What Transponders Does The G.M.X. Greater Miami Expressway Uses

The Greater Miami Expressway Agency (GMX) operates its expressways using an all-electronic tolling system, which means no cash payments are accepted. The following transponders are supported on GMX-managed toll roads:

1. SunPass

• • The primary transponder used in Florida, including on GMX expressways.
  • Offers discounted toll rates compared to toll-by-plate.
  • Works across Florida and in states that are part of the SunPass interoperable network (like Georgia and North Carolina).

2. E-ZPass

• • Recently accepted on Florida toll roads, including GMX expressways.
  • E-ZPass is widely used in the northeastern and midwestern United States, making it convenient for out-of-state drivers.

3. Toll-By-Plate (Video Tolling)

• • If a driver doesn’t have a transponder, cameras capture the license plate, and an invoice is mailed to the registered vehicle owner.
  • Typically incurs higher toll rates compared to SunPass or E-ZPass.

Interoperability

• • GMX supports interoperability with transponders that are part of the SunPass network and the broader tolling alliances with other states, providing seamless travel for users.

If you frequently use GMX expressways, getting a SunPass can save money on tolls and ensure faster processing at toll points. For occasional users, E-ZPass or Toll-By-Plate options are also available.