混合交通中互联和自动驾驶汽车的存在:对安全和环境的影响
1College of Transportation Engineering, Tongji University, Shanghai, China.
Traffic injury prevention
|January 2, 2024
概括
将互联和自动驾驶汽车 (CAV) 引入交通流中,可以减少人驾驶汽车 (HDV) 的驾驶波动性,提高安全性和降低排放. 这提高了整体的交通流量,碰撞风险和空气污染.
科学领域:
- 交通工程是交通工程.
- 汽车安全 汽车安全
- 环境科学 环境科学
背景情况:
- 互联和自动驾驶汽车 (CAV) 的日益集成需要了解它们对混合交通环境的影响,特别是在中国.
- 关于CAV如何在现实交通场景中影响常规人驾驶车辆 (HDV) 的驾驶行为,目前的研究有限.
研究的目的:
- 为了量化HDV驾驶特征的变化,当跟随CAV与另一个HDV.
- 评估这些变化对交通安全和环境质量的影响.
主要方法:
- 一个驾驶模拟平台被用于两个场景:遵循模拟的HV和遵循合作自适应巡航控制 (CACC) 校准的CAV.
- 在每个场景中,分析了30名参与者的速度,加速度和进度.
- 使用速度/加速波动和碰撞时间 (TTC) 评估了交通安全;使用局部排放和燃料消耗模型评估了环境影响.
主要成果:
- 与HV相比,HV在跟随CAV时表现出较低的速度和加速度波动.
- 在CAV之后的场景中,观察到对撞时间 (TTC) 的显著改善.
- 当HV跟随CAV时,记录了较低的平均燃料消耗和排放.
结论:
- 将CAV集成到交通系统中可以提高运营安全和环境质量.
- CAV有助于更稳定的交通流,减少碰撞风险,减少空气污染.
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