| Summary: | A report on Positive Train Control (PTC), a train safety control that Congress has mandated for most of America's major commuter and freight rail lines. The technology was supposed to be installed by 2015, but Congress has extended the deadline twice, now to 2020. PTC is a computerized system that uses technology like Wi-Fi and GPS to transmit information from sensors and signals along the tracks to and from the trains, amounting to an automated braking system that would prevent deadly accidents. Includes interviews with: Mark James, a CSX freight train engineer who was involved in a train crash in Cayce, South Carolina in 2018; Robert Sumwalt, chairman, National Transportation Safety Board; Albert Linden, owner of the electrical contracting business; and Pat Desir, engineer, Southeastern Pennsylvania Transportation Authority.
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