I ran across the annual fact sheet published by the SFMTA and thought it interesting enough to justify a few charts. This data came from the November 2012 fact sheet. As context for the numbers, the population of the city is about 807,000 and the physical area is about 48 square miles.

My favorite fact learned from the MTA report is that there is a specific citation for "driving through a parade" -- hopefully performed very slowly and carefully. And I suppose a terrific number of unmanned cars must be rolling down our hills like golf balls, because there were 65,000 tickets issued for not curbing one's wheels on an incline.