Thanks for those thoughts Dave. I used the dilute ballast glue technique for years on various HO & HOn3 layouts, but I don't see it being at all effective in my current situation. It is not so much just right at the trackage that the problem originates, but rather throughout the whole yard. Just walking along a couple of feet from the track will cause dust to rise and even "puff" in the direction of the track so unless I took Rogers suggestion to the max and oiled, or glued as you recommend, the entire yard which is over 1/2 acre, then I don't think working from that direction will solve the problem. I believe it need to be solved at the end where the mechanicals are present.
Tri-Flow has long been one of my bike chain and other actuators lubes, though only the "wet" type so far. I will be looking into the "dry" version very soon.