In August, Americans drove 15 billion miles fewer than during the same month in 2007. That's a 5.6 percent decline. At the same time, the use of public transportation spiked.
But the average price of gas is down a dollar in the past four weeks. So will people still keep riding buses and trains? The answer appears to be yes. For now. Commuters are looking for any way to save money, given the economy, and driving less still saves them money--even with gas prices lower.