This sounds absurd, to tell motorists to not drive in the wrong lanes, but that’s exactly what happens in places like China. If there’s a traffic jam in one direction, cars just start using the opposite lane.
I’ll have to dig up my pictures from Tehran in the early 70’s where drivers align their cars at red lights that looks like opposing football teams on the field with a traffic cop right in the middle of the intersection. Its amazing to watch what goes on when the light turns green.
States and localities experiencing totality have had months, if not longer, to plan for this. What in tarnation have they been doing??