From the Vision Cincinnati Blog:
The Cincinnati Streetcar project has the potential to change the city of Cincinnati. As a mode of transportation, it is a baby step, the first step towards bigger things and towards connecting more people, and more places. However, as an economic development tool for the city of Cincinnati, the streetcar can leverage more private investment than any other capital project the city could undertake. The permanence of the fixed rails attracts businesses to set up show along the streetcar route in a way that does not occur with other forms of transit.