一种合作控制方法,用于在异质流量流中的更安全的上坡路合并过程
Wenzhang Yang1, Changyin Dong1, Xu Chen1
1Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 211189, China; Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Nanjing 211189, China; School of Transportation, Southeast University, Nanjing 211189, China.
Accident; analysis and prevention
|September 30, 2023
概括
本研究引入了连接和自动化车辆 (CAV) 的合作控制方法,以提高在上坡道合并区的安全性. 拟议的差距选择策略可以显著降低交通风险和事故,而不会影响效率.
科学领域:
- 交通工程是交通工程.
- 智能运输系统 智能运输系统
- 控制理论 控制理论
背景情况:
- 上坡区是危急的冲突区,交通事故频繁发生.
- 连接和自动化车辆 (CAV) 为提高合并安全提供了潜在的解决方案.
- 不同质的流量流给合并过程带来了独特的挑战.
研究的目的:
- 提出一种合作控制方法,以在混合交通中更安全地进行上坡路合并.
- 为虚拟排队开发一个双层间隙选择功能.
- 评估拟议的控制方法的安全性和效率.
主要方法:
- 描述悬崖车辆形成虚拟排队的间隙选择过程.
- 使用车辆链接 (VB) 来定义车辆之间的连接.
- 实施双层差距选择功能,优先考虑安全和公平.
- 使用时间暴露时间到碰撞 (TET),累积风险 (CR) 和冲突-潜在合并比率 (CPMR) 进行评估.
主要成果:
- 差距选择控制促进了合并的位置,减少了合并的风险.
- 在没有损害交通效率的情况下,在上坡路合并安全方面观察到显著的改进.
- 在10-90%的CAV透率下,与非对照组相比,平均TET和CR下降了30-60%.
- 在纯粹的CAV环境中,安全改进达到约90%.
结论:
- 拟议的间隙选择控制方法有效地提高了在异质交通中在上坡路上的合并安全性.
- 控制策略在各种流量和速度中是稳健的,在100-200米的通信区域中具有最佳性能.
- 这种方法为在高风险的合并区减轻事故提供了有希望的解决方案.
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