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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 and City of Winchester.

Stakeholder:

NWR Local Public Works Agencies

Architecture Flow Diagrams
which include NWR Local Signal Centers:

• NWR Local Signal Centers Media Outlets
• NWR Local Signal Centers NWR Local Field Equipment
• NWR Local Signal Centers VDOT Staunton TOC
• NWR Local Signal Centers VDOT TEOC
• NWR Local Signal Centers VSP Center

Architecture Flows
to/from the NWR Local Signal Centers:

NWR Local Signal Centers Media Outlets

• road network conditions

NWR Local Signal Centers NWR Local Field Equipment

• roadway information system data


• signal control data


• traffic sensor control

NWR Local Signal Centers VDOT Staunton TOC

• incident information


• resource deployment status


• resource request


• traffic information coordination

NWR Local Signal Centers VDOT TEOC

• emergency traffic control information


• incident information


• resource deployment status


• resource request


• traffic information coordination

NWR Local Signal Centers VSP Center

• emergency traffic control information


• incident information


• resource deployment status


• resource request


• road network conditions

NWR Local Field EquipmentNWR Local Signal Centers

• request for right-of-way


• roadway information system status


• signal control status


• traffic images

VDOT Staunton TOCNWR Local Signal Centers

• resource deployment status


• resource request


• traffic information coordination

VDOT TEOCNWR Local Signal Centers

• emergency traffic control request


• evacuation information


• incident information


• incident response status


• resource deployment status


• resource request


• traffic information coordination


• transportation system status

VSP CenterNWR Local Signal Centers

• emergency plan coordination


• emergency traffic control request


• incident information


• incident response status


• resource deployment status


• resource request


• threat information


• transportation system status

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

• Emergency Management Subsystem
• Traffic Management Subsystem

National ITS Architecture Services
associated with NWR Local Signal Centers:

• ATMS01 - Network Surveillance - NWR Local Signal Centers -- (Graphic)
• ATMS03 - Surface Street Control - NWR Local Signal Centers -- (Graphic)
• MC07 - Roadway Maintenance and Construction - NWR -- (Graphic)
• MC08 - Work Zone Management - NWR -- (Graphic)

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

Emergency Response Management

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

TMC Signal Control

1. The center shall remotely control traffic signal controllers.
2. The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
3. The center shall collect traffic signal controller fault data from the field.
4. The center shall implement control plans to coordinate signalized intersections, under control of center personnel, based on data from sensors and surveillance monitoring traffic conditions, incidents, emergency vehicle preemptions, the passage of commercial vehicles with unusual loads, equipment faults, pedestrian crossings, etc.

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.