So assume three lanes (or more), I guess in some places (everywhere in the U.S.?) the person in the left most lane has the right of way to merge right into a center lane if there is another car that wants to also merge into the center lane from a right lane.
My solution to this is ideally people shouldn't merge if there's a car over directly a couple lanes, but to try to either speed up or slow down to "stagger" the cars so that if you were to merge to center or the other car did, they wouldn't collide with you or you with them.
Is this a standard solved problem on the highways beyond what I've described?