Thanks Chip. Why didn't I think of that?
Here goes.
Green in the main.
Red in the A/D track.
Brown is the yard.
Grey is engine service.
Blue is yard lead.
Well, the colors didn't come out.
1st photo, left to right. Main, yard lead, engine service.
2nd, main, yard lead and A/D track, start of engine service, start of yard.
3rd. main, AD, yard
4th, main, AD, yard