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VDOT Fredericksburg District Traffic Signal Center

Status:

Existing

Definition:

Within the District there are both closed loop signal systems and independent signals, however, central traffic control is able to communicate and monitor all traffic signals within the District. The Fredericksburg District Signal System is responsible for controlling signals in the 14 counties of Fredericksburg. The signals in the 14 counties will be shared control between the District Traffic Engineering and the TOC. The TOC primarily taking control in emergency situations.

Stakeholder:

VDOT Fredericksburg District Office

Systems Interconnected
with the VDOT Fredericksburg District Traffic Signal Center


Architecture Flow Diagrams
which include VDOT Fredericksburg District Traffic Signal Center:

Architecture Flows
to/from the VDOT Fredericksburg District Traffic Signal Center:

VDOT Fredericksburg District Traffic Signal Center flows into icon Fredericksburg District Local Public Safety Centers VDOT Fredericksburg District Traffic Signal Center flows into icon Fredericksburg Regional Transit System VDOT Fredericksburg District Traffic Signal Center flows into icon Freight Rail Operations VDOT Fredericksburg District Traffic Signal Center flows into icon VDOT Fredericksburg District Maintenance and Construction Residencies VDOT Fredericksburg District Traffic Signal Center flows into icon VDOT Fredericksburg District Traffic Signal Center Field Equipment VDOT Fredericksburg District Traffic Signal Center flows into icon VDOT VaTraffic Fredericksburg District Local Public Safety Centersflows into iconVDOT Fredericksburg District Traffic Signal Center Fredericksburg Regional Transit Systemflows into iconVDOT Fredericksburg District Traffic Signal Center Freight Rail Operationsflows into iconVDOT Fredericksburg District Traffic Signal Center Media Outletsflows into iconVDOT Fredericksburg District Traffic Signal Center Passenger Rail Operationsflows into iconVDOT Fredericksburg District Traffic Signal Center VDOT Fredericksburg District Maintenance and Construction Residenciesflows into iconVDOT Fredericksburg District Traffic Signal Center VDOT Fredericksburg District Traffic Signal Center Field Equipmentflows into iconVDOT Fredericksburg District Traffic Signal Center VDOT VaTrafficflows into iconVDOT Fredericksburg District Traffic Signal Center

National ITS Architecture Subsystems
mapped to the VDOT Fredericksburg District Traffic Signal Center:

National ITS Architecture Services
associated with VDOT Fredericksburg District Traffic Signal Center:

National ITS Architecture Functional Requirements
associated with VDOT Fredericksburg District Traffic Signal Center:

Collect Traffic Surveillance
  1. The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
  2. The center shall maintain a database of surveillance and sensors and the freeways, surface street and rural roadways, e.g. where they are located, to which part(s) of the network their data applies, the type of data, and the ownership of each link (that is, the agency or entity responsible for collecting and storing surveillance of the link) in the network.
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.
Traffic Maintenance
  1. The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.
  2. The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair.
  3. The center shall exchange data with maintenance centers concerning the reporting of faulty equipment and the schedule/status of their repair. Information exchanged includes details of new equipment faults, and clearances when the faults are cleared.
Traffic Data Collection
  1. The center shall collect traffic management data such as operational data, event logs, etc.
TMC Transportation Operations Data Collection
  1. The center shall collect real-time information on the state of the regional transportation system including current traffic and road conditions, weather conditions, special event and incident information.