Based on traffic conditions yesterday, high gas prices certainly didn't seem to be keeping people off the roads, but that's why we rely on data and the data shows a fairly large decline in driving recently showing that even in a country where public policy massively, massively, massively subsidizes driving and provides for few alternatives that people still do respond to incentives. What we need to do now is start subsidizing driving less (including through implicit subsidies like parking regulations) and start plowing some of the savings into better service on our existing transit routes and the creation of new ones.