VDOT Salem District Field Equipment

Status: Existing

Description: These devices are typically located along the roadside and are controlled by operators in the TOC which aids them in monitoring and managing traffic conditions. These devices include Weather Sensors, Traffic Detectors, CCTV, DMS and Ramp Metering.

Stakeholder: VDOT Southwestern Operations

Architecture Flow Diagrams
which include VDOT Salem District Field Equipment:

• VDOT Salem District Field Equipment Rail Wayside Equipment
• VDOT Salem District Field Equipment VDOT Southwestern TOC/ATMS

Architecture Flows
to/from the VDOT Salem District Field Equipment:

VDOT Salem District Field Equipment Rail Wayside Equipment

• rail crossing blockage notification

VDOT Salem District Field Equipment VDOT Southwestern TOC/ATMS

• environmental sensor data


• roadway dynamic signage status


• speed monitoring information


• traffic detector data


• traffic images


• traffic metering status

Rail Wayside EquipmentVDOT Salem District Field Equipment

• arriving train information


• track status

VDOT Southwestern TOC/ATMSVDOT Salem District Field Equipment

• environmental sensor control


• roadway dynamic signage data


• signal control commands


• signal control device configuration


• signal control plans


• signal system configuration


• speed monitoring control


• traffic detector control


• traffic metering control


• video surveillance control

National ITS Architecture Subsystems
mapped to the VDOT Salem District Field Equipment:

• Connected Vehicle Roadside Equipment Subsystem
• ITS Roadway Equipment Subsystem

National ITS Architecture Services
associated with VDOT Salem District Field Equipment:

• TM01 - Infrastructure-Based Traffic Surveillance - VDOT Southwestern TOC -- (Graphic)
• TM05 - Freeway Control - VDOT Southwestern TOC -- (Graphic)
• TM20 - Variable Speed Limits (Fancy Gap I-77) -- (Graphic)