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Hand signals are agreed gestures that people make with their hands or body to communicate in a non-verbal way. When used in traffic, hand signals are often used to convey driver's intention of their next movement. In some countries, hand signals can apply to any vehicle whose signal lights are missing or damaged.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 February 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 or to the right side ...
The signal is performed by holding one hand up with the thumb tucked into the palm, then folding the four other fingers down, symbolically trapping the thumb by the rest of the fingers. It was designed intentionally as a single continuous hand movement, rather than a sign held in one position, so it could be made easily visible.
These are infra-red transmitters serving the same purpose as the usual graphic signs when received by an appropriate device such as a hand-held receiver or one built into a cell phone. Then, finally, in 1914, the world's first electric traffic signal is put into place on the corner of Euclid Avenue and East 105th Street in Cleveland , Ohio, on ...
All signals use white lighting and special symbols ("S", "–" and an arrow) to distinguish them from regular signals. The small light at the top tells the driver when the vehicle's transponder signal is received by the traffic light. In traffic engineering, there are regional and national variations in traffic light operation. This may be in ...
The Swiss road signs are defined in the Road Signs Act, which is based on several laws and ordinances.Liechtenstein largely follows the legislation of Switzerland. The principal law for road signs in Switzerland is the Road Signs Act (German: Signalisationsverordnung (SSV), French: Ordonnance du sur la signalisation routière (OSR), Italian: Ordinanza sulla segnaletica stradale (OSStr)). [3]
Sometimes similar signs have minor differences in meanings, following the local traffic codes. The United Kingdom's "pass either side" sign indicates that drivers may pass on either side of an obstacle, such as a traffic island, to reach the same destination. [2]
Car controls are the components in automobiles and other powered road vehicles, such as trucks and buses, used for driving and parking. While controls like steering wheels and pedals have existed since the invention of cars, other controls have developed and adapted to the demands of drivers.