in cropping lands. Soil samples were taken from uplands and paddy fields with different distance from highways. atonic absorption spectrophotometer was applied for analysis. Results obtained are summarized as follows: 1. In the areas of Seoul toll gate and Jookjeon, Gyeonggi province, soils of fields within $3\~5$ meters from highway appeared to contain $11\~110\;ppm$ of lead. On the other hand, soils outside of $3\~5$ meters showed only natural background level of lead. 2. The maximum concentration of lead in Hwoedeuk area (Choong-nam p개vince) was 16.3 ppm and those of Kimhae and Dongrae areas were about 12 ppm. Low concentration of $1\~4\;ppm$ was observed in the areas, south of Daejeon along the Honam and Namhae highways. 3. Lead seemed to accumulate in the soil surface within the range of 0 to 5 centimeters which anable to expect little translocation to deeper layer of the soil. 4. lost of arable lands locates at least 15 meters apart from highways so that lead concentrations were lower than expected. No damage could be speculated with the present concentration of lead analyzed. This does not deny the necessity to the long term dectect of the possible pollutant.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.1681-1698
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• 2011

According to the demands of the times, Inchon international airport railroad opened up step by step but It is situation that much government subsidies are paid because It does not competitive power with road traffic by decline of schedule speed. Inchon international airport railroad users will convert by other transportation and minimize damage their time as travel time is prolonged. Therefore, need high speedization of airport railroad, this may act big role competitive power security as well as airport railroad activation with another public transportation. Thus, this paper suggests that a high speedization possibility section in the sections of airport railroad and train speed elevation effect analysis by roadbed, railroad, system improvement and the most efficient operation intervals analyzing each vehicles (AREX (120km/h), KTX (230km/h), EMU(Electric Multiple Unit, 180km/h) train running pattern.

• Journal of Korean Society of Transportation
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• v.32 no.6
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• pp.662-674
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• 2014

In this study, accident frequency prediction models were constructed by collecting variables such as geometric structures, safety facilities, traffic volume and weather conditions, land use, highway design-satisfaction criteria along 780km (4,372 sections) of 4 lane-highways over 8 areas. As for models, a fixed parameter model and a random parameter model were employed. In the random parameter model, some influences were reversed as the range was expressed based on specific probability in the case of no fixed coefficients. In the fixed parameter model, the influences of independent variables on accident frequency were interpreted by using one coefficient, but in the random parameter model, more various interpretations were took place. In particular, curve radius, securement of shoulder lane, vertical grade design criteria satisfaction showed both positive and negative influence, according to specific probability. This means that there could be a reverse effect depending on the behavioral characteristics of drivers and the characteristics of highway sections. Rather, they influence the increase of accident frequency through the all sections.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.725-733
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• 2018

With urbanization projects involving trunk roads progressing, many simple interchanges, which separate passing traffic into the main traffic and access subtraffic, are being constructed to maximize the traffic capacity. Under the current Road Connection Rule, the access-prohibited section in an interchange is determined based on the access lane and limit distance in the complete interchange road, but separate criteria for the simple interchange are not defined. This may cause confusion in the Road Management Office's determination of the access-prohibited section in the simple interchange, or lead to the application of the criteria for the access-prohibited section in the complete interchange without considering the features of such interchange. This study conducted a comparative analysis of the domestic and overseas systems related to the installation of access section in trunk roads, such as general national roads. This paper presents a survey of the methods for applying the access-prohibited section in the interchange along with the actual cases and proposes improvement measures for a rational calculation of the access prohibited installation section in the simple interchange to minimize the downsides associated with the application of the extremely strict criteria. The proposed road connection rule improvement measures based on the consideration of the purpose of installing the simple interchange and on the consideration the features of the simple interchange are expected to prevent administration confusion by the field road management offices as well as the waste of unnecessary efforts and costs by petitioners so they can boost the service satisfaction for people and the administrative reliability.

• 대한예방의학회:학술대회논문집
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• 2001.04a
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• pp.39-49
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• 2001

전염병 정보화사업은 1995년 콜레라의 집단 발병을 계기로 1996년부터 추진되었다. 교통의 발달과 국제교류의 증가는 전염병의 전파와 확산속도가 빨라져 국민건강을 위협하고 있으며 기존의 수작업만으로 정보수집 및 효율적인 전염병관리가 어려워 체계적이고 효율적인 전염병관리를 위하여 국가적 D/B 구축, 전염병관리의 의사결정지원자료 축적의 필요성 제기되었으나 독자적인 망 구축에는 막대한 예산이 들고 망의 운영과 유지관리를 위한 예산과 조직의 한계가 있는 상황에서 콜레라 발생을 계기로 보건복지부 방역과, 국립보건원, 국립서울 검역소, 경기도 6개 보건소 및 경기 및 인천 보건환경연구원을 실험적으로 연계하여 전염병 관리에 필요한 정보의 내용과 흐름, 자료 관리를 위한 기관별, 자치단체별 역할과 기능 등에 관한 개념 정립 둥 전산개발과 함께 제도정비 방안 등이 동시에 수행되었다. 이러한 실험과 연구 결과를 토대로 1998년부터 인터넷을 활용한 전염병의 신고 보고, 전염병관련 자료의 D/B를 통한 전염병의 발생 예측, GIS 등 전염병에 관한 모든 정보를 제공할 수 있는 portal site 구축을 위한 2단계 정보화사업이 정보통신부 지원 하에 시도되었다. 약 2년간의 작업 결과 전염병관리의 전산화 가능성이 확인된 후 전염병예방법을 개정하여 전산 보고의 제도적 틀을 만들고 2000년 8월부터 법정전염병은 전산 보고가 이루어 지고 있다. 일방적이 보고이외 전염병관리의 쌍방화를 위하여 각종 지령/정보의 전파, 각종 통계, 지침, 교육자료, 전염병관련 논문 등을 제공하고 있으며, 상담, 민원접수는 전염병 관련 정보의 전문화와 함께 국민과 호흡할 수 있는 시스템으로 운영될 수 있도록 설계하였다. 그러나 현재 사용하고 있는 WEB EDI가 가진 속도 문제, 응용프로그램의 문제로 신고 보고를 C/S 버전으로 전환하여 사용자의 편리성을 증진하고 있다. 또한 예방접종자료의 전산화를 통한 이상반응 관리, 접종주기 관리, 예방접종으로 관리할 수. 있는 전염병관리(Vaccine preventable disease), 학교에서 발생하는 전염병의 감시 등 전염병 포탈 사이트에 걸맞게 정보 내용을 한층 확대하고 있고 일선의료기관도 활용할 수 있는 시스템으로 발전시키고 있다. 이를 위하여 정보관리과도 신설하였다. 그러나 전염병관리의 전산화는 궁극적으로 전염병 자료의 지역화와 그를 통한 전염병관리의 분권화 및 지방자치화를 이루고자 하는 것이다. 기술적인 측면에서 전산망은 쉽게 만들 수 있으나 전염병관리의 개선과 그 정착은 1-2년간의 전산프로그램개발 작업만으로 달성되기는 어려우며 범국가적인 노력과 더불어 일선보건요원의 교육과 훈련 및 보건소장 등 보건관리자의 전산마인드 개발 등의 작업도 매우 중요할 것으로 사료된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2837-2843
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• 2015

This study firstly finds the factors for positive development of urban regeneration cases from the point of view of a public sector, and then analyzes the development potential of Urban Regeneration Projects in Gyeonggi-do through the methodology able to measure the development potential objectively. The process to analyze the development potential is as follows. First, after finding indices through literature review, indices with redundancy and similarity are drawn by the discussion with relative experts. Second, four clusters and twelve indices are drawn by the verification of experts. Finally, criticality analysis of indices are analyzed by ANP. According to the result to apply criticality analysis of indices to urban regeneration cases, factors related to residential environment and local economy influence development potential more than those related to infrastructures and land-use.