Work's begun on making 440 better. But it's going to take a little sacrifice to get there. I-440 connects a lot of other interstates (I-65, I-24, and I-40). And it's a real problem getting through it during rush hour.
The project has begun with work closing down lanes at night (and other times) to improve the road surface. But more importantly, it'll be three lanes instead of two when done in 2020. The video below from the state of Tennessee Department of Transportation explains it pretty nicely.