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Narrower gauge railways usually cost less to build because they are usually lighter in construction, using smaller cars and locomotives (smaller loading gauge), as well as smaller bridges, smaller tunnels (smaller structure gauge). [27] Narrow gauge is thus often used in mountainous terrain, where the savings in civil engineering work can be ...
A variable gauge multiple unit, or a train including a variable gauge locomotive (e.g. Talgo 250) and rolling stock, may drive straight across a gauge changer. Normally the locomotive will not be able to change gauge, meaning that it must move out of the way whilst the remainder of the train itself passes through.
Loading gauge is generally wider than Europe, but with many exception standards. T: standard loading gauge T: 5,300 mm height, 3,750 mm width; T c: 5,200 mm height, 3,750 mm width: for tank and dumper cars; T pr: 5,300 mm height, 3,500 mm width: extra out-of-gauge cargo load for main tracks
Track gauge or rail gauge (also known as track gage in North America [8]) is the distance between the inner sides (gauge sides) of the heads of the two load bearing rails that make up a single railway line. Each country uses different gauges for different types of trains.
A broad gauge, it is the second-widest gauge in regular use anywhere in the world, with only Indian gauge railways, 5 ft 6 in (1,676 mm), being wider (by 8 mm (5 ⁄ 16 in)). As finally established in 1955, [ 1 ] the Iberian gauge is a compromise between the similar, but slightly different, gauges adopted as respective national standards in ...
Standard gauge is defined both in metric and in imperial units. It is also the best-known gauge worldwide; 55% of the world uses this track. In 2020, China’s rail network is standard gauge, with around 79,685 km (49,514 mi) of line. [92] 1,440 mm 4 ft 8 + 11 ⁄ 16 in: Switzerland
Gauge block, a metal or ceramic block of precisely known dimension, used in measuring; Sight glass, also known as a water gauge, for measuring liquid level heights in storage tanks and pressure vessels; Boost gauge, a gauge used in conjunction with turbo-super-chargers; Pressure gauge or vacuum gauge, see pressure measurement
Traditionally, the gauge of the national railway in Spain, now managed by Adif, is 1,668 mm (5 ft 5 + 21 ⁄ 32 in), known as Iberian gauge.This gauge (originally 1,674mm but then reduced slightly to allow interoperability with Portugal) was decided upon by a Parliamentary committee, after a report known as the Informe Subercase (named for its principal author) in 1844. [1]