| Stakeholder |
Element Name |
Functional Area/Role |
Functional Area Description |
| TRIMARC |
TRIMARC Lane Control Equipment |
Roadway Basic Surveillance |
This equipment package monitors traffic conditions using fixed equipment such as loop detectors and CCTV cameras. |
| TRIMARC |
TRIMARC Lane Control Equipment |
Roadway Traffic Information Dissemination |
This equipment package includes field elements that provides information to drivers, including dynamic message signs and highway advisory radio. |
| TRIMARC |
TRIMARC Lane Control Equipment |
Roadway Traffic Metering |
This equipment package includes the field equipment used to meter traffic on ramps, through interchanges, and on the mainline roadway. The equipment includes dynamic messages signs to provide guidance and information to drivers at and approaching a meter, including information for any special bypass lanes. |
| TRIMARC |
TRIMARC Traffic Management Center |
Traffic Equipment Maintenance |
This equipment package monitors the operational status of field equipment and detects failures. It presents field equipment status to Traffic Operations Personnel and reports failures to the Maintenance and Construction Management Subsystem. The equipment package tracks the repair or replacement of the failed equipment. The entire range of ITS field equipment may be monitored by this equipment package including sensors (traffic, infrastructure, environmental, security, speed, etc.) and devices (highway advisory radio, dynamic message signs, automated roadway treatment systems, barrier and safeguard systems, cameras, traffic signals and override equipment, ramp meters, beacons, security surveillance equipment, etc.). |
| TRIMARC |
TRIMARC Traffic Management Center |
Collect Traffic Surveillance |
This equipment package remotely monitors and controls traffic sensors and surveillance (e.g., CCTV) equipment, and collects, processes and stores the collected traffic data. Current traffic information and other real-time transportation information is also collected from other centers. The collected information is provided to traffic operations personnel and made available to other centers. |
| TRIMARC |
TRIMARC Traffic Management Center |
TMC Traffic Information Dissemination |
This equipment package disseminates traffic and road conditions, closure and detour information, incident information, driver advisories, and other traffic-related data to other centers, the media, and driver information systems. It monitors and controls driver information system field equipment including dynamic message signs and highway advisory radio, managing dissemination of driver information through these systems. |
| TRIMARC |
TRIMARC Traffic Management Center |
TMC Traffic Metering |
This equipment package provides center monitoring and control of traffic metering systems including on ramps, through interchanges, and on the mainline roadway. All types of metering are covered including pre-timed/fixed time, time-based, dynamic and adaptive metering strategies and special bypasses. Metering rates can be calculated based upon historical data or current conditions including traffic, air quality, etc. |
