BART's upgrades failed; system outage recurred

BART experienced a system-wide outage on Friday, disrupting service for hours and forcing commuters to find alternative transportation. The outage occurred despite previous upgrades intended to prevent such incidents. The recent shutdown, lasting nearly four hours, was attributed to communication issues within the redundant network system, not the primary system. BART officials stated the problem stemmed from network devices failing to communicate properly. This incident, reminiscent of a 2019 outage, prompted calls for further investigation and raised questions about the effectiveness of the backup systems. A 10-year system upgrade is currently underway.