Looks like the improvements to the ramp to get onto US 29 North from Interstate 40 and the highway up to Florida Street are finished. Instead of northbound 29 drivers funneling into a single lane at the exit, you now have two north bound lanes to travel. The ramp from MLK now has a merge onto 29 instead of having a free lane of travel. Fortunately they widened the highway so that the merge lane goes all the way to the Florida Street exit.
This won't eliminate the slowdowns and backups on 40 as people try to exit, but should help out a bit.