It is a valid point, but I think "most" traffic I see have one single occupant. Perhaps we could find a way to enforce HOV like rules to certain roads and parki

It is a valid point, but I think "most" traffic I see have one single occupant. Perhaps we could find a way to enforce HOV like rules to certain roads and parking spaces. And also include those with handicap stickers. If we eliminated single occupant cars and were left with mothers driving with young kids we would have a huge safety and congestion improvement.