DFW13L From , joined Dec 1969, posts, RR: Reply 1, posted (7 years 7 months 3 weeks 3 days 19 hours ago) and read 3931 times:
You can just rename the PAI_traffic.bgl ending to something else. That will disable your PAI traffic.
Another way of doing it is to create a new folder in your /scenery/world/scenery folder where your traffic files are, and place it inside that folder. That way the computer can't find it, and if you want to restore it all you have to do is pull it back out of that folder. That's what I did when I experimented with Traffic 2005.