i think that's SOP for large vehicles. Sometimes you'll find a trucker or heavy equipment op in a car and they'll flash their lights, make space, and sort of escort you through the lanes. Most of the time, you just change lanes and let the other, more nimble, cars react to it.

Yeah, I used to drive a box truck around Atlanta for work. Learned by the second day that you just have to start moving into the lane you want. They'll get out of the way.

Turning yourself into the problem

yes there are a few difficult areas like that around atl. sometimes I'll just get off an exit early or late if I think what I'm about to do is too dangerous for myself or others.

Unfortunately this was a situation where they decided to close all but the right most lane of I75 shortly after the 75/85 split, so I had no choice but to attempt this maneuver in stop and go traffic with very little warning.

I believe there's map software that avoids left turns when possible for situations like this