| Functional Requirements: |
Roadway Traffic Metering
- The field element shall regulate the flow of traffic on ramps, interchanges, and the mainline, under center control.
- The field element shall monitor operation of ramp, interchange, and mainline meters and report to the center any conflicts between received control plans and current system operation.
- The field element shall return ramp, interchange, and mainline meter operational status to the controlling center.
- The field element shall provide indications to the driver that the metering system is active and provide safe transitions between active and inactive status.
- The field element shall return ramp, interchange, and mainline meter fault data to the maintenance center for repair.
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