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VDOT NRO MPSTOC - Signal Center Field Equipment

Status:

Existing

Definition:

These devices are typically located along the roadside and are controlled by operators in the VDOT NRO MPSTOC- Signal Center which aids them in monitoring and managing conditions. Examples include traffic controllers for the traffic signal system, CCTV, and vehicle detection.

Stakeholder:

VDOT NRO

Systems Interconnected
with the VDOT NRO MPSTOC - Signal Center Field Equipment


Architecture Flow Diagrams
which include VDOT NRO MPSTOC - Signal Center Field Equipment:

Architecture Flows
to/from the VDOT NRO MPSTOC - Signal Center Field Equipment:

VDOT NRO MPSTOC - Signal Center Field Equipment flows into icon NRO Local Transit Centers VDOT NRO MPSTOC - Signal Center Field Equipment flows into icon VDOT NRO MPSTOC - Signal Center VDOT NRO MPSTOC - Signal Center Field Equipment flows into icon VDOT NRO TFO Freight Rail Operationsflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment NOVA District Local Transit Vehiclesflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment NRO Local Transit Centersflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment VDOT NRO MPSTOC - Signal Centerflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment VDOT NRO TFOflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment WMATA Transit Vehiclesflows into iconVDOT NRO MPSTOC - Signal Center Field Equipment

National ITS Architecture Subsystems
mapped to the VDOT NRO MPSTOC - Signal Center Field Equipment:

National ITS Architecture Services
associated with VDOT NRO MPSTOC - Signal Center Field Equipment:

National ITS Architecture Functional Requirements
associated with VDOT NRO MPSTOC - Signal Center Field Equipment:

Roadway Basic Surveillance
  1. The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
  2. The field element shall collect, process, and send traffic images to the center for further analysis and distribution.
  3. The field element shall return sensor and CCTV system operational status to the controlling center.
Roadway Signal Controls
  1. The field element shall control traffic signals at intersections and on main highways for urban and rural areas, under center control.
  2. The field element shall monitor operation of traffic signal controllers and report to the center any instances in which the indicator response does not match that expected from the indicator control information.
  3. The field element shall return traffic signal controller operational status to the controlling center.
  4. The field element shall return traffic signal controller fault data to the maintenance center for repair.
Roadway Signal Priority
  1. The field element shall respond to requests for indicator (e.g., signal) preemption requests from emergency vehicles at intersections, pedestrian crossings, and multimodal crossings.
  2. The field element shall respond to requests for indicator (e.g., signal) priority requests from transit vehicles at intersections, pedestrian crossings, and multimodal crossings.
  3. The field element shall notify controlling traffic management center and maintenance center that the signal timing has changed based on a signal preemption/priority request to help those centers determine whether a fault detected at the signal is a true malfunction or due to a signal override.