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Catch points and trap points are types of points which act as railway safety devices. Both work by guiding railway carriages and trucks from a dangerous route onto a separate, safer track. Catch points are used to derail vehicles which are out of control (known as runaways ) on steep slopes.
Railway vehicle for use in passenger trains [183] [184] Patch Union Pacific 588, formerly owned by Southern Pacific, showing a patch paint job of the new owner's reporting marks A locomotive or car wearing a new reporting mark or number on a "patch" over existing paint, usually of the former owner's Pennsy Style
A set of railway routes that are bundled for publicity purposes (e.g. a UK train operating company) [205] [206] Railway station Washington Union Station in Washington, D.C., an example of a railway station A train station, a stopping point for trains, usually with passenger access Railway terminal A building for passengers at the end of a ...
In 1927, Dr. Elmer Sperry built a massive rail inspection car under contract with the American Railway Association. Magnetic induction was the method used on the first rail inspection cars. This was done by passing large amounts of the magnetic field through the rail and detecting flux leakage with search coils.
The most common use of the term "track gauge" refers to the transverse distance between the inside surfaces of the two load-bearing rails of a railway track, usually measured at 12.7 millimetres (0.50 inches) to 15.9 millimetres (0.63 inches) below the top of the rail head in order to clear worn corners and allow for rail heads having sloping ...
The appropriate thickness of a layer of track ballast depends on the size and spacing of the ties, the amount of traffic on the line, and various other factors. [1] Track ballast should never be laid down less than 150 mm (6 inches) thick, [5] and high-speed railway lines may require ballast up to 0.5 metres (20 inches) thick. [6]
At 250 km/h the tracks have a centre-to-centre distance of 4.5 m (15 ft) (while the first tracks in the 1980s were built with a distance of 4.7 m (15 ft)). The TGV track construction puts both rail tracks into a common concrete block, so they can disregard a safety margin for track displacement.
RACX - Union Tank Car Company [3] (child mark of UTCX) RAEU - Reach America Esg Ltd [4] RAFU - Oxitec S R L [5] RAFX - Rose Acre Farms Inc [6] RAGU - Rabanco Companies [7] (child mark of RABU) RAHU - IGL Limited [8] RAIL - Railinc Corporation [9] (Switch Terminal Carrier) RAIU - Rainbow Containers Gmbh [10]