高速公路连续纵坡路段安全性分析

Safety analysis of continuous longitudinal slope section of Expressway

高速公路为了克服高差,路线不可避免的存在多处连续纵坡路段。在进行连续上坡路段的安全性分析时,针对设置大型车爬坡车道的必要性和可行性,提出相关安全改善方案。进行连续下坡路段的安全性分析时,采用PIARC的刹车毂温度计算模型对长下坡路段刹车毂温度进行预测,提出长下坡路段安全保障措施建议。

In order to overcome the height difference,there are many continuous longitudinal sections in the expressway.In this paper,when analyzing the safety of the continuous uphill section,aiming at the necessity and feasibility of setting up climbing lane for large vehicles,the relevant safety improvement scheme is proposed.In the safety analysis of continuous downhill section,PIARC's brake hub temperature calculation model is used to predict the brake hub temperature of long downhill section,and suggestions for safety assurance measures of long downhill section are put forward.