Photo: Paul Chinn, The Chronicle
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BART is now offering limited service after a “computer problem” shut down the entire system Saturday morning.
At 9 a.m., BART tweeted that it had re-opened.
“We are now open and offering limited service,” the agency said. “There is currently no service from Daly City to Millbrae or SFO airport.”
The closure was first announced at 5:42 a.m. According to a BART news release, crews working overnight on the system’s uninterruptible power supply in Oakland “ran into problems” that impacted the traction power supply system and train control routing system.
The traction power system sends power to the trains and the routing system is how BART programs “which direction and route the trains should maneuver.”
“Without both these systems, we are not able to safely dispatch trains for service,” BART said early Saturday morning.
BART encouraged travelers affected by the outage to use its trip planner to book alternative means transportation.
In addition, bus agencies that serve BART stations offered to let riders affected by the outage to ride for free.
This story is developing and will be updated as more information is made available.
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This post was originally posted at https://www.sfgate.com/bayarea/article/BART-shut-down-computer-problem-system-Bay-Area-13675755.php.