In this photo provided by the Metropolitan Transportation Authority, crews install new speed restriction signs along the Metro North tracks in Port Chester, N.Y., Thursday, Dec. 12, 2013. Speed

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In this photo provided by the Metropolitan Transportation Authority, crews install new speed restriction signs along the Metro North tracks in Port Chester, N.Y., Thursday, Dec. 12, 2013. Speed limits were reduced along certain stretches of the nation’s second-largest commuter railroad after a speeding train left the tracks when it entered a sharp curve on Dec. 1, 2013. Four people died and more than 60 were injured in the accident. (AP Photo/Metropolitan Transportation Authority, Patrick Cashin) less 

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Associated Press
Fri, Dec 13, 2013 12:22 PM EST