Damned if I know, frankly. I live in an urban region of fairly outstanding public transportation where cars are mainly a nuisance.

I don't really see how "removing the car from the equation" is relevant, though, although I may be misunderstanding the concept. AFAIK the point isn't to get rid of the things (although replacing them with public transportation to as great a degree as possible would be generally sensible), as they're still needed for all kinds of stuff, but to minimize the redunant and/or gratuitious fuel expenditure.