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首页> 外文会议>International Conference on Logistics, Engineering, Management and Computer Science >Multiple Geometric Factors Contributing to Mountainous Freeway Crashes: A Case Study of Changjin Freeway in Jiangxi, China
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Multiple Geometric Factors Contributing to Mountainous Freeway Crashes: A Case Study of Changjin Freeway in Jiangxi, China

机译：多重几何因素有助于山区高速公路崩溃：以江西长金高速公路为例

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摘要

Many previous researches have analyzed the causes of freeway accidents, especially for those in the mountainous areas, but few of them have put deep insight into the geometric factors. Using 1,023 crash records during the period of 2006-2012 from Changjin Freeway in Jiangxi, China, this research evaluated the relation between contributory geometric factors and crash rate. Geometric factors were classified into three categories: vertical alignment, horizontal alignment, and cross section. Then detailed effects of geometric variables are separately discussed and quantified through the relation with crash rate (CR). It was found that the CR value is greater at minor radius and long-down grade sections. Additionally, segments of angle of deflection varying over 17-25° and wider cross sections are much safer, compared with other locations.
机译：许多以前的研究已经分析了高速公路事故的原因，特别是对于山区的那些，但其中很少有人深入了解几何因素。 在中国江西的长金英高速公路期间，在2006 - 2012年期间使用1,023次碰撞记录，这项研究评估了贡献几何因素与碰撞率之间的关系。 几何因子分为三类：垂直对齐，水平对齐和横截面。 然后通过与崩溃速率（CR）的关系分别讨论和量化几何变量的详细效果。 发现CR值在次要半径和长距等级部分中更大。 另外，与其他位置相比，偏转角度变化的偏转角度和更宽的横截面的区段更安全。

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