Crash Analysis of Roundabouts at High-Speed Rural Intersections
Crash Analysis of Roundabouts at High-Speed Rural Intersections
复制标题
高速乡村路口环岛事故分析
DOI：
10.3141/2096-01
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发表时间：
2009
影响因子：
1.7
通讯作者：
Hillary N. Isebrands
中科院分区：
文献类型：
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作者：
Hillary N. Isebrands
联邦、州和地方机构已将提高交叉口安全性确定为其安全公路运动中可实现的目标。圆形轨道可以减少致命和严重的撞车事故。几十年来，在欧洲和澳大利亚的城市和农村环境中，圆桌会议都取得了成功。有记录的安全效益与roundbrakes解决了许多问题周围的伤害事故在交叉口，但是，应用roundbrakes对双车道，高速（40+ mph）农村公路尚未探讨的程度，城市roundbrakes在美国。本研究对美国农村高速公路上的17个交叉口进行了安全性分析，这些交叉口被改造为环形交叉口。研究结果表明，平均伤害碰撞频率降低了84%，平均伤害碰撞率降低了89%，角度碰撞降低了86%，致命碰撞降低了100%。
Federal, state, and local agencies have identified increased intersection safety as an achievable objective in their campaigns for safer highways. Roundabouts could reduce the number of fatal and severe crashes. Roundabouts have been successful in Europe and Australia in both urban and rural environments for decades. The documented safety benefits associated with roundabouts address numerous concerns surrounding injury crashes at intersections; however, applications of roundabouts on two-lane, high-speed (40+ mph) rural highways have not been explored to the extent that urban roundabouts have in the United States. This research conducted a safety analysis of 17 intersections on high-speed rural roadways in the United States that were converted to roundabouts. The findings show the average injury crash frequency was reduced by 84%, average injury crash rate was reduced by 89%, angle crashes were reduced by 86%, and fatal crashes were reduced by 100%.