CSXT: BLET exposes safety flaws with “zero-to-zero” technology that controls braking and urges the FRA to conduct further study - Brotherhood of Locomotive Engineers and Trainmen

CSXT: BLET exposes safety flaws with “zero-to-zero” technology that controls braking and urges the FRA to conduct further study - Brotherhood of Locomotive Engineers and Trainmen

The BLET filed extensive comments with the FRA on March 17 raising questions about CSXT’s use and implementation of Trip Optimizer/Air Brake Control (TO/ABC, or “zero-to-zero”) technology. If fully approved, CSXT’s Product Safety Plan (PSP) would, for the first time, allow software to completely control a train’s air, independent, and dynamic braking systems. In other words, software would operate and control the train’s movements — not a certif…