The investigation into last year's Chicago Transit Authority train crash at the O'Hare subway station concluded this week. The National Transportation Safety Board listed several factors as contributing to the March 2014 accident that injured 33 people. The failure of the rail operator to report to work properly rested and the failure of the CTA to manage her schedule were listed as the probable cause of the accident, according to the NTSB report.
When the operator of the Blue Line train fell asleep at the controls, the eight-car train overran the bumping post and crashed into an escalator. The operator admitted to the NTSB that she had fallen asleep and indicated that it was not the first time. She was dealing with changing starting times and was working at a time when fatigue is a likely problem. The crash occurred at roughly 3 a.m.