Freshly Exhumed writes: Vancouver's automated SkyTrain rapid transit system has crashed not once but twice in one week due to single points of failure in control systems. Authorities have controversially thrown an electrician under the train for accidentally tripping a single breaker, crippling the entire control system for over 5 hours at peak ridership time. In another case, the failure of a single computer card reduced large portions of the system to a standstill for several hours, with both crashes resulting in risky evacuations of SkyTrain cars high above ground level. To go with their abysmally bad PR, the SkyTrain authorities seem to be avoiding discussing the obvious absence of uptime/availability capability.
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