Roadway HOV Control Functional Area


'Roadway HOV Control' 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

TxDOT – Dallas District Roadway Devices
TxDOT – Fort Worth District Roadway Devices

Functional Requirements

1The field element shall include sensors to detect high–occupancy vehicle (HOV) lane usage, under center control.
2The 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.
3The 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.
4The field element shall collect a count of vehicle occupants from passing vehicles using field–vehicle communications.
5The field element shall provide traffic flow measures and information regarding vehicle occupancy (i.e., lane usage) in HOV lanes to the center.
6The field element shall return operational status for the HOV lane sensors to the controlling center.
7The field element shall return fault data for the HOV lane sensors to the center for repair.