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This is an accepted version of this page This is the latest accepted revision, reviewed on 19 January 2025. Directionality of traffic flow by jurisdiction Countries by direction of road traffic, c. 2020 ⇅ Left-hand traffic ⇵ Right-hand traffic No data Left-hand traffic (LHT) and right-hand traffic (RHT) are the practices, in bidirectional traffic, of keeping to the left side and to the ...
Lane centering keeps the vehicle centered in the lane and almost always comes with steering assist to help the vehicle take gentle turns at highway speeds. [10] Lane departure warning generates a warning when the vehicle crosses a line, while lane keeping assist helps the vehicle to avoid crossing a line, standardized in ISO 11270:2014.
A lane keeping assist mechanism can either reactively turn a vehicle back into the lane if it starts to leave or proactively keep the vehicle in the center of the lane. Vehicle companies often use the term "lane keep(ing) assist" to refer to both reactive lane keep assist (LKA) and proactive lane centering assist (LCA) but the terms are ...
Automated lane keeping systems (ALKS), also described as traffic jam chauffeurs, [1] is an autonomous driving system that doesn't require driver supervision on motorways. ALKS is an international standard set out in UN-ECE regulation 157 and amounts to Level 3 vehicle automation. [ 2 ]
Lane centering assists the driver in keeping the vehicle centered in a lane. [41] A lane-centering system may autonomously take over the steering when it determines the driver is at risk of deterring from the lane. [41] This system uses cameras to monitor lane markings to stay within a safe distance between both sides of the lane. [42]
The system is widely used in countries with right-hand traffic, including most European countries. What varies, however, is the prevalence of uncontrolled intersections. In some countries, the right of way at virtually all but the most minor road junctions is controlled by the display of priority vs. stop / yield signs or by traffic lights, while in others (such as France) priority-to-the ...
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 ...
A central island, usually either with drainage, foliage, or high-impact barriers, provides a visible separation between the carriageways in opposite directions. As in the United Kingdom, Ireland, Australia, and Japan, South Africans drive on the left-hand side of the road and nearly all steering wheels are on the right-hand side of vehicles.