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Freeway Management and Operations Handbook

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Description of Figure 14-11: Typical Data Flow Diagram

The Video Subsystem is shown as a circle with data, represented by arrows, flowing into and out of it. Other subsystems shown as circles are Communications, Dynamic Traffic Management, Data Management, and Platform Subsystems.

Arrows show the following data flows:

  • Data for Remote Video Commands is shown flowing into Video Subsystem.
  • Data for Video images is shown flowing into and out of Video Subsystem.
  • Data for Video Alarms is shown flowing from Video Subsystem to Communications Subsystem.
  • Data for Video Control Communications is shown flowing back and forth between Video Subsystem and Communications Subsystem.
  • Data for Video Equipment Commands and for Video Images is shown flowing back and forth between Video Subsystem and Platform Subsystem.
  • Data for Video Equipment Parameters is shown flowing from Data Management Subsystem into Video Subsystem.