Replaced sensor possibly contributed to Metro collision
‘Kost’
courtesy of ‘florisla’
Today’s Post has an article about recent discoveries in the train collision revolving around a train sensor. Metro uses sensors mounted on the tracks – typically on the crossbeams between rails – that detect the presence of a train in order to determine if a track is clear and and provide direction to oncoming trains. A sensor was replaced in the week preceeding the accident and apparently was suffering an intermittent flaw that was difficult to detect with Metro’s user interfaces.
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