What is displayed at the End of Authority on the PTC screen?

What is displayed at the End of Authority on the PTC screen?

• A. Red Track Line and Red Hash Box
• B. Blue Hash Box
• C. Yellow Hash Box
• D. Green Line

Answer: (A)

End of Authority is shown as the boundary where the train’s permission to move ends, and the PTC display marks that limit with a red track line along the track and a red hash box at the exact location. The red color and boxed marker signal a hard stop boundary, meaning the train must not pass beyond without a new authority. Other visual cues on the screen (such as blue or yellow boxes or different line colors) represent different information, but the red track line with the red hash box is the indicator of the End of Authority.

End of Authority is shown as the boundary where the train’s permission to move ends, and the PTC display marks that limit with a red track line along the track and a red hash box at the exact location. The red color and boxed marker signal a hard stop boundary, meaning the train must not pass beyond without a new authority. Other visual cues on the screen (such as blue or yellow boxes or different line colors) represent different information, but the red track line with the red hash box is the indicator of the End of Authority.