Roadway Speed Monitoring and Warning Functional Area
Description
Vehicle speed sensors that detect excessive vehicle speeds, optionally based on conditions and vehicle type, informing drivers, centers and/or enforcement agencies of speed violations.
Included In
Functional Requirements
| ID | Requirement |
|---|---|
| 1 | The field element shall include sensors to detect vehicle speeds, under traffic or maintenance center control. |
| 2 | The field element shall include sensors to detect vehicle speeds, under enforcement agency control. |
| 3 | If the speed detected by vehicle speed sensors is determined to be excessive, the field element shall provide a safe speed advisory to passing drivers via a driver information system (such as portable messages signs, field to vehicle communications to in-vehicle signing systems, etc.). |
| 4 | The field element shall base speed advisories to passing drivers on environmental conditions. |
| 5 | The field element shall monitor notify an enforcement agency when a speed violation is detected. |
| 6 | The field element shall return operational status for the vehicle speed sensors to the controlling traffic or maintenance center; including measured speeds, warning messages displayed, and violation records. |
| 7 | The field element shall return operational status for the vehicle speed sensors to the enforcement agency. |
| 8 | The field element shall return fault data for the vehicle speed sensors to the controlling center for repair. |