What does HOV stand for?

HOV stands for High Occupancy Vehicle, which refers to vehicles that carry more than a specified number of passengers, usually two or more. The concept is central to transportation policy and urban planning as it aims to reduce traffic congestion, lower emissions, and encourage carpooling. High occupancy vehicles can include cars with multiple passengers, vans, and buses that utilize designated carpool or HOV lanes. These lanes are designed to promote the use of public transportation and shared rides, making travel more efficient during peak traffic times.

The other terms do not accurately describe the HOV concept. For example, Heavy Overweight Vehicle pertains to vehicles that exceed weight limits and does not relate to occupancy. Highway Overpass Vehicle is not a recognized category within transportation terminology, and High Operational Volume typically refers to traffic flow metrics rather than vehicle occupancy. Hence, the definition and purpose behind High Occupancy Vehicles solidify why this choice is the correct answer.