浅析互通式立交变速车道设计
摘要:互通式立交变速车道是连接主线和匝道的部分,是车辆减速驶离或加速汇入主线的重要路段,也是容易发生事故的路段,设计中应予以高度重视,确保行车安全。
关键词:互通式立交;变速车道;端部;设计;辅助车道 analysis of interchange design of speed change lane liang zhan zhu di huang liang
abstract: interchange speed change lane is the portion of connecting the mainline and ramp, is the main important sections which the vehicle deceleration from or accelerated into the mainline, and accident-prone sections, we should attach importance to it in our design,ensure traffic safety. key word: interchange;speed change lane;interchange terminal;design;auxiliary lanes
中图分类号:u448.17文献标识码: a 文章编号:
在主线与匝道连接的路段,为适应车辆变速行驶的需要,而不致影响主线交通所设置的附加车道称为变速车道。变速车道由加减速车道和渐变段两部分组成,车辆由主线驶入匝道时减速所需要的附加车道称为减速车道,车辆由匝道驶入主线时加速所需要的附加车道称为加速车道。变速车道是车辆安全驶离或汇入主线的重要部分,是整个互通式立交系统中最容易发生交通事故的路段,设计中应予以高度重视。
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