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This is an accepted version of this page This is the latest accepted revision, reviewed on 30 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 right side ...
Environmental and roadway factors can also contribute to single-vehicle crashes. These include inclement weather, poor drainage, narrow lanes and shoulders, insufficient curve banking, and sharp curves. [27] Some vehicles have unpredictable car handling characteristics or defects, which can increase the potential for a single-vehicle collision.
One of the main causes of single vehicle crashes and frontal crashes is lane departure. The goal of the lateral support systems (LSS) is to help to avoid such crashes. [3] Without those LSS systems, lane departure can be unintentional; the car drifts towards and across the edge of the lane. The car then reach a potentially dangerous situation. [3]
Self-driving car, autonomous vehicle, or driverless car A vehicle that is capable of sensing its environment and moving safely with little or no human input. Service area. See rest area. Service road. See frontage road. Sidewalk, footpath, footway, or pavement A path along the side of a road. Shoulder A reserved lane by the verge of a road or ...
Single lane shift (left) CW1-4bR Double lane shift (right) CW1-4bL ... D17 series: Truck lane and slow vehicle signs. D17-1 Next truck lane (distance) D17-2
The 'classic' one-car crash results when a vehicle slowly drifts to the right, hits dirt or rumble strips on the right shoulder of the road, and the driver becomes alert and overreacts, jerking the wheel left to bring the vehicle back onto the road. This motion causes the left front tire to strike the raised edge of the pavement at a sharp ...
In 2013, "Driving Assistant Plus" was introduced on most models combining the front-facing camera, lane-departure warning, and in some cases front radar sensors to detect vehicles ahead. Should the driver not react to the warning of a potential collision, the system would gradually prime brake pressure and apply – with maximum deceleration ...
Overtaking, usually called "passing", is legal on all four or more lane roads and on most two-lane roads with sufficient sight distance. On two-lane roads, one must pass to the left of the overtaken vehicle unless that vehicle is preparing to make a left turn, in which case the vehicle must be passed on the right.