Yes, in April 2015, a man who was looking at his phone was walking near a SEPTA platform’s yellow line and cross it. He was rescued by a bystander but suffered a broken back, a shattered knee, broken ribs, and a spleen injury from his 5 foot fall.
Fortunately, someone helped him off of the tracks and back onto the concrete platform before the next subway train came along.
According to 6ABC.com, a SEPTA Police Inspector stated that people who see such an event should alert the cashier immediately, who can stop incoming trains, and also alert police.
Unfortunately, distracted walking is a growing problem everywhere in the world, and the cause of many personal injuries and emergency room visits.