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

Local City Field Equipment
Yakima Field Equipment
Yakima County Field Equipment

Functional Requirements

IDRequirement
1The field element shall include sensors to detect vehicle speeds, under traffic or maintenance center control.
2The field element shall include sensors to detect vehicle speeds, under enforcement agency control.
3If 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.).
4The field element shall base speed advisories to passing drivers on environmental conditions.
5The field element shall monitor notify an enforcement agency when a speed violation is detected.
6The 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.
7The field element shall return operational status for the vehicle speed sensors to the enforcement agency.
8The field element shall return fault data for the vehicle speed sensors to the controlling center for repair.