Greetings! This is my first post here, and I'm here because this looks like a forum where people know what they're talking about. I'm looking for some specific information which I know I've seen out there, but right my Googling abilities are completely failing me. So perhaps somebody here knows the answer.
I'm looking for a reputable source of data as to what percentage of the surface area of a city is used by automobiles (for roads, parking lots, gas stations, driveways, et cetera). It would be great to have a city-by-city breakdown for this data, but more generalized statistics would work as well, provided that they're from a respectable source.
Can anybody help me out here? I'd much appreciate it! Thanks!