UK rail company First Capital Connect has been told to review driver training after a man was dragged onto the track by a train leaving a station in February 2006.
The man, in his 40s, needed surgery for injuries caused by a coat being caught in the train door at Huntingdon, Cambridgeshire. Rail accident investigators said First Capital Connect should now educate its drivers to be more observant.
A Rail Accident Investigation Branch report said the driver saw the man but not a hazard, and continued on his way.
"The driver became fleetingly aware a person was close to the side of the train but misinterpreted the situation and continued to drive away," said the Rail Accident Investigation Branch's (RAIB) report.
The unnamed person was pulled along the platform before falling down the gap between the train and platform edge.
"The person sustained serious injuries to his left arm and hand. The train continued for 1.5 miles (2.5km) before coming to a stand," the report continued.
Investigators said the train was operated by the driver and had no additional staff.
Driver rules required the length of the train to be checked – using close circuit television – before departure.
But the report said the rules did not specify what a driver should do if a person was in "close proximity" to the train.
