视距加宽计算方法在高等级公路设计中的应用  

Application of Horizon Widening Calculation Method in the Design of High-grade Highway

作　　者：朱喜 ZHU Xi(Xiangxi Tujia and Miao Autonomous Prefecture Transportation Plamning Survey and Design Institute,Changsha branch,Changsha,Hunan 410000,China)

机构地区：[1]湘西土家族苗族自治州交通规划勘察设计院长沙分院,湖南长沙410000

出　　处：《黑龙江交通科技》2023年第7期17-19,共3页Communications Science and Technology Heilongjiang

摘　　要：高等级公路设计时要充分考虑行车速度较快,驾驶人员的反应能力有限,如果公路设计不合理,就会出现因安全视距不足而造成的交通安全事故。为此本文对安全视距计算公式进行修正,利用视距加宽计算方法优化高等级公路的平面视距加宽数据值。该方法不仅有效提升了设计效率,同时通过对比横净距数据,可以对现有高等级公路的视距数据进行最优化设计,确保小型客车在规定时速内不会发生因视距不足而产生交通安全事故。In the design of high-grade highways,it is necessary to fully consider the fast driving speed and the limited visual reaction system of drivers.If the highway design is not reasonable,traffic safety accidents will occur due to insufficient parking safety sight distance.Therefore,this paper modifies the calculation formula of safe stopping sight distance,and optimizes the plane sight distance widening data value of high-grade highway by using the sight distance widening calculation method.This method not only effectively improves the design efficiency,but also optimizes the sight distance data of the existing high-grade highway by comparing the transverse clear distance data,so as to ensure that the traffic safety accidents due to insufficient sight distance will not occur in the specified speed of small passenger cars.

关 键 词：高等级公路 横净距 视距加宽 安全视距 加宽数据 

分 类 号：U412[交通运输工程—道路与铁道工程]