Comment Traffic Volume Trends (Score 5, Informative) 314
Ever since the time that gasoline hit $4 here in the US, I've been keeping an eye on the DOT's Traffic Volume Trends. It seems to me that, once Americans realized how much gas could cost (and will permanently cost, eventually), they also realized how much auto travel is superfluous. In particular This chart of the 12-month average for all roads shows a clear pullback in miles driven. Perhaps some of this could be attributable to people being more efficient in their travel; taking care of multiple errands at once, using public transportation much more, etc. Certainly the downturn in the economy has an impact, too.