
Metro's Orange and Blue Lines are up and running Tuesday morning after being closed at the Foggy Bottom station all weekend for track work.
This weekend, Metro replaced some of the faulty track circuits that contributed to its 2009 crash on the Red Line that killed nine people. These circuits led Metro to believe its tracks were clear near the Fort Totten Station when, in fact, a train was there undetected.
The National Transportation Safety Board advised Metro to replace all of these faulty circuits, something it's doing one holiday weekend at a time. Metro says it'll shut down a different station during almost every three day weekend this year, because that allows crews to do what would otherwise take at least six weekends of single tracking.

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