Mass Transit Sprawl?

Typically, mass transit is viewed as a counter-balance to vehicular-driven sprawl.

But, this article suggests that even mass transit can be a sprawl-generator:

Lawrence Solomon writes in Saturday's Financial Post that billions in taxpayer dollars are funding uneconomic transit lines that spread the tentacles of urban sprawl ever farther.

"In the popular conception, the private automobile causes sprawl and public transit is either benign or beneficial as a factor of development. This misreads history, including fairly recent history."

Definitely an interesting analysis as it shows that even a positive idea--like reducing vehicular miles traveled through increasing transit--can be implemented in unsustainable ways.