Over on the Switchboard blog written by Kaid Benfield, he writes today about a free downtown circulator that Baltimore has recently put in place. (pasted below) This is a great heads-up to those cities that are cutting back on transit in tough times. I’ve thought for a while that we need an entirely new service model for transit in most American cities, and will write about this more in future posts. The reality is the current system in most cities is so completely unsupported by fares that we might as well have completely free zones in order to encourage denser, walkable development…