A Single Train Cannot Collide with Itself

Peter Rukavina

Train signaling tokens:

The operation of a bidirectional single track line has obvious dangers, the most serious of which is the possibility of two trains colliding from opposite directions. The simplest method of controlling such a line is to have only one train operational, on the basis that a single train cannot collide with itself.

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Photo of Peter RukavinaI am . I am a writer, letterpress printer, and a curious person.

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