The effectiveness of platform screen doors for the prevention of subway suicides in South Korea

Yong Woon Chung, Sung Jin Kang, Tetsuya Matsubayashi, Yasuyuki Sawada, Michiko Ueda

研究成果: Article

16 引用 (Scopus)

抄録

Background Subway suicide can significantly impact the general public. Platform Screen Doors (PSDs) are considered to be an effective strategy to prevent suicides at subway stations, but the evidence on their effectiveness is limited. Methods We assessed the effectiveness of installing half- and full-height platform screen doors in reducing subway suicides using Poisson regression analysis. Ten-year monthly panel data for 121 subway stations between 2003 and 2012 in the Seoul metropolitan area were used for the analysis. Results We found that installing PSDs decreases fatal suicide cases by 89% (95% CI: 57-97%). We also found that the installation of full-height PSDs resulted in the elimination of subway suicides by completely blocking access to the track area; however, half-height PSDs, which do not extend to the ceiling of the platform, were not as effective as full-height ones. Limitation Our findings were based on the data from a single subway operator for a limited period of time. Accordingly, we did not consider the possibility that some passengers choose to die at a station run by other operators. Our study did not examine the potential substitution effects of other suicide methods. Conclusion Installing physical barriers at subway stations can be an effective strategy to reduce the number of subway suicides; however, half-height PSDs are not as effective as full-height ones, even when they are as high as the height of an adult. Thus, these barriers should be made high enough so that nobody can climb over them.

元の言語English
ページ(範囲)80-83
ページ数4
ジャーナルJournal of Affective Disorders
194
DOI
出版物ステータスPublished - 2016 4 1
外部発表Yes

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Railroads
Republic of Korea
Suicide
Architectural Accessibility
Regression Analysis

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

これを引用

The effectiveness of platform screen doors for the prevention of subway suicides in South Korea. / Chung, Yong Woon; Kang, Sung Jin; Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko.

:: Journal of Affective Disorders, 巻 194, 01.04.2016, p. 80-83.

研究成果: Article

Chung, Yong Woon ; Kang, Sung Jin ; Matsubayashi, Tetsuya ; Sawada, Yasuyuki ; Ueda, Michiko. / The effectiveness of platform screen doors for the prevention of subway suicides in South Korea. :: Journal of Affective Disorders. 2016 ; 巻 194. pp. 80-83.
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N2 - Background Subway suicide can significantly impact the general public. Platform Screen Doors (PSDs) are considered to be an effective strategy to prevent suicides at subway stations, but the evidence on their effectiveness is limited. Methods We assessed the effectiveness of installing half- and full-height platform screen doors in reducing subway suicides using Poisson regression analysis. Ten-year monthly panel data for 121 subway stations between 2003 and 2012 in the Seoul metropolitan area were used for the analysis. Results We found that installing PSDs decreases fatal suicide cases by 89% (95% CI: 57-97%). We also found that the installation of full-height PSDs resulted in the elimination of subway suicides by completely blocking access to the track area; however, half-height PSDs, which do not extend to the ceiling of the platform, were not as effective as full-height ones. Limitation Our findings were based on the data from a single subway operator for a limited period of time. Accordingly, we did not consider the possibility that some passengers choose to die at a station run by other operators. Our study did not examine the potential substitution effects of other suicide methods. Conclusion Installing physical barriers at subway stations can be an effective strategy to reduce the number of subway suicides; however, half-height PSDs are not as effective as full-height ones, even when they are as high as the height of an adult. Thus, these barriers should be made high enough so that nobody can climb over them.

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