FDOT District 5 Regional ITS Architecture (Final)

Element Expanded Functional Requirements: CFX Field Equipment


Functional Area: 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 collect, digitize, and send multimodal crossing and high occupancy vehicle (HOV) lane sensor data to the center for further analysis and storage.
  4. The field element shall return sensor and CCTV system operational status to the controlling center.
  5. The field element shall return sensor and CCTV system fault data to the controlling center for repair.
Functional Area: Roadway Probe Data Communications
  1. The field element shall communicate with passing vehicles for traffic data link time calculations and send collected data to the controlling center; identification will be removed to ensure anonymity.
  2. The field element shall communicate with on-board equipment on passing vehicles to collect current vehicle position, speed, and heading and a record of previous events (e.g., starts and stops, link travel times) that can be used to determine current traffic conditions.
  3. The field element shall communicate with on-board equipment on passing vehicles to collect current status information and a record of previous events (e.g., temperature, wiper status, headlight status, traction control system status) that can be used to determine road and surface weather conditions.
  4. The field element shall communicate with on-board equipment on passing vehicles to collect vehicle trip information (e.g., origin and destination information, travel times) that can be used to support transportation planning.
  5. The field element shall communicate with on-board equipment on passing vehicles to collect a history of precise positioning information that can be used to derive or verify accurate roadway geometry and lane features for use by map update providers.
  6. The field element shall aggregate and forward collected probe information to the center.
  7. The field element shall provide roadside equipment operational status to the center.
  8. The field element shall provide roadside equipment fault indication to the center for repair.
Functional Area: Roadway Traffic Information Dissemination
  1. The field element shall include dynamic messages signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
  2. The field element shall include driver information systems that communicate directly from a center to the vehicle radio (such as Highway Advisory Radios) for dissemination of traffic and other information to drivers, under center control.
  3. The field element shall include pedestrian information systems under center control (e.g. warning pedestrians of a potential hazard, or providing mandatory instructions as to the availability of pedestrian access).
  4. The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
  5. The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.