Roadway Speed Monitoring Functional Area

Description

Vehicle speed sensors that detect excessive vehicle speeds, informing drivers, centers and/or enforcement agencies of speed violations.

Included In

TDOT Fog Zone Speed Detection
TDOT Changeable Speed Limit Signs
City of Chattanooga Speed Monitoring 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.