San Francisco's Bay Area Rapid Transit (BART) experienced a complete system shutdown Friday morning due to a computer networking issue affecting the train control system. Service was suspended for several hours, impacting over 170,000 daily commuters. While service resumed around 9 a.m., significant delays persisted. The outage adds to BART's struggles to regain ridership following the pandemic, with current passenger numbers remaining below half pre-pandemic levels.

Prepared by Emily Rhodes and reviewed by editorial team.