Don't buy Atlas terminal joiners, just get some wire, #20 or so, and solder it to joiners. You cna make 100 for the price of a pair of the ones with wire already on them.
On something this small, one bus run across about where the view block goes horizonatally should be good. If those are Atlas turnouts, then apply joiners with feeders to all 3 legs of every turnout and maybe one more at the top center of the main line. Should be plenty for reliable power on that size of a layout - should be 12 feeders.
No need to break anything apart, no insulated joiners necessary
--Randy
Modeling the Reading Railroad in the 1950's
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Actually, you can probably power the whole layout with 2 feeders without a bus. If that doesn't work successfully over time because of benchwork and/or track movement in an environment with wide swings of temperature and/or humidity, you can always add a bus and feeders. You don't need to feed all 3 legs of the turnouts, but if the turnout frogs are not isolated, you do require insulating gaps in the crossover rails between the turnouts of the crossover.
If you use Atlas joiners (which are looser fitting than some others such as Walthers/Shinohara), solder your feeders to rails, not joiners, unless you solder the joiners to the rails (which is a good thing to do on your curved track; join the straight sections of flex before curving them).
Don't make more work and expense for yourself unless absolutely necessary.
Dante
ManOWar Do I need to install a main feeder bus wire under the layout? If so, how many feet between feeders to the track should I space them? I am going to use Atlas Code 83 terminal joiners to accomplish this. Should I insulate/block the main loop of track (main line) into separate sections or just leave it as one big continuous loop? Should I insulate/block the siding and spurs?
Alton Junction