( CNN ) -- The railroad line involved in a deadly train derailment in New York earlier this month will be getting immediate safety improvements , the Metropolitan Transportation Authority announced Sunday . The Metro-North Railroad will be making safety reinforcements at critical curves and movable bridges along the railroad 's right-of-way after Gov . Andrew Cuomo directed the MTA to do so , according to a news release . Signal crews have already installed protections that will warn train engineers of the approaching speed reduction at the curve in the Bronx where the train derailed . The train 's emergency brakes will be activated if speed is not lowered , according to the release . Man vs. machine : Who should be at the wheel ? `` Metro-North is taking important steps to improve safety for its customers and employees , '' MTA Chairman and CEO Thomas F. Prendergast said . `` I expect the railroad will continue searching for ways to improve its operations and fully restore its commuters ' confidence . '' The release also stated that all Metro-North trains will now have conductors next to engineers or communicating by radio at all critical curves and moveable bridges to verbally confirm train speeds , according to the release . Agency issues emergency safety order after derailment . A Metro-North Hudson line train derailed December 1 in the Bronx , killing four people and injuring 67 . The train jumped the tracks while barreling into a curve at 82 mph , nearly three times the 30-mph limit for the curve , according to the National Transportation Safety Board . The engineer , William Rockefeller Jr. , apparently `` was nodding off and caught himself too late '' before the accident , a union representative who met with the man has told CNN .
Metro-North Railroad to add safety measures ordered by Gov . Gov. Andrew Cuomo says he will ask federal regulators for permission to increase speed limits on the tracks between New York City and Grand Central Terminal in Manhattan as part of a plan to improve safety. Changes include warnings of speed reductions , emergency braking . A train derailed in the Bronx when it entered a curve at 82 mph , killing 4 and injuring 67 .