터널 입구부 안전시설물 안전성 증대방안 연구

이점호,김장욱,김덕수,이수범,Lee, Jeom-Ho,Kim, Jang-Wook,Kim, Deok-Soo,Lee, Soo-Beom 한국도로학회 2008 한국도로학회논문집 Vol.10 No.4

본 연구에서는 도로의 증가와 더불어 급속히 증가하고 있는 터널에서 차량이 터널에 진입할 때의 속도편차를 분석하여 터널입구부의 안전성을 증진할 수 있는 방안에 대하여 연구하였다. 터널의 존재는 운전자에게 그 자체만으로서 단순한 오르막 경사보다 더 큰 속도 감소를 유발하며, 터널 입구부에서 발생하는 차량 충돌사고는 다른 도로구간에서 발생하는 사고와 비교해 볼 때 피해가 더 크다. 따라서 사고로 인한 피해를 경감시키기 위해 터널 입구부에 PE방호벽이나 가드레일 등의 안전시설을 설치하고 있지만, 운전자에게 이것은 또 다른 장애물로 인식될 수 있다. 터널 입구부에 설치되어 있는 안전시설물의 형태는 크게 PE방호벽, 가드레일, PE 드럼 등이 있으나, 본 연구에서는 고속도로터널 입구에 일반적으로 가장 많이 설치되어 있는PE방호벽과 운전자에게 장애물로 인식될 수 있는 이러한 안전시설물이 설치되어 있지 않은 경우로 크게 구분하였다. 또한 터널 내부로 진입 할 때 갓길을 포함 우측방여유폭의 차이가 큰 경우와 작은 경우로 구분하였다. 4가지 형태의 터널 입구부에서의 차량속도와 일반도로구간에서의 YDS(차량검지체계)로 수집된 속도의 차이를 분석에 사용하였다. 통계적 검증을 통하여 안전시설물 설치 형태와 우측방여유폭의 차이에 따른 각 Case별 유의성을 검토하여 터널 입구부 안전성 증진을 위한 대안을 제시하고자 한다. Since rapidly increase of tunnel with increasing of expressway, the study on safety improvement of safety device at entrance of expressway tunnels is necessary. The existence of tunnel occurs more speed reduction than an upward slope by itself, the collision accident of tunnel entrance causes heavier damage than that of general accident on the road. So, many kinds of safety devices such as poly-ethylene barrier, guard-rail are placed on the road side. But these devices affect the drivers as an obstacle. Although there are various safety devices that are placed at tunnel entrance, this study is related to following 2-cases. One is that the poly-ethylene barrier is placed and the other is that a safety devices is not placed. The reason that these two cases are selected, is that poly-ethylene barrier is usually placed at many tunnel entrances and safety devices can affect the drivers as an obstacle. This study is related to the difference of right-hand side clearance between inside tunnel and outside tunnel, too. The average difference observed car speed and VDS(vehicle detect system) speed nearby the tunnel is analysed. Through the statistical analysis of the average difference, this study suggests an alternatives on safety improvement of safety devices at entrance of expressway tunnels. It is concluded that the small difference of right-hand side clearance is desirable to drivers when a poly-ethylene barrier is placed. And when the difference of right-hand side clearance is large, no safety devices is desirable, and when the difference of right-hand side clearance is small, poly-ethylene barrier should be placed to improve safety.

벼 품종의 재배 연차에 따른 특성 변이

이점호,황기호,정국현,최영근,문헌팔 한국작물학회 1997 한국작물학회 학술발표대회 논문집 Vol.1997 No.1

총체 사료용 벼 적성 평가 연구

이점호,정호영,백진수,홍하철,양세준,이영태,성경일,김병완 한국초지조사료학회 2005 한국초지조사료학회 학술대회논문집 Vol.2005 No.1

벼 초다수 내랭성 신품종 "다산1호"

이점호,최용환,양창인,정오영,이규성,예종두,김홍열,황홍구,이정일,정국현,신영섭,전용희,이상복,이영태,정응기,황기호 한국육종학회 2012 한국육종학회지 Vol.44 No.1

다산1호'는 내랭성이 강한 통일형 초다수 벼 품종을 육성하기 위하여 1997년 하계에 Bengal/Yongmoonbyeo F1에 Dasanbyeo를 삼원교잡시켜 계통육종법에 의하여 육성한 품종으로, 2006년 12월에 직무육성신품종선정위원회에서 신품종으로 결정되었는데 그 주요특성을 요약하면 다음과 같다. '다산 1호'의 출수기는 보통기 재배에서 8월12일로 다산벼보다 2일 정도 늦은 중생종이며, '다산 1호'의 도열병, 흰잎마름병, 호엽고병 및 오갈병에 Dasan 1', a new Tongil-type rice (Oriza sativa L.) cultivar, was developed by the rice breeding team of National Crop Experiment Station, R.D.A., Suwon, Korea during the period from 1997 to 2006 and released in 2007. It was derived from a cross between Bengal/Youngmoonbyeo and Dasanbyeo. This cultivar has about 130 days of growth duration from seeding to heading and is semidwarf(culm length 81 cm). It has erect pubescent leaves and tough thick culm with strong lodging tolerance. This cultivar has a few less tillers per hill and markedly more spikelet numbers per panicle. 'Dasan 1' is strong to cold tolerance under the low temperature condition. This new variety reveals relatively rapid leaf senescence and strong tolerance to viviparity during the ripening stage. This cultivar is considerably multi-resistant to blast, bacterial leaf blight, and virus disease. Milled rice of this variety is non-glutinous endosperm with slightly less translucency and more chalkiness compared with japonica high-quality rice. Its rice kernel is medium size, slightly longer and larger than those of Dasanbyeo. It has 18.6 % amylose content and low gelatinization temperature. The yield performance of 'Dasan 1' is 7.18 MT/ha in polished rice in local adaptability test for three years. 'Dasan 1' is adaptable to central plain area, mid-western coastal area of Korea.

地方大學生의 現實과 學會에 바라는 마음

이점호 대한토목학회 1986 대한토목학회지 Vol.34 No.1

차량 주행특성을 고려한 감속 완화곡선 설계방법 개발

이점호 한국도로학회 2008 한국도로학회논문집 Vol.10 No.3

I study for design criteria and research about Interchange diverging area of express highway and freeway. the most recent, at interchange diversion of express highway and freeway, design criteria and researches are focus on safety guarantee a point of view movement dynamics of vehicle and road geometric as to transition section, deceleration section, curve radius, nose section, outflow angle etc. that is, design criteria and research of Interchange diverging area have not consider a point of view movement dynamics of vehicle and road geometric and driver. so that I will be focus characteristic of runing speed on trasion curve. and I will consider vehicle running speed characteristics and study problem of Interchange diverging area design criteria. For this study, First, analysis meaning about theory of now design criteria, Second, look at vehicle running speed and traffic accident characteristics of Interchange diverging area , Third, propose new deceleration transition curve design method get along vehicle running speed characteristics of Interchange diverging area. new deceleration transition curve design method put out new outcoums. that is, I definite cause to safety new deceleration transition curve design method better than pressently, used design criteria of Interchange diverging area. especially, deceleration transition curve design criteria produced good result in the running speed 50km/h,40km/h, that is inertia better than inertia of present used design criteria. and deceleration transition curve is extended better than present transition curve criteria. so that new deceleration transition curve design method safety is good better than the past method safety. I study for design criteria and research about Interchange diverging area of express highway and freeway. the most recent, at interchange diversion of express highway and freeway, design criteria and researches are focus on safety guarantee a point of view movement dynamics of vehicle and road geometric as to transition section, deceleration section, curve radius, nose section, outflow angle etc. that is, design criteria and research of Interchange diverging area have not consider a point of view movement dynamics of vehicle and road geometric and driver. so that I will be focus characteristic of runing speed on trasion curve. and I will consider vehicle running speed characteristics and study problem of Interchange diverging area design criteria. For this study, First, analysis meaning about theory of now design criteria, Second, look at vehicle running speed and traffic accident characteristics of Interchange diverging area , Third, propose new deceleration transition curve design method get along vehicle running speed characteristics of Interchange diverging area. new deceleration transition curve design method put out new outcoums. that is, I definite cause to safety new deceleration transition curve design method better than pressently, used design criteria of Interchange diverging area. especially, deceleration transition curve design criteria produced good result in the running speed 50km/h,40km/h, that is inertia better than inertia of present used design criteria. and deceleration transition curve is extended better than present transition curve criteria. so that new deceleration transition curve design method safety is good better than the past method safety.

중생 흑자색 찰벼 신품종 "보석흑찰"

이점호,이상복,김홍열,양창인,김명기,전용희,이규성,김연규,정오영,황흥구,최용환,양세준,조영찬,오세관,예종두,이정희,원용재,이정일,정국현,황기호 한국육종학회 2011 한국육종학회지 Vol.43 No.6

보석흑찰(수원512호)은 생리활성기능을 가지고 있는 안토시안 함량이 높고 중생이며 흑자색 찰벼 품종을 개발하고자 유색찰 우량계통 SR18638-B-B-B-18-2와 흑자색 유색미 유전자원 흑미 H31을 교배하여 계통육종법으로 육성한 신품종이다. 선발된 우량계통에 대해 2005년부터 2006년까지 2년간 생산력 검정시험을 수행한 결과, 중생이고 색소의 착색과 수량성이 양호한 SR24098-17-2-2-3-2-2 계통을 선발하여 '수원 512호'로 계통명을 Boseogheugchal' a new black pericarp glutinous rice cultivar (Oriza sativa L.), was developed by the rice breeding team of National Institute of Crop Science, RDA, Suwon, Korea during the period from 1997 to 2008 and released in 2008. It was derived from a cross between SR18638-B-B-B-18-2/ Heugmi H31. The maturity of this cultivar is about 135 days from seedling to heading. This cultivar has about 12 tillers per hill and 94 spikelet numbers per panicle. Ripening ratio is about 72% and 1000 grain weight is 21.6 g in brown rice. This new variety shows grain shattering resistance and susceptible for blast, bacterial leaf blight and stripe virus. 'Boseogheugchal' has glutinous endosperm and low protein contents. It has higher anthocyanin content compared to black pigmented check cultivar 'Hegjinjubyeo' The yield performance of brown rice was 4.82 MT/ha in local adaptability test for three years. 'Boseogheugchal'is adaptable to central plain area of Korea.

평면곡선부의 속도 및 교통사고 영향분석연구

이점호,이동민,최재성 대한교통학회 2000 대한교통학회지 Vol.18 No.1

본 연구는 평면곡선부의 자유속도변화와 교통사고에 대한 영향을 분석하기 위해 수행되었으며, 이를 위해 곡선반경별로 진입부 직선도로-곡선부도로-진출부 직선도로로 구분하여 각 차량의 속도를 산출하였다. 평면곡선부의 자유속도변화와 기하구조의 영향을 분석하기 위해 선행차량에 의해 영향을 받지 않는 속도를 이용하였다. 이러한 곡선부에서 주행하는 차량의 자유속도를 통해 곡선반경별 최저속도와 그 속도가 나타나는 위치를 분석하였고, 해당 도로구간의 교통사고자료를 비교·분석하여 평면곡선 내의 속도변화와 교통사고발생간의 관계를 규명하였다 연구 결과는 다음과 같다. 첫째, 운전자들은 곡선시작지점에 도착하기 전에 충분히 속도를 줄이고, 곡선부에서 가장 낮은 속도가 나타나는 위치는 곡선내에서 나타난다. 이는 운전자의 시거에 의한 영향이다 둘째, 곡선부에서의 속도변화폭이 클수록 사고위험성은 크고, 실제 교통사고 발생건수도 높다. 본 연구의 결과를 통해 도로 주행의 안전성을 고려한 평가지표를 개발할 수 있으며, 이는 일관성 있는 도로설계를 이루게 한다. The Purpose of this Paper was to study the relationship between the change of operating speeds and the accidents on horizontal curves. For this purpose, we divided a horizontal curve section into two parts, a tangent section and a curve section, to estimate the operating speed for each vehicle. For studying relationship between the change of speed and geometric effect, the free-flow speed was used. The location and speed for the lowest speed were studied. Also, we analyzed the relationship between the change of operating speeds and the accidents. The followings are resulted in this study. First, drivers tend to reduce speeds significantly before they reach a curve. And the lowest speed was recorded at the downstream of the Point of curve (PC) due to the limited sight-distance of drivers on curve. Second, the larger the change of operating speeds become, the greater frequency of accident was recorded. These results can be used for developing the safety index on highways to check the design consistency.

최적 총체 사료벼 품종 선발을 위한 건물수량 및 사료가치 분석

이점호,정오영,백진수,홍하철,양세준,이영태,김종근,성경일,김병완 한국동물자원과학회 2005 한국축산학회지 Vol.47 No.3

고속도로 교통운영 특성 및 도로선형요소를 반영한 주행속도 예측모형 개발

이점호,이수범,홍다희 대한교통학회 2006 대한교통학회지 Vol.24 No.5

도로는 일관성 있는 선형으로 안전하게 주행할 수 있도록 설계되어야 하며, 안전성 향상을 위해 적절한 주행속도로 주행할 수 있는 환경이 제공되어야 한다. 적절한 도로환경을 제공하기 위하여 설계시 정확한 주행속도의 반영은 필수적이므로, 이를 예측할 수 있는 주행속도 예측모형이 필요하다고 판단된다. 이에 본 연구에서는 주행속도 예측모형 구축을 위해 영동고속도로를 대상으로 주행속도에 영향을 미치는 요인을 크게 선형요소, 교통운영특성 요소로 분류하였다. 분류한 요인을 중심으로 평면직선, 평면곡선구간 그리고 종단곡선구간의 각 구간별로 상관분석을 통하여 주행속도에 영향을 미치는 요인을 선정하였다. 선정한 요인들을 대상으로 다중회귀모형을 이용하여 주행속도예측모형을 구축 및 검증 결과, 본 연구의 주행속도 예측모형이 통계적으로 모두 적합한 것으로 나타났다. 본 연구는 평면 및 종단선형요소를 동시에 반영하여 국내 도로 실정에 맞는 주행속도 예측모형을 개발하였다는데에 그 의의가 있다. 그러나 분석자료가 영동고속도로로 한정되어 전국을 대표할 수 없으므로 향후 전국을 대상으로 도로 선형요소를 바탕으로 대표성을 지닐 수 있는 연구가 필요하다고 판단된다. The road should be designed in the consistent alignment which the driver can drive safely. Also, proper highway environments in order to maintain optimal operational speeds on highway sections should be provided. In design stage, for highway environments, it is essential for an operational speed estimation model to different highway environments. If a method which could evaluate the status of the road safety is developed through this operational speed estimation model, it is possible to provide safe and more comfortable highways to road users. In the study, factors to effect on operational speeds are classified into three groups; horizontal & vertical alignments and traffic operation characteristic factors. Factors are chosen to effect on operational speeds by using collation analysis as classifications of tangent sections, horizontal curve sections and vertical curve sections. In order to develop operational speed estimation models in express highways, multi-regression analysis has been used in this study using the selected factors. This study has meaning that the developed estimation models for operational speeds and evaluation of degree of safety to horizontal and vertical alignments simultaneous. In order to represent whole area of the country with the developed models, the models should be re-analyzed with vast data related with road alignment factors in the near future.