In a low-visibility environment, the speed of traffic flow is more discrete on highways, which easily causes traffic accidents. To improve the safety and efficiency level of low-visibility zones on highways, a comprehensive optimization control method is proposed. The method uses formations of a low-visibility zone to queue discrete vehicles from the upstream intersection. Then, according to the relationship between the arrival time of the fleet and the phase state of the intersection, speed guidance and trajectory optimization are carried out to improve the traffic efficiency of the fleet that enters the low-visibility zone. Finally, a low-visibility zone of a highway segment is analysed with different traffic flows for the main road and the secondary roads, and the results show that the proposed optimization control method can prevent trajectory overlap and effectively decrease traffic delays on highways.

中文翻译：

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多信号交叉口内公路路段低能见度区域交通流的速度引导和轨迹优化

在低能见度环境下，高速公路上的车流速度更加离散，容易引发交通事故。为提高高速公路低能见度区域的安全和效率水平，提出了一种综合优化控制方法。该方法使用低能见度区域的编队将来自上游交叉路口的离散车辆排队。然后，根据车队到达时间与路口相位状态的关系，进行速度引导和轨迹优化，以提高进入低能见度区域的车队的通行效率。最后，分析了高速公路路段的低能见度区域，主要道路和次要道路的交通流量不同，