roads: At this point, we take our roads for granted as if they had always been there. But the history of our roads was built in the last hundred years.

Currently, roads & parking consume an average of 1/4 of the land in the city, even up to 60% of the land in cities like Los Angeles.* Roads themselves are built from oil, so even cars that don't consume petroleum fuel (see the veggie car) are still oil dependent. Freeways divide communities. Try transit instead.