高速公路停车视距分析及应用  

Analysis and Application of Stopping Sight Distance of Expressway

作　　者：李贵冲 Li Guichong(Chinaroads Communications Science&Technology Group Co.,Ltd.,Shijiazhuang 050035,China)

机构地区：[1]中交远洲交通科技集团有限公司,石家庄市050035

出　　处：《北方交通》2022年第6期67-70,共4页Northern Communications

摘　　要：对高速公路停车视距的含义和计算方法进行了介绍,重点研究了在圆曲线长度大于停车视距的情况下,通过停车视距和横净距的计算,得出满足停车视距要求的平曲线最小半径,提出设计时的线形控制指标,通过项目实例揭示停车视距和平曲线半径之间的关系,提出了相应视距的保证措施,以提高高速公路运营的安全性。The meaning and calculation method of stopping sight distance of expressway are introduced,and the minimum radius of horizontal curve meeting the requirements of stopping sight distance is obtained through the key research on the calculation of stopping sight distance and transverse clear distance under the circumstance that the circular curve length is larger than the stopping sight distance,and the linear control index in design is put forward.The guarantee measures for the corresponding sight distance are put forward through a project example to reveal the relationship between the stopping sight distance and horizontal curve radius,so as to improve the safety of expressway operation.

关 键 词：停车视距 设计速度 平曲线 竖曲线 半径 

分 类 号：U412.3[交通运输工程—道路与铁道工程]