Downtown Miami features the free metromover running from Brickell to the Arts & Entertainment Center. There is also the free City of Miami Trolley. For a small fee you can ride the Metrorail which connects Downtown Miami to other key spots such as Miami International Airport and there is also the Metrobus system.
In addition to Downtown Miami's impressive public transportaion choices, there is the Brightline, a high-speed passenger rail system that is redefining train travel in America. Launched in 2018 in Florida, Brightline was designed to take cars off the road and offer millions of travelers an eco-friendly way to move between the nation's most visited city pairs.