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  2. Gantry (transport) - Wikipedia

    en.wikipedia.org/wiki/Gantry_(transport)

    A gantry (also known as a sign holder, road sign holder, sign structure or road sign structure) is a traffic sign assembly in which signs are mounted or railway signals are supported on an overhead support. They also often contain the apparatus for traffic monitoring systems and cameras, or open road tolling systems

  3. Current collector - Wikipedia

    en.wikipedia.org/wiki/Current_collector

    Trolley pole wheel on top of the trolley pole of Twin City Rapid Transit Company No. 1300. A current collector (often called a "pickup") is a device used in trolleybuses, trams, electric locomotives and EMUs to carry electric power from overhead lines, electric third rails, or ground-level power supplies to the electrical equipment of the vehicles.

  4. Contact rail - Wikipedia

    en.wikipedia.org/wiki/Contact_rail

    Contact rail may refer to: Overhead conductor rail; Third rail; Fourth rail; See also. Conduit current collection; Current collector; Ground-level power supply; Guide ...

  5. Overhead line - Wikipedia

    en.wikipedia.org/wiki/Overhead_line

    The generic term used by the International Union of Railways for the technology is overhead line. [1] It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire.

  6. Catenary maintenance vehicle - Wikipedia

    en.wikipedia.org/wiki/Catenary_Maintenance_Vehicle

    An Amtrak catenary maintenance vehicle. Both a crane and a movable platform can be seen on the vehicle's roof. A catenary maintenance vehicle (also known as a tower wagon or tower car) is a railroad maintenance of way vehicle that is used to maintain and inspect overhead line (also known as catenary) on electrified railroad or metro tracks.

  7. Rail fastening system - Wikipedia

    en.wikipedia.org/wiki/Rail_fastening_system

    A rail fastening system is a means of fixing rails to railroad ties (North America) or sleepers (British Isles, Australasia, and Africa). The terms rail anchors, tie plates, chairs and track fasteners are used to refer to parts or all of a rail fastening system.