CAJ | 학술논문

对成南、成雅高速公路道路下凹段中央分隔带防眩植株的高度在不考虑车辆前照灯的影响时,通过数学方法进行推算,并与实地防眩高度观测值进行比较.通过不同凹曲线半径情况下所需防眩高度的观测值测定,推导凹曲线半径值与防眩高度之间的回归方程.结果表明,当不考虑前照灯照射角的影响时所得公式计算的防眩高度值偏小.在凹曲线段,为满足防眩要求,需要根据具体情况增加防眩高度.凹曲线半径值与防眩高度之间的回归方程为Y=192.4-0.005X,表明在高速公路各种因素的极限情况下,中央分隔带的防眩高度最大不超过192 cm,最低不低于109 cm,并随着半径值的增加,其防眩高度降低.
대성남、성아고속공로도로하요단중앙분격대방현식주적고도재불고필차량전조등적영향시,통과수학방법진행추산,병여실지방현고도관측치진행비교.통과불동요곡선반경정황하소수방현고도적관측치측정,추도요곡선반경치여방현고도지간적회귀방정.결과표명,당불고필전조등조사각적영향시소득공식계산적방현고도치편소.재요곡선단,위만족방현요구,수요근거구체정황증가방현고도.요곡선반경치여방현고도지간적회귀방정위Y=192.4-0.005X,표명재고속공로각충인소적겁한정황하,중앙분격대적방현고도최대불초과192 cm,최저불저우109 cm,병수착반경치적증가,기방현고도강저.
Without considering the effects of head lamp of vehicle, the height of dizziness-preventing plant in medium separation area of Chengdu-Nanchong Expressway and Chengdu- Yaan Expressway was calculated by using mathematics method. And it was compared with the observed value of actual dizziness-preventing height. Through determining the observed value of dizziness-preventing height under different vertical-curved radius, the regression equation between vertical-curved radius and dizziness-preventing height was deduced. The results showed that the calculated dizziness-preventing height was partial to be small without considering the effects of head lamp of vehicle. At concave section, the dizziness-preventing height should be increased for meeting the demands of dizziness-preventing. The regressing equation between vertical-curved radius and dizziness-preventing height was Y=192.4-0.005X, which indicated that the highest dizziness-preserve height of the medium separation area was not more than 192 cm and the least value was not less than 109 cm. With the increase of vertical-curved radius, the dizziness-preventing height decreased.