山区公路典型小半径曲线安全改造  

Safety Reconstruction of Typical Small-radius Curve in Mountain Highways

作　　者：杜志刚[1] 崔显忠 

机构地区：[1]武汉理工大学交通学院,武汉430063 [2]深圳市甘泉建设监理有限公司,广东深圳518048

出　　处：《浙江交通职业技术学院学报》2008年第3期4-8,共5页Journal of Zhejiang Institute of Communications

基　　金：西部交通建设科技项目(200431822333-08)

摘　　要：山区公路长大下坡加小半径曲线是事故多发点。本文以某山区公路事故黑点为研究对象,通过对行车速度及车辆行车轨迹的分析,得出小半径曲线视觉信息不良及离心力过大是导致事故的主要原因。在对车辆侧向稳定性理论分析基础上,对改造前后运行车辆运行安全性进行了分析评价,并提出了山区公路小半径曲线的道路安全设计方法,以供参考。Mountain highway with long down- slope alignment and small- radius curve is most likely to be the accident black spot. The mountain highway blackspot was selected as research object, through the analysis about driving speed and observed car path. The conclusion was made that bad vision information and centrifugal force were the main causes leading to accident for small- radius curve. Based on the vehicle＇ s lateral stability analysis, the driving vehicle＇ s safety was evaluated between before the reconstruction and after the reconstruction, and the design method of road safety in mountain highways was brought forward for referance.

关 键 词：山区公路 小半径曲线 侧向稳定 视觉信息 安全改造 

分 类 号：U412.34[交通运输工程—道路与铁道工程]