Hi JG (sorry not sure what to call you?)
Thanks for the link. Your layout is exquisite, a thing of beauty, and I follow your threads for inspiration.
You do have a standard module size but I think you allow the track to go wherever you want it to, including up and down! So there is no standard track alignment between modules whereas most of the "standards" like the 16mm society standard have 150mm track spacing etc. This is not a criticism, I do not imagine you are thinking of merging your modules with other modellers (yours would put theirs to shame!), I imagine you are using modules so you can move the layout at some point in time, for exhibitions or moving house.
I think somebody asked you whether you have any problems with tracks crossing modules not at 90 degrees (alignment issues) but I do not think I saw any answer?