探索雾天高速公路交通管理的有效途径

雾天能见度低,驾驶人的视线及判断能力受到很大影响．雾给高速公路交通带来巨大的经济损失和安全隐患,如何在雾天等低能见度条件下开展高速公路交通管理工作是交通管理部门的一个难题．本文从管理实践角度出发,剖析了高速公路雾情特点及雾天行车驾驶人的心理特征,阐述了不同雾情及不同路段单元的管控要点,提出了低能见度条件下“小循环重叠的...     

Effects of crash warning systems on rear-end crash avoidance behavior under fog conditions

Reduced visibility conditions increase both the probability of rear-end crash occurrences and their severity. Crash warning systems that employ data from connected vehicles have potential to improve vehicle safety by assisting drivers to be aware of the imminent situations ahead in advance and then taking timely crash avoidance action(s). This study provides a driving simulator study to evaluate the effectiveness of the Head-up Display warning system and the audio warning system on drivers’ crash avoidance performance when the leading vehicle makes an emergency stop under fog conditions. Drivers’ throttle release time, brake transition time, perception response time, brake reaction time, minimum modified time-to-collision, and maximum brake pedal pressure are assessed for the analysis. According to the results, the crash warning system can help decrease drivers’ reaction time and reduce the probability of rear-end crashes. In addition, the effects of fog level and drivers’ characteristics including gender and age are also investigated in this study. The findings of this study are helpful to car manufacturers in designing rear-end crash warning systems that enhance the effectiveness of the system’s application under fog conditions.     

高速公路雾区通行智能解决方案

从雾的定义、类型、形成条件及对高速公路行车影响出发,论述了加强高速公路雾天智能控制的重要性,并全面介绍了雾区通行智能解决方案。     

雾天高速公路交通事故成因分析及管理措施

文章分析了雾天高速公路交通事故的成因与特征,提出了相应的交通管制方式和处置措施,为雾天高速公路的交通管理工作提供思路。     

雾封层在河惠高速公路预防性养护中的应用

通过对河惠高速公路采用雾封层措施的沥青路面预防性养护工程,施工前后的路面性能进行检测以及数据对比评价雾封层措施的效果,表明雾封层措施能有效的改善路面表观性能,抑制病害对道路的结构损害,起到延长道路寿命的作用．