风景区道路极限平曲线最小半径取值探讨  

Research on Lowest Radius of Limit Circle Curve for Scenic Area Road Design

作　　者：吴志欢[1] 陈飞[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《交通标准化》2007年第12期84-87,共4页Communications Standardization

摘　　要：现行公路路线设计规范是针对一般公路编制的,其中一些指标并不适用于风景区道路设计。针对风景区道路与一般公路在行车速度、交通组成等方面的区别,分析适用于风景区道路设计的横向力系数阈值、最大超高的取值,可推算出风景区道路设计极限平曲线最小半径的合理取值。在相同设计车速下,该值要比现行公路规范规定值小5m～10m,这在一定程度上增加了风景区道路设计的灵活性。Design specification for highway route in use is written aiming at general road, some indexes of which are not applicable for scenic area road design. Analyzing side force coefficient threshold and supreme super elevation for scenic area road design aiming at the differences between scenic area road and general road at the aspects of operating speed and traffic composition, it can calculate the reasonable value of lowest radius of limit circle curve for scenic area road design. This value is smaller 5m-10m comparing with the value of specification in use. The conclusion adds the flexibility of scenic area road design.

关 键 词：风景区道路 极限平曲线最小半径 横向力系数 

分 类 号：U412.34[交通运输工程—道路与铁道工程]