"A preliminary investigation into the incident found the derailment happened because nine screws holding down rail fastenings on part of the track leading into Union Station gave way under fatigue, Metrolinx CEO Michael Lindsay said. These lag screws should be fastened by four screws in the plate. At this particular location they were fastened by two, he said, citing the latest track standards, updated in 2016."
"After the train made contact with the track switch, it continued to roll, "destroying that infrastructure and some of the signaling infrastructure, Lindsay said, referring to the technology that signals to other trains if a rail line is in use, in order to prevent collisions. As a result, Lindsay said, four platforms at Union Station could not be used until repairs were made."
On Feb. 2 the back of a GO train derailed near Union Station after nine screws holding rail fastenings gave way under fatigue on the track leading into the station. The lag screws at that location were fastened by two screws in the plate rather than the four required by 2016 track standards. Inspections afterward found one or two other locations with fewer screws, which were fixed. The derailment damaged track and signaling infrastructure, putting four platforms out of service, forcing manual reroutes and disrupting digital departure displays. Metrolinx and the Toronto Terminals Railway are reviewing inspection processes and communication protocols at Union Station.
Read at www.cbc.ca
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