This sounds like a thing that the aggression value alone won't fix; AI drivers will still happily rev high on a straight road. And with a much lower aggression value, they'll be even more chicken around corners. I can at least add an editable aggression value ("trafficAggro") at the top of the dynamicTraffic.lua file. Looking back through this thread, I won't be able to get all of the ideas done for this next update. I just wanna get the dropdown fix released.