长大下坡路段交通安全分析

Analysis on Long and Steep Downhill Road Safety

山区长大下坡路段往往是事故多发路段,尤其是重型载重车辆的超载快速行驶更易引发重大、恶性交通事故.根据下坡路段事故统计资料,分析纵坡坡度、坡长、竖曲线和下坡衔接平曲线与道路安全的关系,为提高长大下坡路段安全,优化纵面设计提供参考.

Long and steep downhill mountain roads are usually the hazardous locations, especially for the overload and fast going heavy-duty vehicles which are more likely to occur to the traffic accidents. So the relationship between longitudinal gradient, grade length limit, vertical curve and safety is analyzed, which can be referred to improve the safety and optimize the profile design.