I also question the "2% of riders do not own a car." Doesn't DC have something like a 35% non-car owning population? I think that's 35% of households, not individuals. And, logically, wouldn't these people make up an even bigger percentage of the overall metro ridership than the 65% that own cars? I realize that Virginia and Maryland are also in the equation, but it still seems way off.
Carless