基于冲突的安全评估,使用替代安全措施在未经标志的十字路口进行安全评估
Dungar Singh1, Pritikana Das1, Indrajit Ghosh2
1Department of Civil Engineering, Maulana Azad National Institute of Technology Bhopal, 262003, India.
Heliyon
|March 18, 2024
概括
基于冲突的道路安全分析使用侵占后时间 (PET) 和碰撞时间 (TTC) 揭示了混合交通中的关键相互作用. 机动两轮车 (MTW) 和汽车在没有信号的十字路口面临的风险最高.
科学领域:
- 交通工程是交通工程.
- 道路安全分析 道路安全分析
- 运输科学 运输科学
背景情况:
- 传统的道路安全评估通常依赖于历史事故数据,这些数据可能无法完全捕捉导致事故的动态相互作用.
- 替代安全措施,包括时间,空间和动力学指标,提供了对道路用户行为和潜在危险的更细致的了解.
- 在混合交通环境中的无信号交叉路口,由于各种车辆类型和行为,存在复杂的安全挑战.
研究的目的:
- 开发和应用一种方法来评估混合交通条件下在没有信号的十字路口的道路安全.
- 用替代安全措施来量化关键冲突,例如侵占后时间 (PET) 和碰撞时间 (TTC).
- 确定影响交叉和后方碰撞风险的关键因素.
主要方法:
- 使用后侵占时间 (PET) 交叉机动和时间碰撞 (TTC) 后端碰撞.
- 根据从制动距离中得出的临界速度计算了临界冲突.
- 采用了通用线性回归来建模交叉冲突和k-means集群来确定后端机动的严重性.
- 分析了城市混合交通环境中五个没有信号的交叉路口的数据.
主要成果:
- 机动两轮车 (MTW) 和汽车与关键冲突的比例最高,特别是与右转车辆有关.
- 交通量和车辆组成是十字路口冲突的重要预测因素.
- 低于1.15秒的碰撞时间 (TTC) 门表明高风险的后端相互作用.
- 机动车和汽车的存在增加了关键交叉冲突的可能性.
结论:
- 与传统方法相比,开发的基于冲突的方法提供了更深入的洞察力,可以在没有信号的十字路口了解道路安全.
- 交通量和组成是理解和减轻交叉冲突的关键因素.
- 特定的车型,特别是MTW和汽车,在混合交通环境中需要专注的安全干预.
- 拟议的安全框架适用于评估和提高混合交通的未标志交叉路口的安全性.
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