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  • Parking brake


    Hand brake lever from a Geo Storm. In this photo, the lever mechanism is shown not installed in the car. Brake warning light ISO symbol used to indicate that the parking brake is applied In road vehicles, the parking brake, also called hand brake, emergency brake, or e-brake, is used to keep the vehicle stationary and in many cases also perform an emergency stop. Parking brakes on older vehicles often consist of a cable connected to two wheel brakes at one end and the other end to a pulling mechanism which is operated with the driver's hand or foot. The mechanism may be a hand-operated lever, at floor level beside the driver, or a straight pull handle located near the steering column, or a (foot-operated) pedal located beside the drivers leg. In most automobiles the parking brake operates only on the rear wheels, which have reduced traction while braking. Some automobiles have the parking brake operate on the front wheels, for example most Citroens manufactured since the end of World War II, and the early models of the Saab 900. The most common use for a parking brake is to keep a vehicle motionless when it is parked.

  • Emergency brake


    Emergency brake can refer to: Parking brake or hand brake in automobiles, which can also be used in case of failure of the main braking system Emergency brake (train), a term which can refer to a stronger-than-normal braking level, a separate backup braking system, or the lever used to engage the backup braking system Train protection system, which engages an emergency brake in dangerous situations Emergency brake assist, which increases braking effectiveness when a human driver executes a panic stop Autonomous emergency braking in a collision avoidance system, which engages the main braking system in automobiles when a computer detects an imminent collision Autobrake, a system for automating braking during takeoff and landing of airplanes

  • Emergency brake (train)


    alt=British electric train driver's brake On trains, the expression emergency brake has several meanings: The maximum brake force available to the engine driver from his/her conventional braking system, usually operated by taking the brake handle to its furthest position, through a gate mechanism, or by pushing a separate plunger in the cab. A completely separate mechanism from the conventional braking system, designed to stop the train as quickly as possible. A handle or plunger which may be applied by a passenger in an emergency situation, either stopping the train directly or sending an alarm to the driver so that he/she can stop the train.The emergency brake applies considerably more braking force than the standard full-service brake. The engine driver or motorman will only use the emergency brake as a last resort, since it may cause damage; even with modern wheel slide protection, a train may develop wheel-flats, and the rails themselves can suffer profile damage.

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