And now a whole generation of 12 year old boys thinks that’s what normal sex is like.

Tightrope, a daily trivia game | Britannica

Nov. 12, 2024 

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My Score: 1780

If you go by length instead of ridership it seems extremely plausible. Australia is a big place and building 2 lanes for mostly freight trains is an unnecessary expense.

Sidings/loops/passing tracks, allow trains to pass on a single track, and since things can be more regular scheduled (ideally anyway) with trains, they can work well enough and with much less track building needed.

Which is also why most slices end up as wedges if your aren’t paying attention.