There has been a long-standing technical fault at the level crossing in Oxfordshire where a man was killed today, a source in the railyway industry has told Channel 4 News's Michael Crick.
The source said there has been a fault at the crossing in Yarnton for four years, which Network Rail's maintenance team has been unable to fix.
Mr Crick added, though, that Network Rail has said the crossing was in "full working order".
More top news
Investigators have released images of two more people they wish to speak to about the Hillsborough tragedy.
The number of reported anti-semitic incidents in the UK have increased by just over 50%, figures released by a charity have suggested.
Athletes competing at next years Summer Olympic Games in Rio de Janeiro will be using waters contaminated with human feces, a study finds.