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Signal System Was Down for Safety Upgrades Before Fatal Amtrak Crash, Authorities Say

Feb 05, 2018 - The New York Times

A maintenance crew working on a railway in South Carolina on Sunday had disabled its signal system to install new technology meant to prevent crashes when an Amtrak train slammed into a freight locomotive on the track, killing two people, federal investigators said on Monday.

The crew had taken the system down in order to installtechnology known as positive train control, which can automatically slow a locomotive to prevent the very kind of crash that occurred, said Robert L. Sumwalt, the ...