Downtown circulator

In the United States, a downtown circulator is a road, bus or streetcar system to distribute traffic or people through a downtown area.
Examples include:

Miami, Florida's Downtown Distributor
Pawtucket, Rhode Island's Downtown [Circulator (Pawtucket)|Downtown Circulator]
The former DC Circulator bus system in Washington, D.C.
Tulsa, Oklahoma's Inner Dispersal Loop formed by I-444 and I-244.
Kansas [City, Missouri]'s downtown freeway loop
Molly the Trolley of Trinity Metro in downtown Fort Worth. One everyday line and one lunch weekday line.
Lymmo of LYNX in Orlando. Four lines.
Music City Circuit of WeGo Public Transit of Nashville. Two free lines.

Circulator bus

A circulator bus is a bus serving an area confined to a specific locale, such as a downtown area or suburban neighborhood, with connections to major traffic corridors.