Many of us on this page like to think that as gas prices go up, people will switch to commuter rail and more TOD will occur. I myself often dream of a turning point(maybe 10 bucks a gallon) where real estate prices of exurbs plummet, and TOD highrises near rail stops start springing up like weeds. I wonder though about the impact on working class families that have no other means to get to their jobs. In a city like chicago, many within the city limits have the options of taking public transport, but what about all these far flung manufacturing jobs that aren't linked by rail. Living in CA for school, I realize that there are many working class people that would be screwed if the gas prices were to go up so high. Not to mention the added cost for transporting goods. What effect would this have on say grocery prices? I just wonder whether it would be too painful a process to withstand, and I wonder whether this would necessarily benefit cities as much as we think it would. Anybody have any thoughts on this or seen any good studies?