车辆-行人近距离碰撞分析在信号的中间街区十字路口
Md Jamil Ahsan1, Mohamed Abdel-Aty1, Nafis Anwari1
1Department of Civil, Environmental and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA.
Journal of safety research
|February 25, 2025
概括
步行者和道路因素显著影响车辆-行人安全指标,如入侵后时间 (PET) 和相对时间到碰撞 (RTTC). 特定因素,如行人分心和交通流动影响这些安全指标在十字路口.
科学领域:
- 运输工程 运输工程
- 交通安全研究 交通安全研究
- 交通运输中的人类因素
背景情况:
- 在街区中间交叉路口的车辆与行人之间的交互对于城市安全至关重要.
- 了解影响近乎失误事件的因素对于开发有效的安全干预措施至关重要.
研究的目的:
- 确定影响车辆和行人接触后时间 (PET) 和相对碰撞时间 (RTTC) 的行人和道路特征.
- 分析不同交通控制系统 (PHB和RRFB) 对这些安全指标的影响.
主要方法:
- 从行人混合信标 (PHB) 和矩形快速闪信标 (RRFB) 站点收集了112小时的视频数据.
- 利用先进的计算机视觉 (CV) 技术来提取详细的车辆和行人轨迹数据.
- 采用双变量回归分析来检查近距离失误指标和影响因素之间的关系.
主要成果:
- 无论是行人 (性别,衣服颜色,分心,速度) 和道路 (中位数,交通流量,土地使用) 的特点都对PET和RTTC产生重大影响.
- 遵守行人信号,儿童的存在和与司机的眼神接触特别影响PET.
- 虽然RRFB和PHB在PET影响上没有差异,但PHB与RRFB相比显著增加了RTTC.
结论:
- 调查结果强调了基于数据的方法的重要性,以提高中间街区交叉口的行人安全.
- 建议包括实施基于确定影响因素的有针对性的安全策略.
- 未来的研究可以将这些发现整合到人工智能驱动的交通管理系统中,以提高安全性.
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