It is strongly recommended that you have or rent a car while visiting Tucson;
some of the most interesting destinations are almost unreachable
without one. Moreover, parking is typically easy and there is rarely
very problematic traffic. In the downtown, however, Tucson is very
biker- and walker-friendly. There is one single-track trolley that
runs on Fourth Avenue and Broad Street, a quaint museum piece that
costs a quarter and is useful while shopping or visiting UA. Otherwise,
the public busses radiate from Broad Street transporting people
between the city center and the residential outskirts – but
they don’t go too many places that would interest a visitor.
Tucson has a small but efficient airport. Depending on prices, you
might actually find yourself better off flying into Phoenix and
then driving the ninety minutes into town.