平面交叉口港湾式左转车道安全设计

Safety Design of Harbor Type Left-turn Lane at Grade Crossing

在平面交叉口交通事故中,与左转相关的事故占较大比例,而设置港湾式左转车道,可有效改善平交路口的交通安全状况。分析左转车辆对交叉口安全性的影响,确定设置港湾式左转车道的主要因素,并结合国内外研究,从左转车道的长度和宽度等方面对左转车道的设计进行探讨,提出平面交叉口港湾式左转车道的安全设计方法并分析其安全效益。

In traffic accidents at grade crossing, the accidents related to the leftturn account tot slgnmcant shares, while setup of harbor type left - turn lane can effectively improve traffic safety at grade cross- ing. This paper analyzes influences of left - turn vehicles on safety of crossing, determines main factors for setup of harbor type left - turn lane, probes into design problems of left - turn lane from aspects such as length and width of left - turn lane, etc. in combination with studies at home and abroad, and puts forward safety design methods for harbor type left - turn lane at grade crossing and analyzes safety benefits of such methods.