Re: expensive. Hard disagree. To put things in technology terms roads don't scale to meet commuters needs. And as others have pointed out it is a unit cost prob

Re: expensive. Hard disagree. To put things in technology terms roads don't scale to meet commuters needs. And as others have pointed out it is a unit cost problem with your reasoning (total cost per commute). At some scale we aggregate processing and trade latency for bandwidth (busy poll versus hardware interrupts). We trade the ability for everyone to start their journey _right now_ for the ability for lots more of us to get to our destination via a common carriage (be this packets or people the pattern is the same). Where land is cheap and commuter traffic isn't an issue maybe roads make sense but that doesn't mean sprawl is cheap in time-spent.