I mean that’s clearly just a toll plaza, right? Not actually a 50-lane highway, that then drops down to 4. Also that’s not 50, looks closer to 25-30 toll lanes.
It’s a bit hard to tell accurately from this picture but I counted the lanes of cars near the bottom somewhere in the 48-50 range though there are only 25 or so actually toll booths so who knows.
In the U.S. we put a sticker on the windshield that gets scanned when the car passes through. While you are supposed to slow down a bit they work just fine at 100km/hour. They could leave the road at 4 lanes and get rid of all of the booths. Minimal traffic back up.
We purchase the stickers at your local grocery store.