小交通量道路平曲线中圆曲线最小长度的合理取值探讨  

Discussion on Reasonable Value of Minimum Length of Circular Curve in Horizontal Curve of Small Traffic Volume Roads

作　　者：李明贵 谢峰 LI Ming-gui;XIE Feng(Sichuan Forestry and Grassland Survey and Planning Institute,Chengdu 610081,China)

机构地区：[1]四川省林业和草原调查规划院,四川成都610081

出　　处：《四川林勘设计》2024年第3期6-10,39,共6页Sichuan Forestry Exploration and Design

摘　　要：随着设计软件的普及,道路设计过程变得更加便捷,但同时也带来了一些设计上的问题。本文重点讨论了在小交通量道路平曲线设计中,圆曲线最小长度的取值问题。当前设计中存在圆曲线长度取值随意,导致线形突变、行车不稳定等现象。结合国内外研究成果及行业规范,本文提出了将圆曲线长度控制在至少2s行车时程范围内的建议。With the popularity of design software,the road design process has become more convenient,but at the same time,it has also brought some design problems.The issue of determining the minimum length of circular curves in the design of flat curves for small traffic volume roads were focused on in this article.The current design has arbitrary values for the length of circular curves,leading to sudden changes in line shape and unstable driving.Based on domestic and international research results and industry standards.A suggestion were proposed to control the length of circular curves within a range of at least 2 seconds of driving time in this article.

关 键 词：小交通量道路 平曲线设计 圆曲线长度 行车稳定性 合理取值 

分 类 号：U41[交通运输工程—道路与铁道工程]