Install blue LED lighting on platforms as a low-cost calming measure
#00155
Install blue LED lighting on platforms as a low-cost, easily retrofitted calming/deterrent measure aimed at reducing suicides — an approach with large but heavily contested effect estimates that should not be treated as equivalent to physical barriers.
Japan (metropolitan rail network)
InconclusiveJapanese rail operators (evaluated by Matsubayashi, Sawada & Ueda) · 2000–2013 · National
Blue LED lights were installed at platform ends across Japanese stations. Before-and-after panel data studies (14 treated stations, neighbouring and control stations, 2000–2013) reported large decreases in suicides and…
Suicides at stations with blue lights (claimed)pre-installation → -74% (95% CI 48–87%)% change
Single-company estimate (claimed)pre-installation → -84% (95% CI 14–97%)% change
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