Southern California Regional Rail Authority CEO Michael DePallo reviews a computer display unit of Metrolink's implementation of Positive Train Control, (PTC) inside a train at Los Angeles Union ... more 
Southern California Regional Rail Authority CEO Michael DePallo reviews a computer display unit of Metrolink's implementation of Positive Train Control, (PTC) inside a train at Los Angeles Union Station on Thursday, Feb. 20, 2014. Southern California’s commuter train network has become an early adopter of PTC, a crash-avoidance technology that its own horrific accident helped make mandatory. Congress mandated the technology after a Metrolink engineer ran a red light while he was texting and crashed head-on with a freight train in 2008. (AP Photo/Damian Dovarganes) less 
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Associated Press | Photo By Damian Dovarganes
Thu, Feb 20, 2014 9:06 PM EST