Abstract

Platooning is an extension of Cooperative Adaptive Cruise Control (CACC) and forward collision avoidance technology; it allows lateral and longitudinal control of vehicles while they move in tight formations. Platooning is ideal for trucks as they usually travel long distances in highways as a group. It is necessary to understand if the existing roadside safety devices are adequate to resist the consecutive impacts at high speed that can occur due to errant truck platoons. It is also important to analyze the associated occupant risks during such impact events. A detailed analysis of the capacity and adequacy of Manitoba Concrete Bridge Rail using computer simulations, under Manual for Assessing Safety Hardware (MASH) Test Level 5 (TL5) criteria, is presented in this study. The study briefly discusses the methodology to run multiple impact computer simulations in LS-DYNA. The impact of the leading truck is validated using the known data from a full-scale crash test; then, the impact events involving the following trucks are simulated to understand the additional capacity of the roadside barrier. To assess the occupant risk, the flail space model (FSM) concept is utilised as per MASH criteria. Simulation results imply that catastrophic barrier failure and major injuries to the occupants are unlikely to occur during the truck platoon impact.

摘要

队列行驶是协作式自适应巡航控制 (CACC) 和前向防撞技术的延伸；它允许车辆在紧密编队中移动时对其进行横向和纵向控制。队列是卡车的理想选择，因为它们通常作为一个群体在高速公路上长途行驶。有必要了解现有的路边安全装置是否足以抵抗由于卡车排错而可能发生的高速连续冲击。在此类影响事件期间分析相关的居住者风险也很重要。本研究根据安全硬件评估手册 (MASH) 测试级别 5 (TL5) 标准，使用计算机模拟对曼尼托巴混凝土桥轨的容量和充分性进行了详细分析。该研究简要讨论了在 LS-DYNA 中运行多重冲击计算机模拟的方法。使用全面碰撞测试的已知数据验证领先卡车的影响；然后，模拟涉及以下卡车的撞击事件，以了解路边护栏的额外容量。为了评估乘员风险，根据 MA​​SH 标准使用连枷空间模型 (FSM) 概念。模拟结果表明，卡车排碰撞期间不太可能发生灾难性的屏障失效和对乘员的重大伤害。根据 MA​​SH 标准使用连枷空间模型 (FSM) 概念。模拟结果表明，卡车排碰撞期间不太可能发生灾难性的屏障失效和对乘员的重大伤害。根据 MA​​SH 标准使用连枷空间模型 (FSM) 概念。模拟结果表明，卡车排碰撞期间不太可能发生灾难性的屏障失效和对乘员的重大伤害。