• Jay@lemmy.ca
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      13 days ago

      You already found the answer but I was going to comment that the pic was a joke… a train wouldn’t even notice those things on the track.

      They do have derailers that are designed to specifically pop a train off the tracks though. They are made of steel and are usually put on the end of secondary lines just before they meet a normal line. In the event that if a train car rolls away it ensures that it can’t roll into an active line and cause an accident but will instead get derailed and popped off the tracks.

      https://en.wikipedia.org/wiki/Derail