Reply to "Track cleaner cars"

@breezinup posted:

I seem to get about as much black residue off the center rail as on the two outside rails, so it doesn't seem traction tires have much to do with it. If traction tires were a particular problem in making track dirty, it would be a big, recurring topic of discussion, but it's not. The black stuff isn't rubber. If fact, it would seem that the wheels with traction tires would not be creating any sparking that would contribute to the black residue.