Facts about two previous train accidents inside the Hoboken, New Jersey, station where a New Jersey Transit train crashed on Thursday, killing one person and injuring more than 100 others:

MAY 8, 2011: A Port Authority Trans-Hudson, or PATH, train crashed into a bumper at the end of a track, injuring more than 30 people. The National Transportation Safety Board found the engineer failed to control the speed of the train as it entered the station. Investigators also determined a contributing factor was the absence of positive train control, a system designed to prevent accidents by automatically slowing or stopping trains going too fast.

DEC. 30, 1985: A New Jersey Transit train crashed into a bumper at the end of a track while traveling at 10 mph, injuring more than 50 people. Investigators found the train couldn’t stop because a slippery gel used to test train wheels days earlier had not been completely washed from the tracks.