Computer glitch blamed for train signalling failure

Event Year: 2011 Reliability: Confirmed
Country: Australia
Industry Type: Transportation
Description:

A computer glitch was blamed for a failure at the Sydenham signalling complex.  The computer failure prevented a switch to a backup signalling system.  As a result, all trains were given a red signal and stopped.  Approximately 100,000 commuters experienced delays throughout the day.  The trains couldn

Impact:

Rail service on six lines stopped when signalling equipment failed.  Commuters experienced delays for more than nine hours.

Action Description: Rail service restored after system was rebooted.