I was looking for something else and came across this, which is meant for
the use of operators who want to access QR’s network.

It is quite detailed in the information given and doesn’t just cover
Brisbane, but most of the Qld network.

Of course, I found the electrification details interesting, but there is a
lot of other interesting stuff in it for rail gunzels.

https://www.queenslandrail.com.au/business/acccess/Documents/Brisbane%20Metropolitan%20System%20Information%20Pack%20-%20Issue%203%20-%20October%202016.pdf

Cheers,

Mick in rather hot Brisbane