It usually peaks around 7:45-8:00 AM and gets gradually better. If you hear warnings of an accident you can take Briley Pkwy and follow it through to I-24, it does change from a divided highway to a 4 lane road with traffic signals for about the last mile and a half. The worst part will be the I65 part as you will be part of inbound traffic, on I24 you will be heading outbound. If you stay on I65, make sure you are in one of the 2 left lanes as you head into downtown, the I24/40 east junction exits to the left; then you will need to move to one of the 2 right lanes as I24 east junctions to the right when it splits from I40.