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Hampton Roads District Local Field Equipment

Status:

Existing

Definition:

This field equipment represents the field equipment that are used by non VDOT traffic signal operations centers in this region.

Stakeholder:

Hampton Roads District Local Signal Agencies

Architecture Flow Diagrams
which include Hampton Roads District Local Field Equipment:

• Hampton Roads District Local Field Equipment Hampton Roads District Local Signal Centers

Architecture Flows
to/from the Hampton Roads District Local Field Equipment:

Hampton Roads District Local Field Equipment Hampton Roads District Local Signal Centers

• barrier system status


• rail crossing status


• right-of-way request notification


• roadway dynamic signage status


• signal control status


• signal fault data


• traffic images


• traffic situation data

Hampton Roads District Local Signal CentersHampton Roads District Local Field Equipment

• barrier system control


• roadway dynamic signage data


• signal control commands


• signal control device configuration


• signal control plans


• signal system configuration


• traffic detector control


• video surveillance control

National ITS Architecture Subsystems
mapped to the Hampton Roads District Local Field Equipment:

• Connected Vehicle Roadside Equipment Subsystem
• ITS Roadway Equipment Subsystem

National ITS Architecture Services
associated with Hampton Roads District Local Field Equipment:

• TM01 - Infrastructure-Based Traffic Surveillance - Hampton Roads District Local Signal Centers -- (Graphic)
• TM03 - Surface Street Control - Hampton Roads District Local Signal Centers -- (Graphic)

National ITS Architecture Functional Requirements
associated with Hampton Roads District Local Field Equipment:

Roadway Basic Surveillance

1. The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
2. The field element shall collect, process, and send traffic images to the center for further analysis and distribution.

Roadway Signal Control

1. The field element shall control traffic signals under center control.
2. The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.