a lane, or lanes, dedicated to the exclusive use of buses, vanpools and carpools
a lane reserved for buses, and other vehicles carrying three or more people, as well as bicycles and motorbikes
a traffic lane reserved at certain times for buses and vehicles carrying two or more people
High Occupancy Vehicle Lane: The technical term for a carpool lane, commuter lane or diamond lane. (SACOG)
High Occupancy Vehicle Lane - Highway lane dedicated to vehicles with defined minimum number of passengers. HOV lane designations are typically in effect only during morning and afternoon commute hours.
A lane on a street or highway reserved primarily for the use of high occupancy vehicles, either all day or during specified periods, for example, during rush hours.