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Henrico County TOC Field Equipment

Status:

Existing

Definition:

Field Equipment connected to the TOC in Henrico County includes traffic signal controllers.

Stakeholder:

Henrico County

Architecture Flow Diagrams
which include Henrico County TOC Field Equipment:

• Henrico County TOC Field Equipment Henrico County TOC
• Henrico County TOC Field Equipment Richmond District Local Public Safety Vehicles

Architecture Flows
to/from the Henrico County TOC Field Equipment:

Henrico County TOC Field Equipment Henrico County TOC

• right-of-way request notification


• signal control status


• signal fault data

Henrico County TOCHenrico County TOC Field Equipment

• signal control commands


• signal control device configuration


• signal control plans


• signal system configuration

Richmond District Local Public Safety VehiclesHenrico County TOC Field Equipment

• local signal preemption request

National ITS Architecture Subsystems
mapped to the Henrico County TOC Field Equipment:

• Connected Vehicle Roadside Equipment Subsystem
• ITS Roadway Equipment Subsystem

National ITS Architecture Services
associated with Henrico County TOC Field Equipment:

• PS03 - Emergency Vehicle Preemption - Henrico County -- (Graphic)
• TM03 - Traffic Signal Control - Henrico County -- (Graphic)

National ITS Architecture Functional Requirements
associated with Henrico County TOC Field Equipment:

Roadway Signal Preemption

1. The field element shall respond to signal preemption requests from emergency vehicles.

Roadway Signal Control

1. The field element shall return traffic signal controller fault data to the center.
2. The field element shall return traffic signal controller operational status to the center.
3. The field element shall report current preemption status to the center.
4. The field element shall report the current signal control information to the center.
5. The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations.
6. The field element shall control traffic signals under center control.
7. The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.