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街道环境如何影响行人碰撞的风险? 一个使用街景图像为基础的行人暴露测量的链接层次分析
Yijia Hu1, Long Chen2, Zhan Zhao3
1Department of Urban Planning and Design, The University of Hong Kong, Hong Kong Special Administrative Region.
Accident; analysis and prevention
|June 27, 2024
概括
街景图像 (SVIs) 显示行人暴露,显示更多的人增加了碰撞频率,但减少了严重伤害. 步行者设施的设计显著影响了碰撞的风险和严重程度.
科学领域:
- 城市规划 城市规划
- 运输工程 运输工程
- 公共卫生 公共卫生
背景情况:
- 街道空间对于行人安全至关重要,但细微的环境影响仍然不清楚.
- 分析街道级行人安全需要了解行人暴露的空间变化,这往往受到数据限制的阻碍.
研究的目的:
- 从街景图像 (SVIs) 中提取链接级行人曝光.
- 调查微型街道环境和行人设施对行人撞车风险 (频率和严重程度) 的影响.
主要方法:
- 利用SVI来得出链接层次的行人暴露数据.
- 在链路层面分析了行人撞车频率和严重程度,考虑了最大和中等严重程度的指标.
- 在香港进行了一项案例研究.
主要成果:
- 与区域级数据相比,SVI衍生的行人暴露改善了模型匹配.
- 增加行人暴露与较高的撞车频率相关,但严重伤害风险较低 (数量安全效应).
- 十字路口的存在增加了车祸,但更密集的设计减轻了这一点;双面人行道增加了频率,而没有人行道增加了严重性风险.
结论:
- 使用SVI进行精细的街道环境分析对于了解行人安全至关重要.
- 步行者设施的设计 (人行道,人行道) 显著影响了碰撞的结果.
- 调查结果强调优化街道设计和设施,以提高行人安全,减少严重伤害.
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