HOV is an acronym for High Occupancy Vehicle(s). It generally describes any vehicle carrying two or more persons on a single journey. 2+ means two or more people must occupy the vehicle; or it simply refers to the number of people in the car.
HOV lanes are sometimes called carpool lanes, diamond lanes, commuter lanes or busways, are special lanes on a roadway reserved exclusively for the use of carpools, vanpools and/or buses. It enables those who carpool or ride the bus to bypass traffic in the adjacent unrestricted general-purpose lanes.
Learn more about HOV lanes at mto.gov.on.ca.
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