The Overview
When drivers approach a level crossing, they are sometimes in a position where they can cross but not necessarily be safely clear of the grid if they have to stop for lights on the other side.
It's simply a case of bad judgement which occasionally has fatal consequences.
This campaign which consisted of cinema, radio and outdoor advertising dramatised the fact that even the most minor misjudgement could have massive repercussions, so it's not worth the risk.