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A traffic lane or travel lane is a lane for the movement of vehicles travelling from one destination to another, not including shoulders. A through lane or thru lane is a traffic lane for through traffic (traffic continuing on a road or highway). At intersections, these may be indicated by arrows on the pavement pointing straight ahead.
See three-way junction 5-1-1 A transportation and traffic information telephone hotline in some regions of the United States and Canada that was initially designated for road weather information. A Access road See frontage road Advisory speed limit A speed recommendation by a governing body. All-way stop or four-way stop An intersection system where traffic approaching it from all directions ...
The lane designated for faster traffic is on the left. The lane designated for slower traffic is on the right. Most freeway exits are on the right. Overtaking is permitted to the left, and sometimes to the right. Countries party to the Vienna Convention on Road Traffic have uniform rules about overtaking and lane designation. The convention ...
A shoulder (American English), hard shoulder (British English) [1] or breakdown lane (Australian English) is an emergency stopping lane by the verge on the outer side of a road or motorway. Many wider freeways , or expressways elsewhere have shoulders on both sides of each directional carriageway—in the median, as well as at the outer edges ...
A high-occupancy vehicle lane on Interstate 5 in Seattle. A high-occupancy vehicle lane (also known as an HOV lane, carpool lane, diamond lane, 2+ lane, and transit lane or T2 or T3 lanes) 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.
Cross slope and lane width affect the safety performance of a road. Certain types of crashes, termed "lane departure crashes", are more likely on roads with narrow lanes. These include run-off-road collisions, sideswipes, and head-on collisions. For two-lane rural roads carrying over 2000 vehicles per day, the expected increase in crashes is:
A reversible lane, also known as variable lane, dynamic lane, and tidal flow, is a managed lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and lighted street signs notifying drivers which lanes are open or ...
Typical left-hand motorway road layout in Ireland and South Africa Divided median strip on a boulevard in Huizhou, China. A median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways.