HOV lanes, or High-Occupancy Vehicle lanes, are special traffic lanes designated for vehicles with multiple passengers, typically two or more. These lanes aim to reduce traffic congestion and encourage carpooling, making travel more efficient for those who share rides. HOV lanes are often marked with specific signs and may have restrictions during certain hours. In some areas, buses and motorcycles may also use these lanes, promoting alternative transportation methods. By prioritizing vehicles with more occupants, HOV lanes help decrease the number of cars on the road and improve overall traffic flow.