For all my rail enthusiasm, more and better bus service may be a more realistic option for improving urban transit, especially for cities looking to move forward in the absence of radical change in federal policy. And, indeed, even in an Yglesian rail-filled fantasy world there would still be a sizable role for buses, and it would be nice for that bus service to be as good as it can be, rather than what usually prevails today. This
plan for 34th street in Manhattan is, in that light, pretty exciting and I bet there are a lot of cities that could do something similar at non-staggering prices.
This article available online at:
http://www.theatlantic.com/politics/archive/2008/04/bus-excitement/44427/