Originally posted by: Tropod Property 0xA92356B4 in the Traffic Exemplar actually affects this, *if memory serves*, even for pedestrian types I believe. Edit: Monorail is the last value in the list *scratches head*.quote> Found this comment from Tropod over on the SC4D boards so I'm guessing only a new traffic simulator could change this and not an additional mod. Jplumbley did say he based his off the Maxis files and thus didn't get the changes that had been made to monorail pollution in the original NAM. May get fixed when the new traffic simulators get added to the official NAM package.