In the process of working on my PRR Panhandle 2.0 layout, different types of tasks pop up at the most unexpected times. For example, I am working on the scenery on both sides of the Ohio River. Some electrical bus work had been done awhile ago. I've strung 4 bus pairs under the river so that they are available at the far (western) end of the layout. But in the middle of this scenery work, I realized I was about to close up an area where track feeders would have to connect to electrical buses.
OK, so no big deal. Position the tracks, staple down the Vinylbed, drill holes for the feeders and...wait a minute. What feeders go where? And how do I stay consistent?
Well, I use a standard (I actually used it for Panhandle 1.0 too.). That's not surprising given I'm modeling the "Standard Railroad of the World", is it? 
So, I am putting it out here for you. If the direction of travel is Left to Right:
- Inner rail is Ground (BLACK)
- Center rail is AC Hot (RED)
- Outer rail is Control or Insulated (WHITE)
I'm using GarGraves track and their pigtails.
I don't tie both grounds together. TMCC doesn't require it. And the Control wire is used to trigger signals.
George
