Just some thoughts which are offered for comment:
Way back in the 1970s when I was learning to drive, whilst I had lessons from a professional instructor, most of my practice was with my father. Back and fore to school was the weekday practice. On the weekends I had the 'pleasure' of driving around the Docks roads. My father was Assistant Dockmaster so this was a perk. As most will know, docks had no shortage of railway lines crossing the roads, rarely signposted, so I learnt equivocably at that stage that a railway line without gates or barriers, means stop and look, even on a sunday.
Forward a few years and I am now a guard sitting in the front end of a northbound parcels. As we reached a half barrier crossing in the North-east of England, we (driver and I), can see cars stopped at the barrier and then a Morris Marina passed four stopped cars and drove onto the crossing on the wrong side of the road. Do you need any more information?
Cruuuuuunnnnccchhh. One Marina under the front end of a Class 47 moving at about 90mph. 600 yards or so later we stop and a whole lot of protection of the line etc. duties for the guard.
Not one that involved me at all, but how can any driver be so incompetent as to hit the second coach of a DMU? Its 57ft long and 12ft plus high. How the blazes couldn't he see it? (Llandybie Crossing, Ammanford in the mid 80's)