NTSB Updates WMATA Investigation
The National Transportation Safety Board continues to make progress in its investigation of the June 22, 2009, collision of two Washington Metropolitan Area Transit Authority (WMATA) trains on the Red Line in Washington, D.C. The Board has developed the following factual information: — To date, significant work has been done to determine why the presence of train 214 was not identified on the train control circuit that allowed train 112 to crash into it. The NTSB’s accident investigation is continuing, and more work is needed to fully understand why the train control system did not perform as designed. — Most