Smart growthers and other rail nuts love to talk about how rising fuel prices are leading people to ride mass transit. The truth is that, in March, 2008, driving experienced one of the greatest declines in history (from March of the previous year), but mass transit ridership also declined. So people are hardly taking transit as a substitute for driving.
Instead, says Nielsen, people are spending less on discretionary items, combining trips, and buying in-store brands instead of name-brand items. Riding transit? Not so much.