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[quote user="richhotrain"]He has already isolated the two reversing sections. The Ferry Yard is shorting out because the polarities don't match the connecting (diagonal) track.[/quote] I agree with this. Some clarifying and amplifying information to my reply above. There are 3 (possibly 6) ways to go about it (in order of best to least best way IMO): 1a.) Re-wiring the ferry area so that the proper feeders are on the proper rails for the situation (what Rich suggesting, I think).  This is probably the best choice from a not causing confusion later standpoint.  Could be a pretty big chore from a physical standpoint. 1b) Possibly could just connect the feeders to the opposite bus wire underneath the layout (electrically the same thing, but does not maintain your color coding). 2a) Install a Circuit breaker for the ferry area, and swap the out puts (which would make the color coding incorrect, but the wiring would work electrically).  This would require a double gap at the point indicated. 2b) Cut the bus wire going to the ferry section, re-attach said bus wire to the main bus, but swap the wires. 3)  Gap and install an auto reverser.  This would correct the short.  Kind of expensive way of going about it, and it would only sense a polarity mis-match once. 4) Power route the ferry area.   Possibly would require a turnout designed for power routing, and relying on the points to feed the whole area.  (least desirable option from reliability standpoint).  I would go with 1a, 1b, or 2a.   2b would be the quickest.  2a second quickest. 1b third. If you do anything but 1a, document and attach it to the layout or wherever you might keep troubleshooting documents for your layout.   If you go with 1a, while you are down there, put in a circuit breaker so that while you are switching, a second train running around the layout doesnt get stopped if you cause a short (happens to pretty much all of us). All bets are off except 1a, 1b if I am mis-understanding how the OP wired his layout.
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