Freeway Management and Operations Handbook
Description of Figure 3-4: High Level Architecture Diagram
This diagram is shown as four colored rectangles representing classes filled with smaller white rectangles representing subsystems:
- Travelers (yellow): remote traveler support and personal information access
- Centers (green): information service provider, traffic management, emissions management, emergency management, transit management, toll administration, fleet and freight management, commercial vehicle administration, archived data management, and maintenance and construction management
- Vehicles (blue): maintenance and construction vehicle, transit vehicle, commercial vehicle, emergency vehicle, and vehicle
- Roadside (orange): roadway, toll collection, parking management, and commercial vehicle check.
They are all interconnected by straight lines representing communications links going through one of four pink ovals representing types of communications:
- Wide area wireless (mobile)
- Wireline (fixed-point to fixed-point)
- Vehicle to vehicle
- Dedicated short range
