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I don't think it is. When you install a signal controller there's this diode board, one diode for each phase. You use a wirecutter and remove diodes in order to tell the controller which phases ought to be allowed at the same time. What you're describing would only be possible if all signals were installed with all diodes removed.

I can't speak for the whole industry, but back when I was part of it, thats how our controllers worked. Admittedly, I don't think New York City was a customer.




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