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Guidance-oriented advanced curve speed warning system in a connected vehicle environment

机译：导向式汽车环境中指导先进曲线速度警示系统

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摘要

Connected Vehicles (CV) technology has been used to address safety issues on highway horizontal curves. Existing curve warning systems are either using curve warning signs or providing drivers with an in-vehicle curve warning message in advance, allowing drivers to adjust their speed prior to the vehicle entering the curve. In practice, drivers might be compliant before entering the curve but may pick up the speed in the curve. Therefore, it remains a problem that existing curve warning systems are not able to guide drivers by providing necessary speed warnings through the entire course of approaching, entering, navigating, and leaving horizontal curves. Therefore, the objective of this study is to improve curve speed compliance by proposing a guidance-oriented Advanced Curve Speed Warning system (Advanced-CSW) with a focus on providing guided curve speed messages throughout the horizontal curves. The Advanced-CSW system is based on Dedicated Short-Range Communication (DSRC) enabling vehicle-infrastructure (V2I) communication. Anytime the vehicle is speeding, the guided message will be displayed until the vehicle's speed is within compliant range. Drivers who use the Advanced-CSW can receive multiple guided messages from the in-vehicle heads-up display through the entire course of navigating through horizontal curves. Thirty participants are recruited to perform the driving experiment on the simulator of driving through a series of horizontal curves under various geometric, roadway and traffic conditions. These conditions include different curve severity, illumination, and pavement wetness levels. The Advanced-CSW system's performance was evaluated in terms of the speed difference, which measures the gap between the in-curve mean speed and curve advisory speed. The results were compared with the performance of speed difference by driving with CSW or CSO through the entire curve. The experiment data was modeled using the mixed linear model with random effects, which includes the individual's driving behavior. In summary, when male drivers navigate through the horizontal curves under different curve speed warning systems, their speed compliance is significantly increased with continuous and guided messages provided in comparison with the speed compliance under the one-time curve speed warning message and the curve sign only. Female drivers improve their speed compliance in the curve by using curve signs only comparing to using one-time curve speed warning message or continuous guided curve speed warning messages. Also, male drivers' speed differences by using the guided system are significantly reduced by 6.53 similar to 7.68 mi/h compared to driving with curve signs only or one-time curve speed warning message. In addition, there is also a speed reduction of 1.81 mi/h if male drivers receiving continuous guided messages in the curve during the daytime than during the nighttime. The proposed adaptive system based on that is adaptive to the vehicle's real-time speed and location by providing a new direction in designing effective curve warning systems. The speed-guided messages through the entire course of approaching, entering, navigating, and leaving horizontal curves can solve the current issue of speed incompliance by using the existing curve warning systems.
机译：已连接的车辆（CV）技术已被用来解决公路水平曲线上的安全问题。现有曲线警告系统使用曲线警告标志或提前提供带内车曲线警告消息的驱动程序，允许驱动程序在进入曲线之前调整其速度。在实践中，在进入曲线之前，驱动程序可能是符合要求，但可能会在曲线中取出速度。因此，仍然是通过在接近，进入，导航和留下水平曲线的整个过程中提供必要的速度警告来引导驱动程序的现有曲线警告系统仍然存在问题。因此，本研究的目的是通过提出导向导向的先进曲线速度警告系统（Advanced-CSW）来提高曲线速度顺应性，其专注于在整个水平曲线中提供引导曲线速度消息。 Advanced-CSW系统基于专用的短程通信（DSRC），从而实现车辆基础设施（V2I）通信。随时车辆加速，将显示引导消息，直到车辆的速度在柔顺范围内。使用Advanced-CSW的驱动程序可以通过通过水平曲线导航的整个过程接收来自车载抬头显示的多个引导消息。招募了30名参与者，以在各种几何，道路和交通条件下通过一系列水平曲线进行驾驶的驾驶实验。这些条件包括不同的曲线严重程度，照明和路面湿度水平。在速度差方面评估了高级CSW系统的性能，从而测量了曲线均衡速度和曲线咨询速度之间的间隙。通过通过整个曲线驱动CSW或CSO来将结果与速度差的性能进行比较。使用具有随机效果的混合线性模型建模实验数据，包括个人的驾驶行为。总之，当男性驾驶员在不同的曲线速度警告系统下浏览水平曲线时，它们的速度合规性与与单次曲线速度警告消息和曲线符号下的速度顺应相比相比提供的连续和引导消息显着增加。使用曲线标志仅使用一次性曲线速度警告消息或连续引导曲线速度警告消息来提高曲线中的曲线速度符合性。此外，使用引导系统的男性驱动器的速度差异显着降低6.53，与曲线迹象的驱动相似，类似于7.68英米/小时，只能使用曲线标志或一次性曲线速度警告消息。此外，如果在白天在夜间期间接收曲线中的连续引导消息，则还有1.81 mi / h的速度降低。基于该建议的自适应系统，通过在设计有效曲线警告系统时提供新的方向，基于该自适应系统对车辆的实时速度和位置。通过整个进入，进入，导航和留下水平曲线的速度引导消息可以通过使用现有的曲线警告系统来解决当前速度不合规的速度问题。

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  • 来源
    《Accident Analysis and Prevention》 |2020年第12期|105801.1-105801.24|共24页
  • 作者

    Wang Song; Wang Yi; Zheng Qi; Li Zhixia;

  • 作者单位

    Univ Louisville Ctr Transportat Innovat Dept Civil & Environm Engn Louisville KY 40292 USA;

    Univ Louisville Ctr Transportat Innovat Dept Civil & Environm Engn Louisville KY 40292 USA|Univ Louisville Dept Commun Louisville KY 40292 USA;

    Univ Louisville Ctr Transportat Innovat Dept Civil & Environm Engn Louisville KY 40292 USA|Univ Louisville Dept Bioinformat & Biostat Louisville KY 40202 USA;

    Univ Louisville Ctr Transportat Innovat Dept Civil & Environm Engn Louisville KY 40292 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Connected vehicles; Curve safety; Gender; Driving simulation; Vehicle-to-infrastructure communication;

    机译：连接的车辆;曲线安全;性别;驾驶仿真;车辆到基础设施通信;

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