使用替代安全措施对信号交叉路口进行风险场评估
S L Jeena1, Sheela Alex1, Padmakumar Radhakrishnan1
1Department of Civil Engineering, College of Engineering Trivandrum, Thiruvananthapuram, Kerala, India.
Journal of safety research
|September 10, 2025
概括
这项研究利用微观模拟绘制了信号交叉点的交通安全风险. 高风险区域根据信号阶段和车道位置的变化,为交叉路口安全改进提供了见解.
科学领域:
- 交通工程是交通工程.
- 交通运输安全运输安全
- 道路安全分析的分析
背景情况:
- 有信号的十字路口对于交通控制至关重要,但存在后端和变车道冲突的风险.
- 现有的交通控制方法不能完全缓解交叉路口的安全问题.
- 需要对有信号的交叉路口进行积极的安全评估.
研究的目的:
- 积极评估和空间地图安全和风险在信号交叉路口的方法.
- 为不同的信号变化间隔开发风险场模型.
- 在信号交叉路口的高风险区域内识别高风险区域.
主要方法:
- 在三个混合交通信号交叉点使用视频摄像头收集现场数据.
- 使用后入侵时间 (PET) 作为代孕安全措施.
- 使用PTV-VISSIMTM进行微模拟建模和使用代孕安全评估模型 (SSAM) 进行分析.
主要成果:
- 风险在停车线附近最低,在接近它的不同距离处达到峰值.
- 在整个信号周期和绿色阶段,高风险区域主要位于中间车道.
- 风险区域在红色阶段转移到中间侧车道,并在绿色信号时远离交叉路口.
结论:
- 信号交叉点的风险分布是动态的,受信号阶段和车道位置的影响.
- 风险场模型为有针对性的安全干预提供了宝贵的见解.
- 了解空间风险变化可以提高交通信号操作和交叉路口设计.
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