again, what lsc2704 said about Pittsburgh ha, assuming you live near U Pitt campus in PITTSBURGH its doable, as is it for TJ and Temple (TJ is more accessible by transit/walking than Temple but only because its centrally located in downtwn as opposed to the North side). I didn't think about fieldwork so that is a good point. But, you probably can sign up with a car sharing company to have a car frequently for relatively cheap.