Under the Suicide Lights

Tightly wound, casting doubt about one’s worth in life, you see the Tokyo bound train barreling towards you.  You tightly clench your coat to await your final ride on the Hanzomon-sen . 
Your legs quiver, your mood is dark, you're feeling blue.  You prepare to jump on your last train, but a blue light stops and lifts you out of your darkened state. 
The light that matches your mood saves you from your momentary drive towards your final destination. 
Somehow these blue lights prevent suicide, exactly how they perform their function isn’t exactly clear or well known.  Nevertheless,  these blue lights definitely shed light on the subject of suicide in Japan.  However, blue lights seem to work.      
I have witnessed one person stepping in front of a Tokyo bound train before.  This was before the installation of the blue lights at many stations.  Yet, can these blue lights actually prevent people from jumping in front of a train.  
Mood enhancement by use of certain lights isn’t a new concept. In the treatment of certain mood disorders such as seasonal affective disorder certain lights seem to boost the mood of those affected. 
Blue lights as a suicide prevention may turn out to be one of the first ways we begin to prevent all sorts of social problems.  Use of such lighting in public spaces may become a part of future urban planning.  The blue lights are lit, let’s see if the lights stop other lights from prematurely going out.