Nerve-wracking CCTV footage has been released of people risking their lives crossing a railway line - just seconds before trains fly past. <br /><br />The shocking video shows dozens of reckless individuals completely ignoring the signals indicating the imminent arrival of a train. <br /><br />They not only put their own lives at risk but also those of others on board the trains which can be seen moving in and out of Grays station, Essex.