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박병호,류승옥,박정순,한상욱 대한교통학회 2007 대한교통학회지 Vol.25 No.6
본 연구는 고속도로 교차점의 유형과 교통사고와의 관계를 다루고 있다. 본 연구의 목적은 교통사고가 교차점의 유형과 기하구조 설계요소에 따라 다르게 나타날 수 있다는 가설을 검증하는데 있다. 연구의 주요 결과는 다음과 같다. 첫째, JCT와 IC 그리고 트럼펫 IC와 기타 유형의 IC 간의 사고 비교는 의미를 갖지 못하지만, 트럼펫 IC의 네 가지 유형별 차이는 의미가 있는 것으로 분석되었다. 즉 BO 형태의 트럼펫 IC는 타 형태의 트럼펫 IC보다 월등히 많은 교통사고를 나타내고 있다. 둘째, 가설검정을 통해 본선과의 교차각은 가능한 직각으로 설계하고 연결로 교통량이 많지 않은 한 1차로로 설계하는 것이 바람직하다고 나타났다. 이러한 연구결과는 장래 고속도로의 설계에서 보다 안전한 인터체인지의 유형결정과 기하구조 설계에 반영될 수 있는 방향을 제시할 수 있을 것으로 기대된다. 도로 안전 측면에서 가능한 BO 형태의 인터체인지는 도입하지 않고, 교차각을 90°가 되도록 설계하되, 인터체인지의 경우 연결로 교통량이 아주 많지 않다면 1차로로 설계하는 것이 바람직한 것으로 판단된다. This research deals with the relations between intersection types and traffic accidents in the case of Korean expressways. The purpose of this research is to test the hypotheses that traffic accidents depend on intersection types and geometric design elements. The main research results are as follows. First, the accident comparisons that are drawn from junctions with interchanges, and trumpet interchanges with other types of interchanges respectively displays no significant meaning. However, the differences among four types of trumpet interchanges are found to be meaningful. In other words, the BO type trumpet interchanges seem to have far more traffic accidents than other types of trumpet interchanges. Second, hypothesis tests show that approximately 90 degree and one lane connection roads have lower accident rates. Based on this research, the following directions can be suggested for the safer types of intersections and geometric design elements in freeway construction. From a road safety point of view, it is advisable not to introduce BO type interchanges. It is also desirable that the intersection angle should be approximately 90 degrees. Furthermore, it would be wise to design one lane roads if the connection road has low traffic volumes.
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박병호,류승옥 한국지역개발학회 2002 韓國地域開發學會誌 Vol.14 No.1
This study deals with the relations between type of trumpet interchanges and traffic·accident rate. In pursuing the above, this study gives particular attentions to surveying the accident data and geometric characteristics of interchange, and analyzing the relationships between two factors. Main results are the followings. First, the Trumpet type B using the under-pass system has the highest accident rate among 4 different types. This can be explained by the factor that the type B has the rapid change of speed in the junction area from the main line to the loop of interchange. Second, the multiple regression analyses show that each type of trumpet interchange has the different independent variables. This can be explained that each trumpet interchange has the different accident characteristics.
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김태희,양기숙,류승옥 숙명여자대학교 약학연구소 1996 약학논문집-숙명여자대학교 Vol.12 No.-
Hemipteleae davidii(Ulmaceae) is a tree which is widely distributed in Korea and China. It has been used as treatment of cancer, diuretic, tuberculosis, anti-inflammatory agent in folk remedies. Lipid peroxide is associated with aging, diabetes, mutation and cancer. Therefore acute toxicity, carrageenin edema, anti-lipid peroxidation effect are examined. MeOH Ex. has none toxicity and show significant anticarrageenin action by dose dependence. Chloroform and ether fractions show potent inhibition of lipid peroxidation in vitro and in vivo. Butanol fraction in vitro, water fraction in vivo by does dependence had significant inhibition.
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박병호(Park, Byung-ho),류승옥(Ryu, Seung-ok) 한국지역개발학회 2006 韓國地域開發學會誌 Vol.18 No.2
This research de떠 s with the traffic accident of intersection in the case of Korea expressway. The purpose of this research is to analyze the hazardous locations and to clarify the reasons why they are dangerous. In pursuing the above, 195 intersections are classified into various types; the freeway traffic accident records from September 1, 1998. to December 31, 2003. are collected; the geometric structures Gnterchange angles, the number of lanes, radii of curvature, and grades) are investigated; and the nationwide freeway traffic volume are calculated by the freeway origin destination survey to construct the base of the research materials. From these collected materials, this research is advanced into a close exarnination of hazardous intersections and connecting roads, hence producing a various meaningful results. The main research results are as follows. This research exhibits the data of the hazardous intersections and connecting roads which are closely exarnined by applying the upper limit control. Based on the significance probability of 99.5%, the hazardous intersections are found to be 13 intersections including ’Kyung-Ju interchange'. Moreover, in the case of connecting roads, 10 hazardous intersections are found including‘ East Kwang-Ju No.2’ connecting road. Meanwhile, it can be decided as the special characteristics of hazardous intersection if the angle of intersection is big, and has many lanes of connecting roads. The hazardous connection roads have a small radius of curvature, a large grade, and a low traffic volume despite many lanes.
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