Saturday, May 16, 2015
Positive train control wasn't installed
[ Thu, 14 May 2015 18:03:23 EDT ]
A system known as positive train control likely would have kept the Amtrak train from derailing in Philadelphia, National Transportation Safety Board Member Robert Sumwalt says.
[ Thu, 14 May 2015 18:03:23 EDT ]
A system known as positive train control likely would have kept the Amtrak train from derailing in Philadelphia, National Transportation Safety Board Member Robert Sumwalt says.
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