General Track circuit calculations

[PJW]

Do the IRSE have any books that go through how to carry out track circuit calculations?

IRSE Green Booklet 9 gives good background on dc track circuits but doesn't go into calculations much. I am sure that you'll find standard electrical / scholl physics texts explaining Ohm's Law and Kirchoff's Law; indeed I am sure that you should find that there is plenty on the internet as well; try this one to start
As far as a worked example, there are several attempts on this website; Aditi's 2002 is pretty close to a text book example.