Roadway Signal Controls Functional Area
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Description
Field elements including traffic signal controllers for use at signalized intersections; also supports pedestrian crossings.
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Functional Requirements
| ID | Requirement |
|---|
| 1 | The field element shall control traffic signals under center control. |
| 2 | The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing. |
| 3 | The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations. |
| 4 | The field element shall report the current signal control information to the center. |
| 5 | The field element shall report current preemption status to the center. |
| 6 | The field element shall return traffic signal controller operational status to the center. |
| 7 | The field element shall return traffic signal controller fault data to the center. |
| 8 | The field element shall report current transit priority status to the center. |