Greater Miami Expressway (GMX) Agency
Description: The Greater Miami Expressway (GMX) Agency, formerly known as the Miami–Dade Expressway Authority (MDX), is a state–sanctioned, locally administered, public agency responsible for the operation and maintenance of five major expressway facilities in Miami–Dade County, Florida.
Inventory Elements:
Projects:
Roles and Responsibilities:
Electronic Toll Collection for Southeast Florida Regional ITS Architecture - FDOT Districts 4 and 6
- Operate toll collection equipment on GMX toll roads.
- Provide customer account information using a Web site.
- Coordinate with other toll agencies using a reciprocity network for electronic toll payment collections.
- Coordinate with the FDHSMV and county courts to collect tolls from violators.
- Operate a customer service center to process toll transactions and handle violations processing.
- Operate and manage GMX Express Lanes.
Highway Management for Southeast Florida Regional ITS Architecture - FDOT Districts 4 and 6
- Collect road weather information.
- Control highway traffic with lane control signals, including reversible lanes.
- Determine highway travel times.
- Provide traffic information reports to other agencies.
- Monitor highway surveillance cameras.
- Monitor highway traffic sensors.
- Operate freeway traffic information devices, such as DMS and HAR equipment.
- Operate express lanes on GMX highways.
Incident Management (Traffic and Maintenance) for Southeast Florida Regional ITS Architecture - FDOT Districts 4 and 6
- Perform network surveillance for incident detection and verification, and send traffic/incident information and traffic images to public safety agencies and EOCs.
- Coordinate incident response for incidents on or adjacent to state-owned roadways with public safety in surrounding counties and municipalities, including county and local EOCs.
- Provide incident information to other traffic management and public safety agencies.
- Coordinate incident response with county and local public works departments, including response for scheduled events.
- Provide incident information to travelers on state-owned roadways using traffic information devices (e.g., DMS and HAR units), local ISPs, and Web sites.
- Coordinate maintenance resource response to incidents on state-owned roadways with the FHP, and county and local public safety agencies.
- Operate and dispatch Road Rangers Service Patrol vehicles.
Information Dissemination for Southeast Florida Regional ITS Architecture - FDOT Districts 4 and 6
- Coordinate emergency plans, and incident responses and resources with the county EOC/warning points.
- Coordinate evacuation and re-entry plans with the county EOC/warning point.
- Provide traffic and road network information to local transit agencies, including the MDTA.
- Provide traffic information to travelers using GMX DMS equipment.
- Provide traffic information to travelers using GMX public information systems, private companies, Florida 511, and the media.
Maintenance and Construction for Southeast Florida Regional ITS Architecture - FDOT Districts 4 and 6
- Receive maintenance resource requests for incident response from county fire/EMS/sheriff, local police/fire/EMS, the FHP, and 911 emergency call centers.
- Provide environmental data to private weather providers; RTMCs; regional emergency management agencies and transit agencies; and county and city maintenance sections.
- Coordinate maintenance resources for incidents with the FDOT District maintenance and construction operations.
- Provide maintenance and construction information to FDOT District 6 maintenance and construction operations; regional maintenance and construction operations; and the traveling public using portable DMS equipment.
- Coordinate with city and county maintenance and construction systems, and the FDOT District maintenance and construction sections.
- Distribute work zone information to local transit agencies, local emergency management agencies, private rail operations, the media, and multimodal service providers.
Last Updated 4/16/2024