It doesn't even have to be a situation where lanes are closed. I travel 465 to and from work each day, and on the southeast leg, where I-74 intersects with 465, people tend to lose their minds and I really don't know why. There are ample signs saying the exit is coming up, yet some yahoo still manages to stay in the far left lane until about 100 feet from the exit (on the right) and brings all 4 lanes of traffic to a halt trying to make their exit. Zipper merging will NEVER work while there are human drivers. There are a lot of people that just have no business being on interstates. They should find alternative routes.I HATE those guys.