As of 2013, rail fares collected were $23 million/yr and it cost $78 million/yr to operate the rail system. The opening of the Metrorail Orange Line in July 2012 significantly increased usage of the system.

Metromover operates throughout the Downtown, Omni, and Brickell neighborhoods, and is composed of three rail loops and 22 stations. Metrorail is composed of two rail lines (Green and Orange lines) with 23 stations radiating from the city center towards outlying neighborhoods north and south of Downtown. MDT's main transit stations are Government Center in Downtown, and the Miami Intermodal Center in Grapeland Heights, which can access the Miami International Airport. Metrobus operates over 93 routes, including the South-Dade Transitway. MDT also operates two rail transit systems: Metrorail and Metromover. MDT operates the Metrobus with their paratransit STS systems run by LSF. As of 2022, the system has 60,734,900 rides per year, or about 236,700 per weekday in the fourth quarter of 2022. It is the largest transit system in Florida and the 15th-largest transit system in the United States. Miami-Dade Transit ( MDT) is the primary public transit authority of Miami, Florida and the greater Miami-Dade County area.

Miami transit