Is there an actual quote from the NTSB? Some reports are saying 80 in a 30 zone, which could have been before the accident. Others are saying
showed the train was traveling at 80 mph in a 30 mph zone when it derailed.
the speed of the train at the time of the accident had been determined
News organizations tend to be quite imprecise these days.
Reports also seem to confirm that PTC was installed but not activate.