Rail outage that stranded thousands in Toronto area caused by software upgrade, CN says

October 4, 2023
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GO Transit trains run partly on CN-owned tracks. After CN's computer … Canadian National Railway Co. 144.16, -1.30decrease, -0.89%decrease. Links.

Reason for rail outage still ‘under investigation’ after thousands stranded in GTA
Software upgrade led to rail outage affecting thousands of commuters: CN – CityNews Toronto