The white 4runner? My read of that driver’s behavior is that lane change was predictable. The 4runner gives up a huge gap to let a space open up, generally indi

The white 4runner? My read of that driver’s behavior is that lane change was predictable. The 4runner gives up a huge gap to let a space open up, generally indicative of a lane change, but the van wants to keep a constant distance from the car ahead of it. And the van seems to never leave the right-most lane, so I’d expect these events happen pretty often.