Re: Major Amtrak derailment in Philly (1351799) | |||
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Re: Major Amtrak derailment in Philly |
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Posted by Charles G on Wed May 13 15:25:23 2015, in response to Re: Major Amtrak derailment in Philly, posted by WMATAGMOAGH on Wed May 13 14:47:22 2015. Source is not the "black box", but a surveillance video that captures the train speeding by. A calculation of train length and time to pass the spot (which is apparently immediately before the curve) is where they are coming up with the 106MPH estimate. |