After investigating Research the accident , the National Transportation Safety Board ( NTSB ) found Know it had been caused Causation by the track stretching Expansion to an excessive gauge at the point of derailment .

It did not fault the crew , instead criticizing Judgment_communication Metro-North for failing to maintain the track and surrounding Surrounding ballast to the point that the track went out Self_motion of gauge .

In the city , the storm Catastrophe destroyed Destroying the tidal gauge , although the storm surge Motion was estimated at .