Don't know where this question should go so please move it if need be.
I have a large yard (20 tracks) at the south end of my route, about 30 miles north is a small yard (2 actually, 3 tracks on one leg, 6 on the other) at this point the mainline turns north west, a branch to the north, a branch to the west. I have several Industries between the large south yard and the small north yard. My question is which yards serve which industries for the local drop off and pick ups?
I think it is obvious that the large yard would service the industries closest to it but what about the ones between the yards that are closest to the small yard? Do they just go by the half way point? Or does the large yard service all of them and the small yard service the branches?
I just don't know how to set up the Ai's
Kevin