A comprehensive parking study would be too expensive to undertake right now, city officials said. The map of Center City and University City expected to be finished by the end of the year will catalog the parking options on every inch of curbside space in those communities. It's a first step to rethinking how curbside space should be used. But there are other possible steps, including an extensive study of how long trucks dwell in loading areas and gathering dispatch data from FedEx or UPS, which are yet to happen in Philadelphia, or engaging with businesses about their loading needs, something the city says is in the works,