[Tade0]

There's a train line close to me which runs on tracks parallel to a freight line.

The company maintaining the latter was asked several times if their infrastructure could be used, but they refused each time, so the passenger line, which was always there, just in a state of disrepair, had to be refurbished at great expense.

I'm happy with the result though because like in every track having just one line, the trains are amazingly punctual.