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  2. Electric gate - Wikipedia

    en.wikipedia.org/wiki/Electric_gate

    Electric Gate Options. A sliding electric gate with electric motor and backup battery in case of mains failure. Note also the Infrared obstacle sensor located on the wall to prevent the gate from closing while a vehicle or other obstacle is in the way. Driveway gate openers can be the rollback (sliding) type that retracks a gate along the fence ...

  3. Automated border control system - Wikipedia

    en.wikipedia.org/wiki/Automated_border_control...

    The typical work-flow of an automatic border control system (eGate) [1] Automated border control systems (ABC) or eGates are automated self-service barriers which use data stored in a chip in biometric passports along with a photo or fingerprint taken at the time of entering the eGates to verify the passport holder's identity.

  4. Level crossings in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Level_crossings_in_the...

    Gated level crossings were mandatory from 1839, but initial rules were for the gates to be ordinarily kept closed across the highway. [6] The original form of road level crossing on British railways dates from 1842 onwards, [6] [7] it consisted of two or four wooden gates (one or two on each side of the railway).

  5. Bar gate - Wikipedia

    en.wikipedia.org/wiki/Bar_gate

    Bar gate. Animation of level crossing booms lowering in Queensland, Australia. A bar gate in the Netherlands. A bar, post, pole, beam, or boom gate, [1] also known as a boom or a boom barrier, [citation needed] is a beam or bar on a pivot used as a gate. The boom is lowered to block vehicular or pedestrian access through a controlled point or ...

  6. ePassport gates - Wikipedia

    en.wikipedia.org/wiki/EPassport_gates

    ePassport gates in Heathrow Airport (Terminal 4) ePassport gates in Heathrow Airport (Terminal 5) ePassport gates in Gatwick Airport (South Terminal). ePassport gates are automated self-service barriers (an automated border control system) operated by the UK Border Force and located at immigration checkpoints in arrival halls in some airports across the UK and at the juxtaposed controls in ...

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