Check, dito to the above. Insulate between facing frogs.
With code 55 blades being so fine they are murder to keep clean and tend to ark a bit, if you're using peco point motors, you can fit a point-motor switch and by feeding from under the running rail fish-plates at the blade end back through the frog (single tag to frog) to the blades. Apart from a gentle wipe with a cleaner block I've had little or no problems with pickup.
Do'nt cross the wires (joke)
pick
nscalenorfolksouthern wrote: I will have one passing loop, two crossovers, and a yard.
For the passing loop (I usually call it a passing siding), you will need AS A MINIMUM to gap or have insulated joiners on the rails connected to the frogs. That is, if your track is running east-west and your passing siding diverges from the main on the south side, you would need to gap or insulate the South rail of the main track (North track) and the North rail of the passing siding (South track) between the entry turnout at each end and the track in between. Then you would need feeders for the insulated rails on each of those in-between sections. (This is a minimum, not necessarily recommended.) For multi-train operation, you would probably at a MINIMUM want on-off control switches for those tracks, and much better, a center-off two-position switch to select which of two throttles powers the track, or a rotary switch for more than 2 throttles. ANY track that can be powered from both ends requires a gap or insulated joiner on the "frog" rail of any turnout going into it.
Crossovers require BOTH rails gapped or insulated on the crossover route, and usually at least one rail gapped on the non-crossing route.
Industrial spurs or dead-end yard tracks which are powered ONLY from the turnout do not need to be gapped, and the track can be electrically "deadened" by throwing the turnout against it.