The RIPTA bus service can get one almost anywhere in Providence. It's the most inexpensive way to travel around Providence, along with water taxis and ferry boats which operate daily. The government sets taxi rates but working meters are required in all taxis. Lyft and Uber are also available.
Hiring a car is also a great way to get around Providence, especially for visitors wanting to explore outside the city. Most attractions are near enough to reach on foot when travelling through the downtown area of Providence.