Washtenaw: Transit
Larry Krieg, writing on his blog “Wake Up, Washtenaw!” addresses the question of whether a countywide public transit system is affordable by calculating how much residents would save if they gave up one of their cars: “Supposing every household that could, would give up one car and use transit. The theoretical savings for Washtenaw County would be 1,038,286,200, though of course that is unrealistic. Instead, let’s suppose 20% of multi-vehicle households decided to get along with one less. The resulting county-wide savings would be $207,657,240.” He argues that a portion of what individual households save could support a countywide system. [Source]