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- Four-quadrant_gate abstract "A four-quadrant gate is a type of boom barrier gate protecting a grade crossing.It has a gate mechanism on both sides of the tracks for both directions of automotive traffic. The exit gates blocking the road leading away from the tracks in this application are equipped with a delay, and begin their descent to their horizontal position several seconds after the entrance gates do, so as to avoid trapping highway vehicles on the crossing.Many people consider four-quadrant gates to be safer than two-quadrant gates because they prevent drivers from illegally driving their vehicles around lowered gates to try to beat a train.In the UK, such crossings are categorised as 'Manually Controlled Barriers' (MCB) because they are always manually controlled, usually from a signal box. Some are known as MCB-CCTV level crossings, because they are supervised by video link to the signal box from which they are remotely controlled.".
- Four-quadrant_gate thumbnail Level_crossing_-_Chertsey_-_England_-_270404.jpg?width=300.
- Four-quadrant_gate wikiPageExternalLink I-970479.htm.
- Four-quadrant_gate wikiPageID "3702702".
- Four-quadrant_gate wikiPageRevisionID "602861257".
- Four-quadrant_gate hasPhotoCollection Four-quadrant_gate.
- Four-quadrant_gate subject Category:Level_crossings.
- Four-quadrant_gate subject Category:Road_infrastructure.
- Four-quadrant_gate subject Category:Safety.
- Four-quadrant_gate subject Category:Street_furniture.
- Four-quadrant_gate type Intersection103581125.
- Four-quadrant_gate type Junction103605722.
- Four-quadrant_gate type LevelCrossing103659122.
- Four-quadrant_gate type LevelCrossings.
- Four-quadrant_gate type Location100027167.
- Four-quadrant_gate type Object100002684.
- Four-quadrant_gate type PhysicalEntity100001930.
- Four-quadrant_gate type Point108620061.
- Four-quadrant_gate type TopographicPoint108664443.
- Four-quadrant_gate type YagoGeoEntity.
- Four-quadrant_gate type YagoLegalActorGeo.
- Four-quadrant_gate type YagoPermanentlyLocatedEntity.
- Four-quadrant_gate comment "A four-quadrant gate is a type of boom barrier gate protecting a grade crossing.It has a gate mechanism on both sides of the tracks for both directions of automotive traffic.".
- Four-quadrant_gate label "Four-quadrant gate".
- Four-quadrant_gate sameAs m.09w7lb.
- Four-quadrant_gate sameAs Q5474933.
- Four-quadrant_gate sameAs Q5474933.
- Four-quadrant_gate sameAs Four-quadrant_gate.
- Four-quadrant_gate wasDerivedFrom Four-quadrant_gate?oldid=602861257.
- Four-quadrant_gate depiction Level_crossing_-_Chertsey_-_England_-_270404.jpg.
- Four-quadrant_gate isPrimaryTopicOf Four-quadrant_gate.
