[The Ghost of FReepers Past]

So it is on the track and not on the train? That’s interesting.

[Steely Tom]

So it is on the track and not on the train? That’s interesting.

If it's in the engine, it can be disabled. Like the alert whistles were in that Maryland Amtrak disaster in 1987 that killed 16.

"It was later discovered that someone had disabled the cab signal alerter whistle on lead unit #5044 with duct tape, muting it almost completely."

Source.

[Domangart]

That was not just the train. That was the brand new train with all the latest bells and whistles.

[TexasGator]

“So it is on the track and not on the train? That’s interesting.”

Paragraph 4:

“The tracks had PTC, the train had PTC,” Harris says.