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City of Norfolk STC

Status:

Existing

Definition:

City of Norfolk Smart Traffic Center (STC) is a nerve center of an integrated system of advanced technologies including computer software, traffic cameras, centralized signal system for the City of Norfolk. From the City of Norfolk STC, the operators monitor and manage traffic, as well as recognize and respond to incidents. The City of Norfolk STC also instantly delivers information and shares video with the VDOT Hampton Roads TOC.

Stakeholder:

City of Norfolk Public Works Department

Systems Interconnected
with the City of Norfolk STC


Architecture Flow Diagrams
which include City of Norfolk STC:

Architecture Flows
to/from the City of Norfolk STC:

City of Norfolk STC flows into icon City of Chesapeake TMC City of Norfolk STC flows into icon City of Hampton TMC City of Norfolk STC flows into icon City of Norfolk STC Field Equipment City of Norfolk STC flows into icon City of Virginia Beach TMC City of Norfolk STC flows into icon Hampton Roads Local Public Safety Centers City of Norfolk STC flows into icon Hampton Roads Local Public Safety Mobile Centers City of Norfolk STC flows into icon Media Outlets City of Norfolk STC flows into icon NNS Operations Center City of Norfolk STC flows into icon VDOT ADMS City of Norfolk STC flows into icon VDOT Hampton Roads TOC City of Norfolk STC flows into icon VDOT RTIMIS City of Norfolk STC flows into icon VDOT Video Clearinghouses City of Norfolk STC flows into icon VSP Center City of Chesapeake TMCflows into iconCity of Norfolk STC City of Hampton TMCflows into iconCity of Norfolk STC City of Norfolk STC Field Equipmentflows into iconCity of Norfolk STC City of Virginia Beach TMCflows into iconCity of Norfolk STC Hampton Roads Local Public Safety Centersflows into iconCity of Norfolk STC Hampton Roads Local Public Safety Mobile Centersflows into iconCity of Norfolk STC NNS Operations Centerflows into iconCity of Norfolk STC VDOT Hampton Roads TOCflows into iconCity of Norfolk STC VDOT RTIMISflows into iconCity of Norfolk STC VDOT Video Clearinghousesflows into iconCity of Norfolk STC VSP Centerflows into iconCity of Norfolk STC

National ITS Architecture Subsystems
mapped to the City of Norfolk STC:

National ITS Architecture Services
associated with City of Norfolk STC:

National ITS Architecture Functional Requirements
associated with City of Norfolk STC:

TMC Signal Control
  1. The center shall remotely control traffic signal controllers.
  2. The center shall accept notifications of right-of-way requests from pedestrians.
  3. The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
  4. The center shall collect traffic signal controller fault data from the field.
  5. 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 Traffic Information Dissemination
  1. The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
  2. The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
  3. The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
  4. The center shall retrieve locally stored traffic information, including current and forecasted traffic information, road and weather conditions, traffic incident information, information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements), and the definition of the road network itself.
  5. The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, and traveler information providers.
TMC Regional Traffic Management
  1. The center shall exchange traffic information with other traffic management centers including incident information, congestion data, traffic data, signal timing plans, and real-time signal control information.
TMC Incident Detection
  1. The center shall receive inputs from the Alerting and Advisory System concerning the possibility or occurrence of severe weather, terrorist activity, or other major emergency, including information provided by the Emergency Alert System.
  2. The center shall collect and store traffic flow and image data from the field equipment to detect and verify incidents.
  3. The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters, traveler information service providers, border crossings, and intermodal freight depots.
  4. The center shall exchange incident and threat information with emergency management centers as well as maintenance and construction centers; including notification of existence of incident and expected severity, location, time and nature of incident.
  5. The center shall provide road network conditions and traffic images to emergency management centers to support the detection, verification, and classification of incidents.
  6. The center shall provide video and traffic sensor control commands to the field equipment to detect and verify incidents.
Traffic Data Collection
  1. The center shall collect traffic management data such as operational data, event logs, etc.
  2. The center shall assign quality control metrics and meta-data to be stored along with the data. Meta-data may include attributes that describe the source and quality of the data and the conditions surrounding the collection of the data.
  3. The center shall receive and respond to requests from ITS Archives for either a catalog of the traffic data or for the data itself.
  4. The center shall be able to produce sample products of the data available.