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为弥补我国现行规范和美国MUTCD关于出口预告指路标志设置经验主义的缺陷,根据驾驶员驶离高速主线的驾驶行为,视觉特性以及高速道路交通条件,建模确定了预告指路标志3种不同安装方式(路边直立式、路上横跨式及中央架设式)在不同车道数和不同设计速度下的设置距离。TSIS-CORSIM模拟表明,本文计算值比我国现行规范以及MUTCD推荐值在分流鼻上游500 m产生的车道变换次数分别少38%和74%,能较大程度改善分流区的安全性能。
In order to make up for the shortcomings of the existing norms of China and the MUTCD of the United States on setting empiricism about the export forecasting road signs, three different types of pilot signs were determined according to the driver’s driving behavior, visual characteristics and expressway traffic conditions when leaving the high-speed mainline. Installation methods (roadside upright, on-street and center-mounted) Set the distance between different lane numbers and different design speeds. TSIS-CORSIM simulation shows that the calculated values of this paper are 38% and 74% less than the current codes of China and MUTCD recommended values of 500 m upstream of the shunt nose, respectively, which can greatly improve the safety performance of the shunt area.