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  2. Clearance (civil engineering) - Wikipedia

    en.wikipedia.org/wiki/Clearance_(civil_engineering)

    The clearance for overhead signs is 5.7 metres (18 ft 8 in) and the clearance for the soffit or underside of overpasses is 10 metres (32 ft 10 in). [ 6 ] In South Africa and the southern region of Africa, the minimum vertical clearance of modern bridges is 5 metres (16 ft 5 in), although the legal height limit of road vehicles is still at 4.3 ...

  3. 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.

  4. Structure gauge - Wikipedia

    en.wikipedia.org/wiki/Structure_gauge

    The code also defines the clearance that is shorter than the physical clearance to account for sag curves, bridge deflection and expected settlements with a recommendation of minimum clearance of 5 metres (16 ft 5 in). [2] In UK, the "standard minimum clearance" for structures over public highways is 16 feet 6 inches (5.03 m). [3]

  5. Track geometry - Wikipedia

    en.wikipedia.org/wiki/Track_geometry

    For example, North America uses the reference rail as the line rail which is the east rail of tangent track running north and south, the north rail of tangent track running east and west, the outer rail (the rail that is further away from the center) on curves, or the outside rails in multiple track territory. [6]

  6. American Railway Engineering and Maintenance-of-Way ...

    en.wikipedia.org/wiki/American_Railway...

    In 1895, the Railway Signaling Club was organized at a meeting in Chicago, Illinois, and created a code of rules governing the operation of interlockings. In 1919, the Signaling Club became the Signal Division of the newly created American Railway Association (ARA) and the Telegraph Superintendents became its Telegraph and Telephone Section.

  7. Loading gauge - Wikipedia

    en.wikipedia.org/wiki/Loading_gauge

    The Iron Ore Line north of Kiruna was the first electrified railway line in Sweden and has limited height clearance (SE-B) because of snow shelters. On the rest of the network belonging to the Swedish Transport Administration ( Trafikverket ), the structure gauge accepts cars built to SE-A and thus accepts both cars built to UIC GA and GB.

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. Minimum railway curve radius - Wikipedia

    en.wikipedia.org/wiki/Minimum_railway_curve_radius

    The minimum railway curve radius is the shortest allowable design radius for the centerline of railway tracks under a particular set of conditions. It has an important bearing on construction costs and operating costs and, in combination with superelevation (difference in elevation of the two rails) in the case of train tracks , determines the ...