Just a few weeks ago we were wondering whether falling gas prices meant that Americans would be driving more. The data says: no. (Although the data is, admittedly, nearly two months delayed.) Both gasoline consumption and vehicles miles travelled have fallen every month over the past several months; the miles travelled figure is down 11 months in a row and 4.4% in September.

In the Wall Street Journal, Joseph B. White points out how the cycle is so far following that of the late 1970s and early 80s; gas gets expensive, Americans embrace high-mileage vehicles, less driving, and start thinking about alternative energy sources; demand falls and prices go back down; and then Americans return to their old ways. And complicating this situation is that gas tax revenue goes down when gas consumption goes down; so infrastructure funds dry up. Paradoxically, transportation officials are stuck in the not-so-virtuous cycle: if they encourage behavior that's good for the planet, they'll reduce their income and roads will suffer.

White asks, will we be headed straight back to "trance" state? Will automakers, having embraced development of electric-powered vehicles and other green options, give up in the face of the reality that it's just as cheap to drive a guzzler? Will Americans remember how much they loved their Sunday afternoon drives in the Excursion? Either way, the fallout is complicated.

I really believe that Americans will stay in the shock state. Many of my friends have made significant investment in the low-car lifestyle, buying family bikes and developing new routines around energy conservation. This time, it's not really about the money; I started my car-free lifestyle before prices started rising and the consensus seems to be that we're doing it for the health of the planet and our own health; those values are not to be unpacked for short-term gain. I believe in (some of) the American people. Now our government will have the hard choice of whether to raise gas taxes or find another way to fund the infrastructure shortfall.