基于矢量加速度变化的下坡路段道路线型评价  

The linear evaluation based on the change of vector acceleration in the downhill roads

作　　者：史扬[1] 王超[1] 陈永胜[1] 

机构地区：[1]北京工业大学

出　　处：《山西建筑》2009年第2期16-17,共2页Shanxi Architecture

摘　　要：基于实测数据,研究了长下坡路段道路线型的交通安全影响,总结出下坡路段道路矢量加速度特征曲线,指明其特征曲线所适应的道路线型条件,提出了基于矢量加速度变化的下坡路段线型评价方法。The paper is based on the date on-the-spot survey, it is focused on the influence of the long and steep downhill roads section＇s linear on road safety, and concludes velocity and acceleration characteristics curves of the downhill section. At the same time, the range and the conditions responding to the characteristics curves is put forward. The linear evaluation methods based on the change of vector acceleration in the downhill roads was proposed.

关 键 词：下坡路段 矢量加速度 特征曲线 评价方法 

分 类 号：U412[交通运输工程—道路与铁道工程]