ITS Element: NMDOT Variable Speed Limit Signs

Send Your Comments

Description: Variable speed limit signs that are owned and operated by NMDOT on NMDOT State highways or state-owned roads.
Status: Existing
Stakeholder: NMDOT - New Mexico Department of Transportation
Mapping: Roadway
Other Roadway

Interfaces:

 AMPA Regional TMC
NMDOT District 1 TOC
NMDOT District 2 TOC
NMDOT District 4 TOC
NMDOT District 5 TOC
NMDOT District 6 TOC
NMDOT Signal Lab
NMDOT Statewide TMC
Service Packages: ATMS22 - Variable Speed Limits - NMDOT
Functional Requirements:

Roadway Traffic Metering

  • The field element shall provide adjustable speed limits under center control.
  • The field element shall return operational status to the controlling center.
  • The field element shall return and lane control fault data to the maintenance center for repair.

Roadway Variable Speed Limits

  • The field element shall receive commands from the controlling center that establish speed limits by lane.
  • The field element shall display the current speed limits per lane to drivers.
  • The field element shall collect operational status of the variable speed limit field equipment and report the operational status to the controlling center.
  • The field element shall monitor and report faults to the controlling center.

Last updated: 10-10-12