公路纵断面线形设计与安全评价方法  

Alignment Design and Safety Evaluation Method of Highway Longitudinal Section

作　　者：赵芳 Zhao Fang(Design and Research Institute of CCCC SHEC Co.,Ltd.,Wuhan,Hubei 430000)

机构地区：[1]中交第二航务工程局有限公司设计研究院,湖北武汉430000

出　　处：《工程技术研究》2022年第16期173-175,共3页Engineering and Technological Research

摘　　要：文章通过道路纵断面线形设计概念的论述,对纵坡安全影响进行了分析,然后通过分析交通事故中坡长与坡度的重要联系,得出坡长、坡率、竖曲线在很大程度上影响着车辆的运行速度。若公路坡度超出3%,随着坡长的提升,行车速度将严重受到影响,同时相较于上坡路段,下坡路段更易引发安全事故。为了确保项目整体的安全性,设计者应提出有效的公路通行安全可靠性方案,规避交通事故的发生。Through the discussion of the alignment design concept of the road longitudinal section,this paper analyzes the influence on the longitudinal slope safety.Then,through the analysis of the important relationship between slope length and slope in traffic accidents,it is concluded that slope length,slope rate and vertical curve have a great influence on the the speed of the vehicle.If the road slope exceeds 3%,the driving speed will be seriously affected with the increase of the slope length.At the same time,compared with the uphill section,the downhill section is more likely to cause safety accidents.In order to ensure the overall safety of the project,designers should put forward effective highway traffic safety and reliability schemes to avoid traffic accidents.

关 键 词：纵坡坡度 竖曲线 安全设计 运行速度 

分 类 号：U412.34[交通运输工程—道路与铁道工程]