We live in a big city that has many taxi’s and cars who need to share the road with pedestrians, animals, trucks and buses.  It’s common to have traffic and it’s common for a two lane road to support four+ lanes of traffic.  Believe it or not there is a bit of flow that happens, kind of like braiding one goes to the left, one to the right and one in the middle and we all weave our way down the road.