Roads are congested and typically 2 lanes across. Vehicles constantly swerve around each other, spending almost equal amounts of time in the lane of opposing traffic. When it comes to right of way, might makes right; meaning busses usually make efforts to swerve back into their lane only when facing a larger truck. Scooters and cars must hug the sides of the road to squeeze through on their side of the road. Many large vehicles, like buses and trucks, simply prefer to drive straight down the middle of the road, as if there was a third lane.
Organized chaos (= ha ha. I’m gonna miss this place when I leave.