The effectiveness of installing physical barriers for preventing railway suicides and accidents: Evidence from Japan
The effectiveness of installing physical barriers for preventing railway suicides and accidents: Evidence from Japan
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DOI：
10.1016/j.jad.2015.02.017
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发表时间：
2015-06-01
影响因子：
6.6
通讯作者：
Matsubayashi, Tetsuya
中科院分区：
文献类型：
--
作者：
Ueda, Michiko;Sawada, Yasuyuki;Matsubayashi, Tetsuya
背景：在火车站台上安装物理屏障，例如站台屏蔽门（PSD），被认为是防止铁路自杀的最有效措施之一。然而，几乎没有证据表明此类障碍的有效性。特别是，与全高 PSD 相比，半高 PSD 的有效性从未得到评估。 方法：本研究利用东京都市区一家主要铁路公司提供的 2004 年至 2014 年自杀和事故数据，探讨安装半高 PSD 是否有助于减少致命和非致命铁路自杀事件。此外，该研究还测试了 PSD 的安装是否减少了无意跌落铁轨的情况。结果：我们使用泊松回归模型进行的估计表明，PSD 的引入导致自杀人数减少了 76%（CI：33-93%）。但安装防盗器并没有完全杜绝自杀事件，还存在乘客翻越防盗器的情况。至于意外事故，安装防盗器的车站没有发生坠落事故。局限性：我们的数据仅来自一位列车运营商，因此我们结果的普遍性可能有限。我们没有充分研究潜在的替代效应。结论：站台屏蔽门可有效减少铁路自杀人数。然而，半高 PSD 在防止故意进入火车轨道方面不如全高 PSD 有效。安装 PSD 是防止坠落事故极其有效的方法。 (C) 2015 Elsevier B.V. 保留所有权利，
Background: Installing physical barriers, such as platform screen doors (PSDs), on train platforms is considered to be one of the most effective measures to prevent railway suicide. However, there is little evidence on the effectiveness of such barriers. In particular, the effectiveness of half-height, as opposed to full-height, PSDs has never been assessed.Methods: Using suicide and accident data between 2004 and 2014 provided by a major railway company in the Tokyo metropolitan area, this study examines whether the installation of half-height PSDs has contributed to the reduction of the incidents of fatal and non-fatal railway suicide. In addition, the study tests whether the installation of PSDs has resulted in the reduction of unintentional falls onto railway tracks.Results: Our estimation using a Poisson regression model showed that the introduction of PSDs resulted in a decrease in the number of suicides by 76% (CI: 33-93%). Yet, the installation of PSDs has not completely prevented suicide, as there were cases in which passengers climbed them over As for unintentional accidents, no fall accidents occurred at stations with PSDs. Limitations: Our data come only from one train operator, and thus the generalizability of our results may be limited. We do not fully examine potential substitution effects.Conclusion: Platform screen doors are effective in reducing the number of railway suicides. However, half height PSDs are less effective than the full height PSDs in preventing intentional entry to the train tracks. Installation of PSDs is an extremely effective method to prevent fall accidents. (C) 2015 Elsevier B.V. All rights reserved,