Matt. Another way to skin the cat is to put LEDs in the roadbed that flash as the subway passes over them. I either saw it here or on youtube and it looks great. Sorry, but I don't know much about how the LEDs are triggered. I plan on going that route because it's once and done with no danger of damaging a board. No matter what subway you run, they'll all be sparking. Then you just shut the LEDs off when your running regular trains.
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