摘要
随着高速公路建设规模的不断扩大,高等级公路逐渐向山区延伸,而山区高等级公路长大下坡路段的线形设计若不当或不合理,将限制和影响车辆安全、舒适、经济地运行,甚至常常成为"事故多发路段"、"黑点"路段。因此,做好山区公路长大下坡路段的线形设计,对提高山区高等级公路的安全性与服务功能有着重要的意义。
Along with the continuous enlarging of expressway＇ s construction scale, high-grade highway has extended to mountain area. If the line shape design of long and steep downward slope of mountain high-grade highway is improper or irrational, the safe, comfortable and economical opera- tion of vehicles will be restricted and affected, even the sections will become accident black spots. Therefore solving the problem of line shape design of long and steep downward slope on mountain highway has important significance to improving the security and service function of mountain high-grade highway.
出处
《交通标准化》
2010年第1期78-81,共4页
Communications Standardization
关键词
长大下坡路段
线形设计
特点
方法
long and steep downward slope
alignment design
characteristic
method
