I did actually see it all over Twitter and Facebook. Amtrak is behind schedule on their implementation of train control sytems: https://www.citylab.com/transportation/2017/12/passenger-rail-has-an-accountability-problem/548687/ Sadly, it takes deadly accidents to spur safety developments:Much has been made of the fact that, once again, positive train control—the automatic braking technology, integrated between cars and tracks, that can detect danger and halt trains—had not been switched on. In 2008, shortly after a fatal collision on Metrolink in L.A. County, Congress mandated PTC implementation on all railroads that carry passengers and/or potentially toxic freight by 2015. Although the upgraded trains and tracks in Washington were equipped for the technology, the system was not slated to go live, corridor-wide, until 2018.
The National Transportation Safety Board first recommended the use of “automatic train control” in 1970, a year after two Penn Central commuter trains collided, killing four people and injuring 43.