>That would require more parking width than travel lane width on any given segment with parking Not sure about Houston, but that is the case in many dense US c

>That would require more parking width than travel lane width on any given segment with parking Not sure about Houston, but that is the case in many dense US city-suburbs. They'll have two-way roads with parking on both sides, and the roads will be about three cars wide. The result is cars parked on both sides, with drivers sharing the middle lane for both directions of travel. When you see someone driving towards you, it's a game of chicken to see who will temporarily pull off into a vacant parking spot. It seems to happen because the lots aren't big enough for 2-4 car garages and driveways. And for our friends across the ponds, yes: US households really do demand space for at least 2-4 cars per family.