Drivers who wait until they reach the road workers before trying to merge into the correct lane so they can pass everyone else who already queued up to go through the construction.
I agreed with you up to this point. Everyone queuing up in one lane before you reach the point of lane closure just means that you're slamming all of that traffic into half of the available space, and creating an even longer line and wait. I've been in too many jams where I wanted to get off at an exit two miles down the road, but there was construction five miles past that, and everyone was queuing up in a single lane (thanks to "helpful" truckers who sat in the free lane to prevent people from jumping ahead of everyone else).
Use ALL the available lanes, until you're forced not to. Seriously, it's better.