직장인의 차량보유 결정요인 및 통근수단 선택행태 분석

강수철(姜秀喆),남승용(南勝龍),김만배(金萬培) 한국정책과학학회 2009 한국정책과학학회보 Vol.13 No.1

본 연구에서는 날로 심각해지는 교통혼잡에 대한 대책마련의 일환으로 차량을 보유하는 요인은 무엇인가와 출근형태별로 어떤 교통수단을 선택하는가에 대하여 실제 정기적으로 통근을 하는 직장인을 대상으로 설문조사를 통해 분석하였다. 자가용 차량을 보유하는 요인으로는 연령, 소득 등이 유의한 결과를 나타냈고, 출근형태별 차량보유확률에서는 외곽에서 서울로 통근하는 경우와 외곽에서 외곽으로 통근하는 경우가 서울에서 서울로의 통근에 비해 차량을 보유 할 확률이 높았는데, 그 가운데서도 외곽에서 외곽으로 통근하는 경우가 차량보유 확률이 가장 높았다. 출근형태별 교통수단 선택 행태에 관한 다항 로짓분석 결과 서울에서 서울로의 출근의 경우 자가용보다는 대중교통을 이용할 확률이 높았다. 서울에서 외곽으로 출근하는 경우와 외곽에서 외곽으로 출근하는 경우에는 대중교통보다는 자가용을 선택할 확률이 높았으며, 외곽에서 서울로 출근하는 경우에는 자가용보다는 대중교통 선택확률이 높았으나 통계적 유의성은 없는 것으로 나타났다. This study explores the determinants of car ownership as part of preparing against traffic jams which is getting worse everyday and the mode choice classified by how people go to work. This is investigated by using a survey of office workers who go to work regularly. The reliable determinants of car ownership were age and income, etc. Also, regarding the probability of car ownership classified by how people go to work, the probability of people who go to work from outside of Seoul to inside of Seoul and from outside of Seoul to other places which are not Seoul were higher the one which people go to work from Seoul to Seoul. Especially, the probability of car ownership of people who went to work from outside of Seoul to other places was the highest. The type of travel mode choice is investigated by using multinomial logit regression which is commonly used for investigating discontinuous decision making. As a result, the probability of using public transport was higher than the one of using own cars for the people who went to work from Seoul to Seoul. Also, probabilities to choose own cars were higher than the one to choose public transport for the people who went to work from both Seoul and outside of Seoul to other places outside of Seoul. The probability of using public transport was higher than using own cars for the people who went to work from outside of Seoul to Seoul but the statistical significance was poor.

교통안전투자효과의 성별, 연령별 차이 분석

강수철;김만배 경찰대학교 2011 경찰학연구 Vol.11 No.4

도로교통 안전분야에 투자되는 예산분야는 일반적으로 교통안전시설분야(Engineering), 교통단속분야(Enforcement), 교통안전교육 및 홍보분야(Education)의 3가지로 구분하고 있으며, 이것을 3E 정책이라 한다. 본 연구에서는 이러한 항목별 투자가 도로교통사고 감소에 어느 정도의 영향을 미치는 가에 대해 패널분석을 통해 추정하고자 하였다. 종속변수는 교통사고 건수, 사망자, 부상자수로 구분하였고, 설명변수로는 기존 연구에서 주로 이용되었던 인구, 자동차등록 대수, 도로연장거리에 본 연구의 주된 관심사인 교통안전시설투자예산, 교통안전교육 및 홍보예산, 단속건수를 15개 지방자치단체의 지역자료와 1992년부터 2007년까지의 연도별 자료를 사용하였다. 전체 교통사고를 종속변수로 한 분석결과 동일한 투자액에 대비하여 교통안전교육 및 홍보투자가 시설투자에 비해 효과가 큰 것으로 분석되었다, 또한 성별, 연령별로 교통안전투자의 효과가 뚜렷한 차이를 보였는데, 이러한 특성에 따른 특화된 투자정책의 필요함을 시사하고 있다. There are so many investment budget drafts in the filed of a road traffic safety. The three fields of them, First, traffic safety facility(Engineering), second, traffic enforcement(Enforcement), last, a traffic safety education & public relation(Education). We call it the fileds as a 3E policy for reference. The study shows that how much the investment by the 3E policy affects the traffic accidents via panel analysis. The analysis method is estimated via a panel analysis by using the local materials of 15 local governments and the annual materials from 1992 to 2007. All traffic accidents, the same investment as the dependent variable in an analysis prepared by the traffic safety education and public relation investment in facilities investment to be greater than the effects are analyzed, In addition, the apparent difference appears in the effect of Traffic Safety Investment by gender and age, and it suggests that the special investment policies need in terms of respective characteristics.

Closedness of the Inversely Bounded Operators

姜秀哲 관동대학교 1992 關大論文集 Vol.20 No.2

각주 콘크리트 공시체의 크기 효과에 관한 연구

강수철,은희창 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.1

The strength of concrete for design or core concrete for destructive test depends on several parameters including the size and type of specimen. The Korean and European Standard take φ15×30 cylindrical and 15cm cubic specimens for measuring the concrete strength, respectively. There have been rare attempts to decide the relationships according to the shape and size of squared specimens. Especially, it is incorrect to use the existing data due to the different material properties in Cheju from the others. Therefore, in this experimental study, we investigate the relationships and compare with the existing results. The experimental results will be utilized to grasp the material and mechanical characteristics of concrete in Cheju.

Inverse Boundedness of Adjoint Operators

姜秀哲 관동대학교 1993 關大論文集 Vol.21 No.2

역유계선형작용소의 합성

姜秀哲 관동대학교 1998 關大論文集 Vol.26 No.2

In this paper we show that the composition of inversely bounded operators is inversely bounded under the condition onto, and consider some relations between inversely bounded operators and bounded below operators.

市販 種子類 生藥中의 脂肪酸 含量에 關한 硏究

姜壽鐵,文永熙 조선대학교 약학연구소 1985 藥學硏究誌 Vol.7 No.1

This experiment was carried out to investigate oil content and the composition of fatty acid in 17 seed drugs by Soxhelt method and gaschromatography. This investigation was aimed at obtaining the relations with medicinal effect in seed drugs. 1. Crude oil content was contained more than 40% in Torreyae Semen, Armeniacae Semen, Persicae Semen and Thujae Semen and less than 10% in Nelumbinis Semen, Cassiae Torae Semen, Cuscutae Semen, Plantaginis Semen, Coicis Semen and Amomi Semen. 2. Linoleic acid content(Essential Fatty acid) was the highest in the composition of fatty acid in Cuscutae Semen, Pasoraliae Seman and Nelumbinis Semen with a tonic. 3. Armeniacae Semen, Persicae Semen nd Torreyae Semen seemed to be valuable as resource of oil, since they contained a higher oil and the composition of suitable fatty acid. 4. A content of unsaturated linolenic acid was a higher(21.7%) in Cannabis Semen. 5. Crotonis Semen contained a higher(20.6%) eicosenoic acid in long-chain but other seed drugs contained a little.

각주 콘크리트 공시체의 크기 효과에 관한 연구

강수철,은희창 濟州大學校 産業技術硏究所 2000 산업기술연구소논문집 Vol.11 No.1

The strength of concrete for design or core concrete for destructive test depends on several parameters including the size and type of specimen. The Korean and European Standard take 415x30 cylindrical and 15 an cubic specimens for measuring the concrete strength, respectively. There have been rare attempts to decide the relationships according to the shape and size of squared specimens. Especially. it is incorrect to use the existing data due to the different material properties in Cheju from the others. Therefore. in this experimental study, we investigate the relationships and compare with the existing results. The experimental results will be utilized to grasp the material and mechanical characteristics of concrete in Cheju.

On Relations between Uniform Continuity and Compactness in Metric spaces

姜秀哲 관동대학교 1984 關大論文集 Vol.12 No.2

경찰의 교통사고 처리비용 추계 개선방안에 관한 연구

강수철,조성근,심재익 한국교통연구원 2014 交通硏究 Vol.21 No.3

Traffic accidents incur serious personal injury and property damage, social cost, etc. Since 1992, the cost of traffic accidents has been used to prioritize investment of transportation safety projects and to advertise seriousness of traffic safety in policy data. The cost of traffic accidents includes the direct damage and accident processing cost for law enforcement and has been estimated as a social cost. However, the cost of accident processing by traffic police has various problems not addressed including the omitted cost of the first investigation and the segmentation of injury accidents. The total traffic accident process cost was fixed previously because of government budgets last year. In this study, a social improvement plan is devised and a new method for estimating accident processing costs for law enforcement is detailed. The traffic accidents processing cost for the police show 247.5 billion won for road traffic accidents. This is somewhat different with the 313.5 billion won derived by the conventional method in 2012. 39.3 billion won was missed in the record, as the first responders investigation and the traffic investigation cost is 208.2 billion won. 도로교통사고는 인적, 물적피해 등 심각한 사회적비용을 발생시킨다. 이로 인해 1992년부터 교통사고비용의 추계를 통해 교통안전사업의 투자우선순위 결정은 물론 교통안전의 심각성을 홍보하는 정책자료로 활용하여 왔다. 또한 교통사고비용에는 직접적인 피해와 더불어 경찰의 사고처리비용과 같은 간접적인 비용도 포함되며, 이를 사회기관비용으로 추계해 왔다. 그러나 기존의 교통경찰 사고처리비용에는 초동조사비용의 누락, 부상사고의 세분화가 이루어지지 않았던 점, 교통사고처리비용이 전년도 예산액에 의해 전체금액이 고정되어 있는 점 등의 문제점을 가지고 있었다. 따라서 본 연구에서는 이러한 문제점에 대한 개선방안을 도출하고 새로운 방법으로 경찰의 사고처리비용을 추계하여 제시하였다. 2012년 도로교통사고에 있어 경찰의 교통사고처리비용은 2,475억 2,124만 2,211원으로 나타나 기존 방법에 의해 도출한 3,134억 5,778만 4,924원과는 다소차이가 있었으며, 이를 세분화하면 기존의 연구에서 누락된 초동조사비용이 393억 3,926만 9,671원이었고, 사고조사비용이 2,081억 7,197만 2,540원이었다.