Do freight trains and passenger trains go on the same rail?

I'm writing a story about two brothers who jump in a boxcar and travel through Australia. I tried looking up freight train routes to find which rail they would take, but it's only giving me passenger train routes. Do passenger train routes and freight train routes take the same rail? (They can't take... show more I'm writing a story about two brothers who jump in a boxcar and travel through Australia. I tried looking up freight train routes to find which rail they would take, but it's only giving me passenger train routes. Do passenger train routes and freight train routes take the same rail?



(They can't take passenger trains because they're on the run and also broke)
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