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  2. Track spacing - Wikipedia

    en.wikipedia.org/wiki/Track_spacing

    Measurement of track spacing from the rail head to rail head. By definition, the track spacing is given from centre to centre of a rail track. For an actual construction the distance is measured from the inside of a rail head to the matching one of the other track. As far as both tracks have the same gauge this is the same distance.

  3. Fly system - Wikipedia

    en.wikipedia.org/wiki/Fly_system

    Fly loft of the Theater Bielefeld in Germany. A fly system, or theatrical rigging system, is a system of ropes, pulleys, counterweights and related devices within a theater that enables a stage crew to fly (hoist) quickly, quietly and safely components such as curtains, lights, scenery, stage effects and, sometimes, people.

  4. List of track gauges - Wikipedia

    en.wikipedia.org/wiki/List_of_track_gauges

    Brighton and Rottingdean Seashore Electric Railway (a vehicle that ran on two parallel 2 ft 8 + 1 ⁄ 2 in (825 mm) gauge tracks, billed as 18 ft (5.5 m) gauge), Furzebrook Railway and Volk's Electric Railway: 838 mm 2 ft 9 in: Japan Nankai Railway (former gauge, converted to 1,067 mm (3 ft 6 in gauge) England

  5. Sunset Route - Wikipedia

    en.wikipedia.org/wiki/Sunset_Route

    It would incorporate concrete sleeper railroad ties, a track spacing of 20 feet (6 m), and a rail weight of 141 pounds per yard (70 kg/m), [7] [31] which are Union Pacific's standards for tracks supporting heavy axle loads and for new double-track construction.

  6. Double-track railway - Wikipedia

    en.wikipedia.org/wiki/Double-track_railway

    In any given country, rail traffic generally runs to one side of a double-track line, not always the same side as road traffic. Thus in Belgium, China, France (apart from the classic lines of the former German Alsace and Lorraine), Sweden (apart from Malmö and further south), Switzerland, Italy and Portugal for example, the railways use left-hand running, while the roads use right-hand running.

  7. Railway track - Wikipedia

    en.wikipedia.org/wiki/Railway_track

    A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.