A bump gate is a drive-through

gate A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" meaning road or path; But other terms include '' yett and port''. The concept originally referred to the gap or hole in the wal ...

used in

rural areas In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry typically are describ ...

to provide a barrier to

livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to anima ...

but does not require the driver to exit the

vehicle A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles ( motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles ( trains, trams ...

. By gently contacting the swinging bump gate with the front of a vehicle and then accelerating, the gate is pushed open, allowing the vehicle to pass. This requires some skill to avoid the gate swinging back and striking the vehicle before the vehicle has cleared the path. Accordingly, a bump gate is unsuitable for long vehicles, but some installations incorporate a time-delay return mechanism. The gate does not swing on a conventional hinge. Instead, it is fastened to cylinders that loosely encircle a tall post. The bump gate's self-closing mechanism utilizes one or two cables from the gate's upper crossbar, terminated high on the post. When the gate swings open, the swivel action as the cables wind around the post raises the gate slightly. After the vehicle passes through,

gravity In physics, gravity () is a fundamental interaction which causes mutual attraction between all things with mass or energy. Gravity is, by far, the weakest of the four fundamental interactions, approximately 1038 times weaker than the str ...

causes the gate to swing back into the closed position. Usually the post is mounted to one side of the roadway, but some gates have the post in the center of a two-lane path. Extra skill is needed not to bump the gate so hard that the other end swings around to strike the rear of the vehicle.

References

{{Reflist

References

See also