Roadway HOV Control (Equipment Packages*)

This equipment package monitors and controls high occupancy vehicle (HOV) and high occupancy toll (HOT) lanes. It includes traffic sensors that monitor HOV lane usage and display equipment such as lane control signals that provide lane status to drivers.

Included In:

Functionality:

    Functional Requirements*:
    1. The field element shall include sensors to detect high-occupancy vehicle (HOV) lane usage, under center control.
    2. The field element shall include driver information systems to notify users of lane status for lanes that become HOV or High Occupancy Toll (HOT) lanes during certain times of the day on freeways, under center control.
    3. The field element shall include freeway control devices, such as ramp signals and mainline metering and other systems associated with freeway operations that control use of HOV lanes, under center control.
    4. The field element shall collect a count of vehicle occupants from passing vehicles using field-vehicle communications.
    5. The field element shall provide traffic flow measures and information regarding vehicle occupancy (i.e., lane usage) in HOV lanes to the center.
    6. The field element shall return operational status for the HOV lane sensors to the controlling center.
    7. The field element shall return fault data for the HOV lane sensors to the center for repair.

    Pspecs:

Inputs/Outputs (Included Architecture Flows)

Source Architecture Flow Destination
Roadway driver information Driver
Roadway hov data this architecture flow either has been or will be addressed by ITS Standards Traffic Management
Roadway lane management information this architecture flow either has been or will be addressed by ITS Standards Traffic Management
Roadway traffic flow this architecture flow either has been or will be addressed by ITS Standards Traffic Management
Traffic Management lane management control Roadway
Traffic Management traffic sensor control this architecture flow either has been or will be addressed by ITS Standards Roadway
Vehicle vehicle occupancy Roadway
Vehicle Characteristics vehicle characteristics Roadway

    - This icon indicates that the associated architecture flow either has been or will be addressed by ITS Standards. Select the architecture flow for more information on relevant standards activities.