A quick-thinking teenager rescued an elderly man who was trapped between level crossing barriers at Sawbridgeworth with a train fast approaching. Riley Donovan, 16, was on his way to his Sawbridgeworth home from school on Monday (June 10) when he saw the man trying to escape from the tracks. He leapt into action. His father, Toby, told the Indie that when he asked Riley about his day, he mentioned in passing ‘Oh, I just saved an old man on the railway track!’ While motorists remained in their cars watching, Riley stepped in to lift a barrier for the man – just before a train arrived. Toby said…