
BART officials say outdated control system was not the cause for morning outage

BART officials say Friday morning's outage impacted 40,000 commuters. A typical Friday morning serves about 160,000 passengers.
There has been a lot of concerns about BART's outdated train control system. But BART officials say that wasn't the problem Friday morning.
BART Spokesperson Alicia Trost says BART wasn't able to power up its control system to get the trains running early Friday morning. The system is run by a computer network made up of thousands of devices like routers and switches, which keep the trains on track.
She says the root cause has to do with network devices not communicating properly with each other. More specifically, the backup system interfering with the main system.
"The crew isolated the exact devices that were not properly communicating, and they disconnected them, and that is what allowed everything to work as normal," Trost said.
BART officials say they are still investigating what happened. However, they do not anticipate that any of Friday's issues will impact service over the weekend.