| Functional Requirements: |
Roadway Traffic Information Dissemination
- The field element shall include dynamic messages signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. v
- The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.
- The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
Roadway Equipment Coordination
- The field element shall include sensors (such as traffic, environmental, and work zone intrusion detection sensors) that receive control information from other field element devices, without center control.
Roadway Work Zone Traffic Control
- The field element shall collect, process, and send work zone images to the center for further analysis and distribution, under center control.
- The field element shall provide fault data for the surveillance (e.g. CCTV), driver information systems, and gates/barriers in work zones to the maintenance center for repair.
- The field element shall provide operational status for the surveillance (e.g. CCTV), driver information systems, and gates/barriers in work zones to the maintenance center.
- Under the control of field personnel within maintenance vehicles, the field element shall include driver information systems (such as dynamic messages signs and highway advisory radios) that advise drivers of activity around a work zone through which they
- Under traffic and maintenance center control, the field element shall include driver information systems (such as dynamic messages signs and highway advisory radios) that advise drivers of activity around the work zone through which they are currently pas
Roadway Field Device Monitoring
- The field element shall include a local interface that allows field personnel to command diagnostic tests on connected field equipment.
- The field element shall include a local interface that provides operational status and fault data for connected field equipment to field personnel.
- The field element shall monitor the operational status (state of the device, configuration, and fault data) of connected sensors (such as traffic, infrastructure, environmental, security, speed) and devices (such as highway advisory radio, dynamic message
- The field element shall send collected fault data to the maintenance center for repair.
- The field element shall send operational status of connected field equipment to the maintenance center.
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