Yep, I had the same problem, but checked the forum to see if other users had the same issue. Over the past year I have purchased a lot of Orbx products and from my experience, when having problems with other add-on scenery, the first place to check is Orbx. I disabled all of my Orbx scenery and the traffic is no longer there, so the traffic is generated by one of my Orbx add-ons. I have learned that Orbx don't like to play well with others and seem to be trying to take over the sim by spreading their scenery and texture all over. At this point, I don't know which Orbx scenery is causing this, but I think it's Global Vectors. Since Orbx is spread in many areas of the sim, I am considering doing a clean install of p3dv4.5 and just don't use Orbx products anymore.