High-occupancy vehicle lane
A high-occupancy vehicle lane is a restricted traffic lane reserved for the exclusive use of vehicles with a driver and at least one passenger, including carpools, vanpools, and transit buses. These restrictions may be only imposed during peak travel times or may apply at all times. There are different types of lanes: temporary or permanent lanes with concrete barriers, two-directional or reversible lanes, and exclusive, concurrent, or contraflow lanes working in peak periods.
A high-occupancy vehicle lane on Interstate 5 in Seattle
The first HOV freeway, which opened in 1969, was on Shirley Highway in Northern Virginia; as of 2012, the I-95/I-395 HOV facility operates as a two-lane barrier-separated reversible HOV 3+ facility (center lanes) with access through elevated on- and off-ramps.
For 50 years, from 1970 to 2020, the California Department of Transportation preferred to use the term "carpool", as seen on I-405 in Los Angeles, as opposed to "HOV".
The I-495 Capital Beltway in the Washington D.C. Metropolitan Area. The facility is located in the median, has two HOV lanes in each direction with elevated on/off ramp access with a total of 224.0 mi (360.5 km) of lanes.
In road transport, a lane is part of a roadway that is designated to be used by a single line of vehicles to control and guide drivers and reduce traffic conflicts. Most public roads (highways) have at least two lanes, one for traffic in each direction, separated by lane markings. On multilane roadways and busier two-lane roads, lanes are designated with road surface markings. Major highways often have two multi-lane roadways separated by a median.
Thru lanes indicated by arrows on California CR G4 (Montague Expressway) in Silicon Valley
An ambulance lane in Warsaw, Poland
The Ontario Highway 401 in the Greater Toronto area, with 17 travel lanes in 6 separate carriageways visible in the midground
Turning lane on the Rodovia BR-101, Brazil