高速公路限速设定方法研究

 闫海奇

(陕西省交通建设集团公司,陕西 西安 710075

  要:直接以设计速度作为限速值或将设计速度进行绝对数值的折减后作为限速值,可能会导致限速值与实际道路运行条件不符,造成驾驶员不遵守限速的情况。本文介绍了限速对交通安全的影响,分析了限速值的影响因素,总结了现阶段国内外高速公路确定限速值的方法。认为基于工程研究法(如V85),采用数理统计、回归分析等手段进行合理限速标准研究具有重要价值。

关键词:交通安全;高速公路;限速;设定方法

中图分类号:U491    文献标识码:A

Investigating Setting Methods of Speed Limit Values on Freeways

YAN Hai-qi

Shaanxi Provincial Communication Construction Group,Xi’an 710075,China

AbstractThe design speed was chosen as the speed limit value directly or reducing from its absolute value. It may create the inconsistency between the speed limit value and the actual road operating conditions, which caused the driver's reluctance to comply with the speed limit. The influence of speed limit on traffic safety was introduced, and the influencing factors of speed limit was analyzed. Finally, how to determine the speed limit on freeways at the present stage was summarized. Based on engineering research method like V85, using mathematical statistics, regression analysis and other means to determine reasonable speed limit values had great value.

Key words: traffic safety; freeway; speed limit values; setting method