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Braking distance refers to the distance a vehicle will travel from the point when its brakes are fully applied to when it comes to a complete stop. It is primarily affected by the original speed of the vehicle and the coefficient of friction between the tires and the road surface, [Note 1] and negligibly by the tires' rolling resistance and vehicle's air drag.
The two-second rule is useful as it can be applied to any speed. Drivers can find it difficult to estimate the correct distance from the car in front, let alone remember the stopping distances that are required for a given speed, or to compute the equation on the fly. The two-second rule provides a simpler way of perceiving the distance.
Emergency stopping distances can be shortened, reducing the likelihood of accidents – especially the common "nose-to-tail" incident. An electronic system designed to recognise emergency braking operation and automatically enhance braking effort improves vehicle and occupant safety, and can reduce stopping distances by up to 70 ft (21 m) at ...
A runaway truck ramp on the A7 in Germany. A runaway truck ramp, runaway truck lane, escape lane, safety ramp, emergency escape ramp, or truck arrester bed is a traffic device that enables vehicles which are having braking problems to stop safely.
In drag racing, referring to distance from the 1/8-mile mark to the 1/4-mile mark of the track. backmarker A slower car, usually in the process of being lapped by the leaders. It is also used to describe teams that consistently perform poorly. [9] [10] backup car See spare car. bag of donuts In drag racing, a perfect reaction time of .000 ...
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This is a list of catchphrases found in American and British english language television and film, where a catchphrase is a short phrase or expression that has gained usage beyond its initial scope. These are not merely catchy sayings.
British Railway Class 90 infobox showing brake force Brake force to weight ratio of the Class 67 is higher than some other locomotives. In the case of railways, it is important that staff are aware of the brake force of a train so sufficient brake power will be available to bring the train to a halt within the required distance from a given speed.