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NWR Local Signal Centers

Status:

Existing

Definition:

The element captures agencies that operate signal systems in Northwestern Region with similar functionality such as City of Charlottesville, City of Harrisonburg, and City of Winchester.

Stakeholder:

NWR Local Public Works Agencies

Architecture Flow Diagrams
which include NWR Local Signal Centers:

• NWR Local Signal Centers NWR Local Field Equipment
• NWR Local Signal Centers VDOT NWRO TOC/ATMS
• NWR Local Signal Centers VSP Division Office

Architecture Flows
to/from the NWR Local Signal Centers:

NWR Local Signal Centers NWR Local Field Equipment

• roadway dynamic signage data


• signal control commands


• signal control device configuration


• signal control plans


• signal system configuration


• traffic detector control

NWR Local Signal Centers VDOT NWRO TOC/ATMS

• emergency traffic coordination


• incident information


• resource deployment status


• resource request


• road network conditions

NWR Local Signal Centers VSP Division Office

• emergency traffic control information


• incident information


• resource deployment status


• resource request


• road network conditions

NWR Local Field EquipmentNWR Local Signal Centers

• right-of-way request notification


• roadway dynamic signage status


• signal control status


• signal fault data


• traffic images

VDOT NWRO TOC/ATMSNWR Local Signal Centers

• emergency traffic coordination


• incident information


• resource deployment status


• resource request


• road network conditions

VSP Division OfficeNWR Local Signal Centers

• emergency plan coordination


• emergency traffic control request


• incident information


• incident response coordination


• incident response status


• resource deployment status


• resource request


• threat information


• transportation system status

National ITS Architecture Subsystems
mapped to the NWR Local Signal Centers:

• Archived Data User System Terminator
• Emergency Management Center Subsystem
• Traffic Management Center Subsystem

National ITS Architecture Services
associated with NWR Local Signal Centers:

• MC05 - Roadway Maintenance and Construction - NWR -- (Graphic)
• MC06 - Work Zone Management - NWR -- (Graphic)
• TM01 - Infrastructure-Based Traffic Surveillance - NWR Local Signal Centers -- (Graphic)
• TM03 - Surface Street Control - NWR Local Signal Centers -- (Graphic)
• TM07 - Regional Traffic Management (PSAP I-64 CIP) -- (Graphic)

National ITS Architecture Functional Requirements
associated with NWR Local Signal Centers:

TMC Incident Detection

1. The center shall collect and store traffic flow and image data from the field equipment to detect and verify incidents.
2. The center shall provide video and traffic sensor control commands to the field equipment to detect and verify incidents.

TMC Signal Control

1. The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
2. The center shall remotely control traffic signal controllers.
3. The center shall collect traffic signal controller fault data from the field.
4. The center shall collect traffic signal controller operational status and compare against the control information sent by the center.

Emergency Response Management

1. The center shall provide the capability to remotely control and monitor CCTV systems normally operated by a traffic management center.