The Metropolitan Transportation Authority said on Monday that it completed work to make sure Metro-North trains slow down as they pass through five critical curves and five moveable bridges.
The change to the signal system were required by the Federal Railroad Administration in early December in response to the tragic Dec. 1 derailment in the Bronx that resulted four deaths.
MTA's update comes five months ahead of the federal agency's Sept. 1 deadline.
Modifications to the signal system will now signal the conductors when to slow down as the trains approach any of the 10 locations. A train would come to a stop if the driver doesn't respond to the warnings.
The ten locations include the curves near the Spuyten Duyvil station, the site of last year's derailment, as well as those at Yonkers, White Plains, Bridgeport and Port Chester stations.
Speed controls were also installed at the five moveable bridges on the New Haven Line at Cos Cob, South Norwalk, Westport, Milford and Devon.
Metro-North President Joseph Giulietti said that the changes brings the MTA "another step closer to a safer railroad, which is our number one goal.
"We will continue to take all necessary steps to restore Metro-North to greatness," he added.
Follow Chester Jesus Soria on Twitter @chestersoria