A railway worker who was killed by a train was tired and probably worrying about having to cover for his brother, a report has found.
The man died when he was hit from behind at 69mph (111km/h) in Croydon, after midnight on 6 November last year.
Investigators found the man, who was on a zero-hour contract, had moved away from the section of track which had been protected for workers.
Network Rail said it was “reviewing our standards and our supplier practices”.
The worker had put warnings on the tracks to allow others to remove litter, but then walked along sleepers in the middle of the rails to Stoats Nest Junction, Purley.
A Southern train approached from behind and in spite of the driver repeatedly sounding his horn and