It seems crazily unsafe to me that railway stations have ticket barriers
and yet we can still see crowds of people surging and shoving, as
departures details are changed, whilst trains come and go between
overcrowded platforms (we don't let air travellers mill about runways).
Today's invention is a modification to ticket barriers so that people
can only move through them to the train side when the correct platform
for the destination on their ticket has been displayed on the departures
board and the train is stationary at the platform.
Read more: http://iotd.patrickandrews.com/2011/01/10/1472-railimiter/
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