Transit riders = newspaper readers?

Interesting quote toward the end of a David Carr column on newspapering in today's New York Times (emphasis added):

With mass transit, a downtown full of history and warm bodies, a tabloid (The Philadelphia Daily News, which is also owned by McClatchy [along with the Philadelphia Inquirer] and also on the block) to stir the pot and newsstands on many corners, Philadelphia is a glorious newspaper town.

Gut instinct suggests that people who aren't driving themselves to work can use their commute time to read the paper. With so many cities putting in their first light-rail and commuter-rail systems in the last decade, it should be possible to see if you can correlate transit use and newspaper circulation.

Interesting thought, the idea that "transit-oriented development" can refer to culture as well as real estate.