I think OP is talking more about city streets, so high speed literature and the Solomon curve doesn't apply so much. There are two distinct behaviors here. Lane

I think OP is talking more about city streets, so high speed literature and the Solomon curve doesn't apply so much. There are two distinct behaviors here. Lane splitting happens when the cars are moving. Filtering happens when the cars are stopped. As someone who commutes on a motorcycle in the city, I don't care much for splitting, but filtering through a traffic jam is incredibly helpful.