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The situational conditions of suicide in transit environments: An analysis using CCTV footage
Journal of Transport & Health ( IF 3.2 ) Pub Date : 2020-12-17 , DOI: 10.1016/j.jth.2020.100976
Vania Ceccato , Douglas J. Wiebe , Katerina Vrotsou , Ullakarin Nyberg , Arne Grundberg

Introduction

We explore the use of CCTV footage to map suicidal self-injurious behavior on a subway platform to better understand the settings and the situational conditions of individuals just before they attempt suicide.

Methods

We use footage from CCTV cameras for gaining new insight into the situational conditions that relate to suicidal self-directed violence in the transit system in Stockholm, Sweden. We adopt a space-time budget template to record, step-by-step, what happens over time as individuals on the platform wait for an incoming train. The analysis applies visualization tools (VISUAL-TimePAcTS) and uses a cross-over design to identify risk factors associated with suicide.

Results

Findings show that suicide risk varies both temporally and spatially. Among all types of possible behaviors and places, being close to the edge of the platform of the opposite direction of the train and crossing the security line – this behavior and place combined – are associated with increased risk of suicide.

Conclusions

We confirm that using CCTV footage as data source provides valuable insight into relevant situational conditions in which suicides take place, which can be useful to inform prevention strategies, particularly information about behavior and place combined. The article concludes by reflecting upon the importance of these results for future research.



中文翻译:

运输环境中自杀的情境条件:使用闭路电视录像的分析

介绍

我们探索使用CCTV素材在地铁平台上绘制自杀性自残行为的地图,以更好地了解个人在自杀前的环境和情况。

方法

我们使用闭路电视摄像机的录像来获取与瑞典斯德哥尔摩公交系统中自杀式自发暴力相关的情况的新见解。我们采用时空预算模板来逐步记录随着时间​​的推移,平台上的个人等待来车的情况。该分析应用可视化工具(VISUAL-TimePAcTS),并使用交叉设计来识别与自杀相关的风险因素。

结果

研究结果表明,自杀风险在时间和空间上都不同。在所有可能的行为和地点类型中,靠近火车相反方向的平台边缘并越过安全线-这种行为和地点相结合-与自杀风险增加相关。

结论

我们确认,使用闭路电视录像作为数据源可以提供有关自杀发生的相关情况的宝贵见解,这对于指导预防策略,尤其是有关行为和场所的信息很有用。本文最后总结了这些结果对未来研究的重要性。

更新日期:2020-12-17
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