Local Field Devices




These devices are typically located along the roadside and are controlled by operators at a local traffic operations center (most likely managed by the local DPW), which aids them in monitoring and managing traffic conditions. The field devices that aids operators in performing their functions are: VMS, Signal Controllers, Reversible HOV, Low-Power FM Radio, Vehicle Detection, Lane Control Signals, Call Boxes and CCTV.


Local Municipalities



Interfaces To

(View Context Diagram)

Archived Data Management System
Bridge Operations Centers
COAST Fixed Route Transit Vehicles
Emergency Vehicle
Local Data Repositories
Local DPW
Local Public Safety Vehicles
Local Road Weather Stations
Local Traffic Management Systems
Road Weather Information System
Salem Traffic Management System
Statewide Transportation Management Center
UNH Fixed Route Transit Vehicles